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CVE-2020-15811
Vulnerability from cvelistv5
Published
2020-09-02 16:35
Modified
2024-08-04 13:30
Severity ?
EPSS score ?
Summary
An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Splitting attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the browser cache and any downstream caches with content from an arbitrary source. Squid uses a string search instead of parsing the Transfer-Encoding header to find chunked encoding. This allows an attacker to hide a second request inside Transfer-Encoding: it is interpreted by Squid as chunked and split out into a second request delivered upstream. Squid will then deliver two distinct responses to the client, corrupting any downstream caches.
References
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Squid will then deliver two distinct responses to the client, corrupting any downstream caches.\"},{\"lang\":\"es\",\"value\":\"Se detect\u00f3 un problema en Squid versiones anteriores a 4.13 y versiones 5.x anteriores a 5.0.4.\u0026#xa0;Debido a la comprobaci\u00f3n de datos incorrecta, los ataques de Divisi\u00f3n de Peticiones HTTP pueden tener \u00e9xito contra el tr\u00e1fico HTTP y HTTPS.\u0026#xa0;Esto conlleva al envenenamiento de la cach\u00e9.\u0026#xa0;Esto permite a cualquier cliente, incluyendo los scripts del navegador, omitir la seguridad local y envenenar la cach\u00e9 del navegador y cualquier cach\u00e9 aguas abajo con contenido de una fuente arbitraria.\u0026#xa0;Squid usa una b\u00fasqueda de cadenas en lugar de analizar el encabezado Transfer-Encoding para encontrar codificaci\u00f3n fragmentada.\u0026#xa0;Esto permite a un atacante ocultar una segunda petici\u00f3n dentro de Transfer-Encoding: Squid la interpreta como fragmentada y dividida en una segunda petici\u00f3n entregada en sentido ascendente.\u0026#xa0;Squid luego entregar\u00e1 dos respuestas distintas al cliente, corrompiendo cualquier cach\u00e9 aguas 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Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJJDI7JQFGQLVNCKMVY64LAFMKERAOK7/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20210219-0007/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20210226-0006/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20210226-0007/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Broken Link\",\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/4477-1/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/4551-1/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2020/dsa-4751\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]}]}}" } }
rhsa-2020_3623
Vulnerability from csaf_redhat
Published
2020-09-03 14:00
Modified
2024-11-22 15:34
Summary
Red Hat Security Advisory: squid:4 security update
Notes
Topic
An update for the squid:4 module is now available for Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.1 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.
Security Fix(es):
* squid: HTTP Request Smuggling could result in cache poisoning (CVE-2020-15810)
* squid: HTTP Request Splitting could result in cache poisoning (CVE-2020-15811)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Important" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "An update for the squid:4 module is now available for Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.1 Extended Update Support.\n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.", "title": "Topic" }, { "category": "general", "text": "Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.\n\nSecurity Fix(es):\n\n* squid: HTTP Request Smuggling could result in cache poisoning (CVE-2020-15810)\n\n* squid: HTTP Request Splitting could result in cache poisoning (CVE-2020-15811)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "title": "Details" }, { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "https://access.redhat.com/errata/RHSA-2020:3623", "url": "https://access.redhat.com/errata/RHSA-2020:3623" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "1871700", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1871700" }, { "category": "external", "summary": "1871702", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1871702" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_3623.json" } ], "title": "Red Hat Security Advisory: squid:4 security update", "tracking": { "current_release_date": "2024-11-22T15:34:09+00:00", "generator": { "date": "2024-11-22T15:34:09+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.2.1" } }, "id": "RHSA-2020:3623", "initial_release_date": "2020-09-03T14:00:58+00:00", "revision_history": [ { "date": "2020-09-03T14:00:58+00:00", "number": "1", "summary": "Initial version" }, { "date": "2020-09-03T14:00:58+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-22T15:34:09+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux 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Due to incorrect data validation, a HTTP Request Smuggling attack against HTTP and HTTPS traffic is possible leading to cache poisoning. The highest threat from this vulnerability is to data confidentiality and integrity.", "title": "Vulnerability description" }, { "category": "summary", "text": "squid: HTTP Request Smuggling could result in cache poisoning", "title": "Vulnerability summary" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e", "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e:libecap-0:1.0.1-2.module+el8.0.0+4045+70edde92.ppc64le", "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e:libecap-0:1.0.1-2.module+el8.0.0+4045+70edde92.src", "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e:libecap-0:1.0.1-2.module+el8.0.0+4045+70edde92.x86_64", 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"url": "https://www.cve.org/CVERecord?id=CVE-2020-15810" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-15810", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-15810" } ], "release_date": "2020-08-23T00:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2020-09-03T14:00:58+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter installing this update, the squid service will be restarted automatically.", "product_ids": [ "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e", "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e:libecap-0:1.0.1-2.module+el8.0.0+4045+70edde92.ppc64le", "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e:libecap-0:1.0.1-2.module+el8.0.0+4045+70edde92.src", 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"https://access.redhat.com/errata/RHSA-2020:3623" }, { "category": "workaround", "details": "Disable the relaxed HTTP parser in `squid.conf`:\n\n```\nrelaxed_header_parser off\n```", "product_ids": [ "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e", "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e:libecap-0:1.0.1-2.module+el8.0.0+4045+70edde92.ppc64le", "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e:libecap-0:1.0.1-2.module+el8.0.0+4045+70edde92.src", "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e:libecap-0:1.0.1-2.module+el8.0.0+4045+70edde92.x86_64", "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e:libecap-debuginfo-0:1.0.1-2.module+el8.0.0+4045+70edde92.ppc64le", "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e:libecap-debuginfo-0:1.0.1-2.module+el8.0.0+4045+70edde92.x86_64", "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e:libecap-debugsource-0:1.0.1-2.module+el8.0.0+4045+70edde92.ppc64le", 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HTTP Request Smuggling could result in cache poisoning" }, { "cve": "CVE-2020-15811", "cwe": { "id": "CWE-444", "name": "Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027)" }, "discovery_date": "2020-08-24T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1871702" } ], "notes": [ { "category": "description", "text": "A flaw was found in squid. Due to incorrect data validation, an HTTP Request Splitting attack against HTTP and HTTPS traffic is possible leading to cache poisoning. The highest threat from this vulnerability is to data confidentiality and integrity.", "title": "Vulnerability description" }, { "category": "summary", "text": "squid: HTTP Request Splitting could result in cache poisoning", "title": "Vulnerability summary" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e", "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e:libecap-0:1.0.1-2.module+el8.0.0+4045+70edde92.ppc64le", "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e:libecap-0:1.0.1-2.module+el8.0.0+4045+70edde92.src", "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e:libecap-0:1.0.1-2.module+el8.0.0+4045+70edde92.x86_64", 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"url": "https://www.cve.org/CVERecord?id=CVE-2020-15811" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-15811", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-15811" } ], "release_date": "2020-08-23T00:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2020-09-03T14:00:58+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter installing this update, the squid service will be restarted automatically.", "product_ids": [ "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e", "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e:libecap-0:1.0.1-2.module+el8.0.0+4045+70edde92.ppc64le", "AppStream-8.0.0.Z.E4S:squid:4:8000020200827105727:f8e95b4e:libecap-0:1.0.1-2.module+el8.0.0+4045+70edde92.src", 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HTTP Request Splitting could result in cache poisoning" } ] }
rhsa-2020_4082
Vulnerability from csaf_redhat
Published
2020-09-30 07:07
Modified
2024-11-22 15:34
Summary
Red Hat Security Advisory: squid security update
Notes
Topic
An update for squid is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.
Security Fix(es):
* squid: HTTP Request Smuggling could result in cache poisoning (CVE-2020-15810)
* squid: HTTP Request Splitting could result in cache poisoning (CVE-2020-15811)
* squid: Information Disclosure issue in FTP Gateway (CVE-2019-12528)
* squid: Improper input validation issues in HTTP Request processing (CVE-2020-8449)
* squid: Buffer overflow in reverse-proxy configurations (CVE-2020-8450)
* squid: Request smuggling and poisoning attack against the HTTP cache (CVE-2020-15049)
* squid: Improper input validation could result in a DoS (CVE-2020-24606)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Important" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "An update for squid is now available for Red Hat Enterprise Linux 7.\n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.", "title": "Topic" }, { "category": "general", "text": "Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.\n\nSecurity Fix(es):\n\n* squid: HTTP Request Smuggling could result in cache poisoning (CVE-2020-15810)\n\n* squid: HTTP Request Splitting could result in cache poisoning (CVE-2020-15811)\n\n* squid: Information Disclosure issue in FTP Gateway (CVE-2019-12528)\n\n* squid: Improper input validation issues in HTTP Request processing (CVE-2020-8449)\n\n* squid: Buffer overflow in reverse-proxy configurations (CVE-2020-8450)\n\n* squid: Request smuggling and poisoning attack against the HTTP cache (CVE-2020-15049)\n\n* squid: Improper input validation could result in a DoS (CVE-2020-24606)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "title": "Details" }, { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "https://access.redhat.com/errata/RHSA-2020:4082", "url": "https://access.redhat.com/errata/RHSA-2020:4082" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "1798534", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1798534" }, { "category": "external", "summary": "1798540", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1798540" }, { "category": "external", "summary": "1798552", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1798552" }, { "category": "external", "summary": "1852550", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1852550" }, { "category": "external", "summary": "1871700", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1871700" }, { "category": "external", "summary": "1871702", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1871702" }, { "category": "external", "summary": "1871705", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1871705" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_4082.json" } ], "title": "Red Hat Security Advisory: squid security update", "tracking": { "current_release_date": "2024-11-22T15:34:18+00:00", "generator": { "date": "2024-11-22T15:34:18+00:00", "engine": { "name": "Red Hat SDEngine", 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It allows a crafted FTP server to trigger disclosure of sensitive information from heap memory, such as information associated with other users\u0027 sessions or non-Squid processes.", "title": "Vulnerability description" }, { "category": "summary", "text": "squid: Information Disclosure issue in FTP Gateway", "title": "Vulnerability summary" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.ppc64", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.ppc64le", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.s390x", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.src", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.x86_64", "7Server-7.9.Z:squid-debuginfo-7:3.5.20-17.el7_9.4.ppc64", 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"cwe": { "id": "CWE-20", "name": "Improper Input Validation" }, "discovery_date": "2020-02-02T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1798540" } ], "notes": [ { "category": "description", "text": "A flaw was found in squid. Due to incorrect input validation, squid can interpret crafted HTTP requests in unexpected ways to access server resources prohibited by earlier security filters.", "title": "Vulnerability description" }, { "category": "summary", "text": "squid: Improper input validation issues in HTTP Request processing", "title": "Vulnerability summary" }, { "category": "other", "text": "This only affects deployments acting as reverse proxy with a http_port \u0027accel\u0027 or \u0027vhost\u0027 (squid 2.x and 3.x) or http_port \u0027accel\u0027 configuration (squid 4.x).", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.ppc64", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.ppc64le", 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"category": "impact", "details": "Moderate" } ], "title": "squid: Improper input validation issues in HTTP Request processing" }, { "cve": "CVE-2020-8450", "cwe": { "id": "CWE-119", "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer" }, "discovery_date": "2020-02-02T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1798552" } ], "notes": [ { "category": "description", "text": "A flaw was found in squid. Due to incorrect buffer management, a remote client can cause a buffer overflow in a Squid instance acting as a reverse proxy.", "title": "Vulnerability description" }, { "category": "summary", "text": "squid: Buffer overflow in reverse-proxy configurations", "title": "Vulnerability summary" }, { "category": "other", "text": "Although the squid packages for Red Hat Enterprise Linux 6 through 8 are affected, they are compiled with FORTIFY_SOURCE, which in this case limits the impact of the buffer overflow to an application termination. This only affects deployments acting as reverse proxy with a http_port \u0027accel\u0027 or \u0027vhost\u0027 (squid 2.x and 3.x) or http_port \u0027accel\u0027 configuration (squid 4.x).", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.ppc64", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.ppc64le", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.s390x", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.src", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.x86_64", "7Server-7.9.Z:squid-debuginfo-7:3.5.20-17.el7_9.4.ppc64", "7Server-7.9.Z:squid-debuginfo-7:3.5.20-17.el7_9.4.ppc64le", "7Server-7.9.Z:squid-debuginfo-7:3.5.20-17.el7_9.4.s390x", 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"discovery_date": "2020-06-26T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1852550" } ], "notes": [ { "category": "description", "text": "A flaw was found in squid. A trusted client is able to perform a request smuggling and poison the HTTP cache contents with crafted HTTP(S) request messages. This attack requires an upstream server to participate in the smuggling and generate the poison response sequence. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.", "title": "Vulnerability description" }, { "category": "summary", "text": "squid: Request smuggling and poisoning attack against the HTTP cache", "title": "Vulnerability summary" }, { "category": "other", "text": "This issue has been rated as having moderate security impact, (despite of having a higher CVSS scoring) because the attack requires an upstream server to participate in the smuggling attack and generate the poison response sequence, which is really uncommon because most popular software are not vulnerable to participation in this attack. While the vulnerability does exists in squid, it is not easily exploitable and requires participation of other components on the network.", "title": "Statement" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.ppc64", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.ppc64le", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.s390x", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.src", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.x86_64", "7Server-7.9.Z:squid-debuginfo-7:3.5.20-17.el7_9.4.ppc64", "7Server-7.9.Z:squid-debuginfo-7:3.5.20-17.el7_9.4.ppc64le", "7Server-7.9.Z:squid-debuginfo-7:3.5.20-17.el7_9.4.s390x", "7Server-7.9.Z:squid-debuginfo-7:3.5.20-17.el7_9.4.x86_64", 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"CVE-2020-15810", "cwe": { "id": "CWE-444", "name": "Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027)" }, "discovery_date": "2020-08-24T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1871700" } ], "notes": [ { "category": "description", "text": "A flaw was found in squid. Due to incorrect data validation, a HTTP Request Smuggling attack against HTTP and HTTPS traffic is possible leading to cache poisoning. The highest threat from this vulnerability is to data confidentiality and integrity.", "title": "Vulnerability description" }, { "category": "summary", "text": "squid: HTTP Request Smuggling could result in cache poisoning", "title": "Vulnerability summary" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.ppc64", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.ppc64le", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.s390x", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.src", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.x86_64", "7Server-7.9.Z:squid-debuginfo-7:3.5.20-17.el7_9.4.ppc64", "7Server-7.9.Z:squid-debuginfo-7:3.5.20-17.el7_9.4.ppc64le", "7Server-7.9.Z:squid-debuginfo-7:3.5.20-17.el7_9.4.s390x", 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"text": "A flaw was found in squid. Due to incorrect data validation, an HTTP Request Splitting attack against HTTP and HTTPS traffic is possible leading to cache poisoning. The highest threat from this vulnerability is to data confidentiality and integrity.", "title": "Vulnerability description" }, { "category": "summary", "text": "squid: HTTP Request Splitting could result in cache poisoning", "title": "Vulnerability summary" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.ppc64", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.ppc64le", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.s390x", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.src", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.x86_64", "7Server-7.9.Z:squid-debuginfo-7:3.5.20-17.el7_9.4.ppc64", "7Server-7.9.Z:squid-debuginfo-7:3.5.20-17.el7_9.4.ppc64le", "7Server-7.9.Z:squid-debuginfo-7:3.5.20-17.el7_9.4.s390x", 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A denial of service attack is possible due to an improper input validation. The highest threat from this vulnerability is to system availability.", "title": "Vulnerability description" }, { "category": "summary", "text": "squid: Improper input validation could result in a DoS", "title": "Vulnerability summary" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.ppc64", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.ppc64le", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.s390x", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.src", "7Server-7.9.Z:squid-7:3.5.20-17.el7_9.4.x86_64", "7Server-7.9.Z:squid-debuginfo-7:3.5.20-17.el7_9.4.ppc64", "7Server-7.9.Z:squid-debuginfo-7:3.5.20-17.el7_9.4.ppc64le", "7Server-7.9.Z:squid-debuginfo-7:3.5.20-17.el7_9.4.s390x", 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wid-sec-w-2023-2470
Vulnerability from csaf_certbund
Published
2020-08-23 22:00
Modified
2023-09-27 22:00
Summary
Squid: Mehrere Schwachstellen
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung
Squid ist ein Open-Source Web Proxy Cache für Unix und Windows Plattformen. Die Software unterstützt Proxying und Caching von HTTP, FTP und anderen Protokollen, sowie SSL und Access Control Lists.
Angriff
Ein entfernter, anonymer oder authentiiserter Angreifer kann mehrere Schwachstellen in Squid ausnutzen, um einen Denial of Service Angriff durchzuführen, Daten zu manipulieren oder Sicherheitsmechanismen zu umgehen.
Betroffene Betriebssysteme
- UNIX
- Linux
- Windows
{ "document": { "aggregate_severity": { "text": "hoch" }, "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "de-DE", "notes": [ { "category": "legal_disclaimer", "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen." }, { "category": "description", "text": "Squid ist ein Open-Source Web Proxy Cache f\u00fcr Unix und Windows Plattformen. Die Software unterst\u00fctzt Proxying und Caching von HTTP, FTP und anderen Protokollen, sowie SSL und Access Control Lists.", "title": "Produktbeschreibung" }, { "category": "summary", "text": "Ein entfernter, anonymer oder authentiiserter Angreifer kann mehrere Schwachstellen in Squid ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren, Daten zu manipulieren oder Sicherheitsmechanismen zu umgehen.", "title": "Angriff" }, { "category": "general", "text": "- UNIX\n- Linux\n- Windows", "title": "Betroffene Betriebssysteme" } ], "publisher": { "category": "other", "contact_details": "csaf-provider@cert-bund.de", "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik", "namespace": "https://www.bsi.bund.de" }, "references": [ { "category": "self", "summary": "WID-SEC-W-2023-2470 - CSAF Version", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2020/wid-sec-w-2023-2470.json" }, { "category": "self", "summary": "WID-SEC-2023-2470 - Portal Version", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-2470" }, { "category": "external", "summary": "Amazon Linux Security Advisory ALASSQUID4-2023-006 vom 2023-09-27", "url": "https://alas.aws.amazon.com/AL2/ALASSQUID4-2023-006.html" }, { "category": "external", "summary": "Advisory SQUID-2020:9 vom 2020-08-23", "url": "https://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg/" }, { "category": "external", "summary": "Advisory SQUID-2020:8 vom 2020-08-23", "url": "https://github.com/squid-cache/squid/security/advisories/GHSA-c7p8-xqhm-49wv" }, { "category": "external", "summary": "Advisory SQUID-2020:10 vom 2020-08-23", "url": "https://github.com/squid-cache/squid/security/advisories/GHSA-3365-q9qx-f98m" }, { "category": "external", "summary": "Ubuntu Security Notice USN-4477-1 vom 2020-08-27", "url": "https://usn.ubuntu.com/4477-1/" }, { "category": "external", "summary": "Debian Security Advisory DSA-4751 vom 2020-08-27", "url": "https://www.debian.org/security/2020/dsa-4751" }, { "category": "external", "summary": "SUSE Security Update SUSE-SU-2020:2443-1 vom 2020-09-02", "url": "http://lists.suse.com/pipermail/sle-security-updates/2020-September/007332.html" }, { "category": "external", "summary": "SUSE Security Update SUSE-SU-2020:2442-1 vom 2020-09-02", "url": "http://lists.suse.com/pipermail/sle-security-updates/2020-September/007330.html" }, { "category": "external", "summary": "SUSE Security Update SUSE-SU-2020:2471-1 vom 2020-09-03", "url": "http://lists.suse.com/pipermail/sle-security-updates/2020-September/007341.html" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2020:3623 vom 2020-09-03", "url": "https://access.redhat.com/errata/RHSA-2020:3623" }, { "category": "external", "summary": "Oracle Linux Security Advisory ELSA-2021-1135 vom 2021-04-09", "url": "https://linux.oracle.com/errata/ELSA-2021-1135.html" }, { "category": "external", "summary": "Ubuntu Security Notice USN-4551-1 vom 2020-09-28", "url": "https://usn.ubuntu.com/4551-1/" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2020:4082 vom 2020-09-30", "url": "https://access.redhat.com/errata/RHSA-2020:4082" }, { "category": "external", "summary": "Debian Security Advisory DLA-2394 vom 2020-10-02", "url": "https://lists.debian.org/debian-lts-announce/2020/debian-lts-announce-202010/msg00005.html" }, { "category": "external", "summary": "Red Hat Security Advisory RHSA-2020:4743 vom 2020-11-04", "url": "https://access.redhat.com/errata/RHSA-2020:4743" }, { "category": "external", "summary": "SUSE Security Update SUSE-SU-2020:14590-1 vom 2020-12-30", "url": "https://lists.suse.com/pipermail/sle-security-updates/2020-December/008129.html" }, { "category": "external", "summary": "SUSE Security Update SUSE-SU-2022:14908-1 vom 2022-03-14", "url": "https://lists.suse.com/pipermail/sle-security-updates/2022-March/010430.html" } ], "source_lang": "en-US", "title": "Squid: Mehrere Schwachstellen", "tracking": { "current_release_date": "2023-09-27T22:00:00.000+00:00", "generator": { "date": "2024-02-15T17:45:35.340+00:00", "engine": { "name": "BSI-WID", "version": "1.3.0" } }, "id": "WID-SEC-W-2023-2470", "initial_release_date": "2020-08-23T22:00:00.000+00:00", "revision_history": [ { "date": "2020-08-23T22:00:00.000+00:00", "number": "1", "summary": "Initiale Fassung" }, { "date": "2020-08-27T22:00:00.000+00:00", "number": "2", "summary": "Neue Updates von Ubuntu und Debian aufgenommen" }, { "date": "2020-09-02T22:00:00.000+00:00", "number": "3", "summary": "Neue Updates von SUSE aufgenommen" }, { "date": "2020-09-03T22:00:00.000+00:00", "number": "4", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2020-09-28T22:00:00.000+00:00", "number": "5", "summary": "Neue Updates von Ubuntu aufgenommen" }, { "date": "2020-09-29T22:00:00.000+00:00", "number": "6", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2020-10-04T22:00:00.000+00:00", "number": "7", "summary": "Neue Updates von Debian aufgenommen" }, { "date": "2020-11-03T23:00:00.000+00:00", "number": "8", "summary": "Neue Updates von Red Hat aufgenommen" }, { "date": "2020-12-30T23:00:00.000+00:00", "number": "9", "summary": "Neue Updates von SUSE aufgenommen" }, { "date": "2021-04-08T22:00:00.000+00:00", "number": "10", "summary": "Neue Updates von Oracle Linux aufgenommen" }, { "date": "2022-03-14T23:00:00.000+00:00", "number": "11", "summary": "Neue Updates von SUSE aufgenommen" }, { "date": "2023-09-27T22:00:00.000+00:00", "number": "12", "summary": "Neue Updates von Amazon aufgenommen" } ], "status": "final", "version": "12" } }, "product_tree": { "branches": [ { "branches": [ { "category": "product_name", "name": "Amazon Linux 2", "product": { "name": "Amazon Linux 2", "product_id": "398363", "product_identification_helper": { "cpe": "cpe:/o:amazon:linux_2:-" } } } ], "category": "vendor", "name": "Amazon" }, { "branches": [ { "category": "product_name", "name": "Debian Linux", "product": { "name": "Debian Linux", "product_id": "2951", "product_identification_helper": { "cpe": "cpe:/o:debian:debian_linux:-" } } } ], "category": "vendor", "name": "Debian" }, { "branches": [ { "branches": [ { "category": "product_name", "name": "Open Source Squid \u003c 4.13", "product": { "name": "Open Source Squid \u003c 4.13", "product_id": "T017150", "product_identification_helper": { "cpe": "cpe:/a:squid-cache:squid:4.13" } } }, { "category": "product_name", "name": "Open Source Squid \u003c 5.0.4", "product": { "name": "Open Source Squid \u003c 5.0.4", "product_id": "T017151", "product_identification_helper": { "cpe": "cpe:/a:squid-cache:squid:5.0.4" } } } ], "category": "product_name", "name": "Squid" } ], "category": "vendor", "name": "Open Source" }, { "branches": [ { "category": "product_name", "name": "Oracle Linux", "product": { "name": "Oracle Linux", "product_id": "T004914", "product_identification_helper": { "cpe": "cpe:/o:oracle:linux:-" } } } ], "category": "vendor", "name": "Oracle" }, { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux", "product": { "name": "Red Hat Enterprise Linux", "product_id": "67646", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:-" } } } ], "category": "vendor", "name": "Red Hat" }, { "branches": [ { "category": "product_name", "name": "SUSE Linux", "product": { "name": "SUSE Linux", "product_id": "T002207", "product_identification_helper": { "cpe": "cpe:/o:suse:suse_linux:-" } } } ], "category": "vendor", "name": "SUSE" }, { "branches": [ { "category": "product_name", "name": "Ubuntu Linux", "product": { "name": "Ubuntu Linux", "product_id": "T000126", "product_identification_helper": { "cpe": "cpe:/o:canonical:ubuntu_linux:-" } } } ], "category": "vendor", "name": "Ubuntu" } ] }, "vulnerabilities": [ { "cve": "CVE-2020-24606", "notes": [ { "category": "description", "text": "Es existiert eine Schwachstelle in Squid. Sie beruht auf einem Fehler bei der Verarbeitung von \"Cache Digest Response\" Nachrichten, die ein vertrauensw\u00fcrdiger Peer schickt. Ein Angreifer kann dieses durch \u00dcbermittlung geeignet gestalteter Daten zu einem Denial of Service Angriff gegen das unterliegende Betriebssystem nutzen. Nur Installationen, die \"cache_peer\" mit dem \"cache digests\" Merkmal nutzen, sind von dieser Schwachstelle betroffen." } ], "product_status": { "known_affected": [ "2951", "T002207", "67646", "T000126", "398363", "T004914" ] }, "release_date": "2020-08-23T22:00:00Z", "title": "CVE-2020-24606" }, { "cve": "CVE-2020-15810", "notes": [ { "category": "description", "text": "In Squid existieren mehrere Schwachstellen. Sie beruhen auf Fehlern bei der Verarbeitung von HTTP Nachrichten. Ein Angreifer kann dieses zu HTTP Request Smuggling und HTTP Request Splitting nutzen und so Daten manipulieren oder Sicherheitsmechanismen umgehen." } ], "product_status": { "known_affected": [ "2951", "T002207", "67646", "T000126", "398363", "T004914" ] }, "release_date": "2020-08-23T22:00:00Z", "title": "CVE-2020-15810" }, { "cve": "CVE-2020-15811", "notes": [ { "category": "description", "text": "In Squid existieren mehrere Schwachstellen. Sie beruhen auf Fehlern bei der Verarbeitung von HTTP Nachrichten. Ein Angreifer kann dieses zu HTTP Request Smuggling und HTTP Request Splitting nutzen und so Daten manipulieren oder Sicherheitsmechanismen umgehen." } ], "product_status": { "known_affected": [ "2951", "T002207", "67646", "T000126", "398363", "T004914" ] }, "release_date": "2020-08-23T22:00:00Z", "title": "CVE-2020-15811" } ] }
gsd-2020-15811
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Splitting attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the browser cache and any downstream caches with content from an arbitrary source. Squid uses a string search instead of parsing the Transfer-Encoding header to find chunked encoding. This allows an attacker to hide a second request inside Transfer-Encoding: it is interpreted by Squid as chunked and split out into a second request delivered upstream. Squid will then deliver two distinct responses to the client, corrupting any downstream caches.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2020-15811", "description": "An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Splitting attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the browser cache and any downstream caches with content from an arbitrary source. Squid uses a string search instead of parsing the Transfer-Encoding header to find chunked encoding. This allows an attacker to hide a second request inside Transfer-Encoding: it is interpreted by Squid as chunked and split out into a second request delivered upstream. Squid will then deliver two distinct responses to the client, corrupting any downstream caches.", "id": "GSD-2020-15811", "references": [ "https://www.suse.com/security/cve/CVE-2020-15811.html", "https://www.debian.org/security/2020/dsa-4751", "https://access.redhat.com/errata/RHSA-2020:4082", "https://access.redhat.com/errata/RHSA-2020:3623", "https://ubuntu.com/security/CVE-2020-15811", "https://advisories.mageia.org/CVE-2020-15811.html", "https://alas.aws.amazon.com/cve/html/CVE-2020-15811.html", "https://linux.oracle.com/cve/CVE-2020-15811.html" ] }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2020-15811" ], "details": "An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Splitting attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the browser cache and any downstream caches with content from an arbitrary source. Squid uses a string search instead of parsing the Transfer-Encoding header to find chunked encoding. This allows an attacker to hide a second request inside Transfer-Encoding: it is interpreted by Squid as chunked and split out into a second request delivered upstream. Squid will then deliver two distinct responses to the client, corrupting any downstream caches.", "id": "GSD-2020-15811", "modified": "2023-12-13T01:21:43.240488Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2020-15811", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Splitting attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the browser cache and any downstream caches with content from an arbitrary source. Squid uses a string search instead of parsing the Transfer-Encoding header to find chunked encoding. This allows an attacker to hide a second request inside Transfer-Encoding: it is interpreted by Squid as chunked and split out into a second request delivered upstream. Squid will then deliver two distinct responses to the client, corrupting any downstream caches." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/squid-cache/squid/security/advisories/GHSA-c7p8-xqhm-49wv", "refsource": "MISC", "url": "https://github.com/squid-cache/squid/security/advisories/GHSA-c7p8-xqhm-49wv" }, { "name": "DSA-4751", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2020/dsa-4751" }, { "name": "USN-4477-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4477-1/" }, { "name": "FEDORA-2020-73af8655eb", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HJJDI7JQFGQLVNCKMVY64LAFMKERAOK7/" }, { "name": "FEDORA-2020-63f3bd656e", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BMTFLVB7GLRF2CKGFPZ4G4R5DIIPHWI3/" }, { "name": "openSUSE-SU-2020:1346", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html" }, { "name": "openSUSE-SU-2020:1369", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html" }, { "name": "FEDORA-2020-6c58bff862", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/" }, { "name": "USN-4551-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4551-1/" }, { "name": "[debian-lts-announce] 20201002 [SECURITY] [DLA 2394-1] squid3 security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html" }, { "name": "https://security.netapp.com/advisory/ntap-20210219-0007/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20210219-0007/" }, { "name": "https://security.netapp.com/advisory/ntap-20210226-0007/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20210226-0007/" }, { "name": "https://security.netapp.com/advisory/ntap-20210226-0006/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20210226-0006/" } ] } }, "nvd.nist.gov": { "cve": { "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*", "matchCriteriaId": "4A9D1D4D-25A3-4B02-86CA-CCC939C70E44", "versionEndExcluding": "4.13", "vulnerable": true }, { "criteria": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*", "matchCriteriaId": "84BC35EF-F998-4114-BF16-E77078504004", "versionEndExcluding": "5.0.4", "versionStartIncluding": "5.0", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B", "vulnerable": true }, { "criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D", "vulnerable": true }, { "criteria": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*", "matchCriteriaId": "902B8056-9E37-443B-8905-8AA93E2447FB", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true }, { "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*", "matchCriteriaId": "80F0FA5D-8D3B-4C0E-81E2-87998286AF33", "vulnerable": true }, { "criteria": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "matchCriteriaId": "36D96259-24BD-44E2-96D9-78CE1D41F956", "vulnerable": true }, { "criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194", "vulnerable": true } ], "negate": false, "operator": "OR" } ] }, { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*", "matchCriteriaId": "B620311B-34A3-48A6-82DF-6F078D7A4493", "vulnerable": true }, { "criteria": "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*", "matchCriteriaId": "B009C22E-30A4-4288-BCF6-C3E81DEAF45A", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "descriptions": [ { "lang": "en", "value": "An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Splitting attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the browser cache and any downstream caches with content from an arbitrary source. Squid uses a string search instead of parsing the Transfer-Encoding header to find chunked encoding. This allows an attacker to hide a second request inside Transfer-Encoding: it is interpreted by Squid as chunked and split out into a second request delivered upstream. Squid will then deliver two distinct responses to the client, corrupting any downstream caches." }, { "lang": "es", "value": "Se detect\u00f3 un problema en Squid versiones anteriores a 4.13 y versiones 5.x anteriores a 5.0.4.\u0026#xa0;Debido a la comprobaci\u00f3n de datos incorrecta, los ataques de Divisi\u00f3n de Peticiones HTTP pueden tener \u00e9xito contra el tr\u00e1fico HTTP y HTTPS.\u0026#xa0;Esto conlleva al envenenamiento de la cach\u00e9.\u0026#xa0;Esto permite a cualquier cliente, incluyendo los scripts del navegador, omitir la seguridad local y envenenar la cach\u00e9 del navegador y cualquier cach\u00e9 aguas abajo con contenido de una fuente arbitraria.\u0026#xa0;Squid usa una b\u00fasqueda de cadenas en lugar de analizar el encabezado Transfer-Encoding para encontrar codificaci\u00f3n fragmentada.\u0026#xa0;Esto permite a un atacante ocultar una segunda petici\u00f3n dentro de Transfer-Encoding: Squid la interpreta como fragmentada y dividida en una segunda petici\u00f3n entregada en sentido ascendente.\u0026#xa0;Squid luego entregar\u00e1 dos respuestas distintas al cliente, corrompiendo cualquier cach\u00e9 aguas abajo" } ], "id": "CVE-2020-15811", "lastModified": "2024-02-02T03:04:21.970", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N", "version": "2.0" }, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false } ], "cvssMetricV31": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1" }, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2020-09-02T17:15:11.687", "references": [ { "source": "cve@mitre.org", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html" }, { "source": "cve@mitre.org", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html" }, { "source": "cve@mitre.org", "tags": [ "Patch" ], "url": "https://github.com/squid-cache/squid/security/advisories/GHSA-c7p8-xqhm-49wv" }, { "source": "cve@mitre.org", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html" }, { "source": "cve@mitre.org", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/" }, { "source": "cve@mitre.org", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMTFLVB7GLRF2CKGFPZ4G4R5DIIPHWI3/" }, { "source": "cve@mitre.org", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJJDI7JQFGQLVNCKMVY64LAFMKERAOK7/" }, { "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20210219-0007/" }, { "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20210226-0006/" }, { "source": "cve@mitre.org", "tags": [ "Broken Link", "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20210226-0007/" }, { "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/4477-1/" }, { "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/4551-1/" }, { "source": "cve@mitre.org", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://www.debian.org/security/2020/dsa-4751" } ], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-697" } ], "source": "nvd@nist.gov", "type": "Primary" } ] } } } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.