Vulnerability-Lookup

CVE-2020-13933 (GCVE-0-2020-13933)

Vulnerability from cvelistv5 – Published: 2020-08-17 20:19 – Updated: 2024-08-04 12:32

Summary

Apache Shiro before 1.6.0, when using Apache Shiro, a specially crafted HTTP request may cause an authentication bypass.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE

Information Disclosure

Assigner

apache

References

16 references

URL	Tags
https://lists.apache.org/thread.html/r539f8770609…	x_refsource_MISC
https://lists.apache.org/thread.html/r18b45d560d7…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r9ea6d8560d6…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r6ea0224c197…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r4c1e1249e9e…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r8097b81905f…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rb5edf49cd14…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r4506cedc401…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r70098e336d0…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rb47d88af224…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r575301804bf…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r70b907ccb30…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r9d93dfb5df0…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/re25b8317b00…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r852971e28f5…	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST

Impacted products

1 product

Vendor	Product	Version
n/a	Apache Shiro	Affected: Apache Shiro before version 1.6.0

Show details on NVD website

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    "assignerShortName": "apache",
    "cveId": "CVE-2020-13933",
    "datePublished": "2020-08-17T20:19:53.000Z",
    "dateReserved": "2020-06-08T00:00:00.000Z",
    "dateUpdated": "2024-08-04T12:32:14.332Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2020-13933",
      "date": "2026-06-16",
      "epss": "0.48019",
      "percentile": "0.98705"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:apache:shiro:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"1.6.0\", \"matchCriteriaId\": \"3A1E6484-27EC-4428-AD24-0D3296581F92\"}]}]}, {\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"DEECE5FC-CACF-4496-A3E7-164736409252\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"Apache Shiro before 1.6.0, when using Apache Shiro, a specially crafted HTTP request may cause an authentication bypass.\"}, {\"lang\": \"es\", \"value\": \"Apache Shiro versiones anteriores a 1.6.0, cuando se usa Apache Shiro, una petici\\u00f3n HTTP especialmente dise\\u00f1ada puede causar una omisi\\u00f3n de autenticaci\\u00f3n.\"}]",
      "id": "CVE-2020-13933",
      "lastModified": "2024-11-21T05:02:10.570",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:P/I:N/A:N\", \"baseScore\": 5.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 10.0, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2020-08-17T21:15:11.647",
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      "sourceIdentifier": "security@apache.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-noinfo\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2020-13933\",\"sourceIdentifier\":\"security@apache.org\",\"published\":\"2020-08-17T21:15:11.647\",\"lastModified\":\"2024-11-21T05:02:10.570\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Apache Shiro before 1.6.0, when using Apache Shiro, a specially crafted HTTP request may cause an authentication bypass.\"},{\"lang\":\"es\",\"value\":\"Apache Shiro versiones anteriores a 1.6.0, cuando se usa Apache Shiro, una petici\u00f3n HTTP especialmente dise\u00f1ada puede causar una omisi\u00f3n de autenticaci\u00f3n.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:N/A:N\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:shiro:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"1.6.0\",\"matchCriteriaId\":\"3A1E6484-27EC-4428-AD24-0D3296581F92\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DEECE5FC-CACF-4496-A3E7-164736409252\"}]}]}],\"references\":[{\"url\":\"https://lists.apache.org/thread.html/r18b45d560d76c4260813c802771cc9678aa651fb8340e09366bfa198%40%3Cdev.geode.apache.org%3E\",\"source\":\"security@apache.org\"},{\"url\":\"https://lists.apache.org/thread.html/r4506cedc401d6b8de83787f8436aac83956e411d66848c84785db46d%40%3Cdev.shiro.apache.org%3E\",\"source\":\"security@apache.org\"},{\"url\":\"https://lists.apache.org/thread.html/r4c1e1249e9e1acb868db0c80728c13f448d07333da06a0f1603c0a33%40%3Cdev.shiro.apache.org%3E\",\"source\":\"security@apache.org\"},{\"url\":\"https://lists.apache.org/thread.html/r539f87706094e79c5da0826030384373f0041068936912876856835f%40%3Cdev.shiro.apache.org%3E\",\"source\":\"security@apache.org\",\"tags\":[\"Mailing 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List\",\"Third Party Advisory\"]}]}}"
  }
}

RHSA-2021_0384

Vulnerability from csaf_redhat - Published: 2021-02-02 14:23 - Updated: 2024-11-22 16:14

Summary

Red Hat Security Advisory: Red Hat JBoss Fuse/A-MQ 6.3 R18 security and bug fix update

Severity

Important

Notes

Topic: An update is now available for Red Hat JBoss Fuse 6.3 and Red Hat JBoss A-MQ 6.3. 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: Red Hat Fuse provides a small-footprint, flexible, open source enterprise service bus and integration platform. Red Hat A-MQ is a standards compliant messaging system that is tailored for use in mission critical applications. This patch is an update to Red Hat Fuse 6.3 and Red Hat A-MQ 6.3. It includes bug fixes, which are documented in the patch notes accompanying the package on the download page. See the download link given in the references section below. Security fix(es): * shiro-core: shiro: specially crafted HTTP request may cause an authentication bypass [amq-6.3.0] (CVE-2020-13933) * xstream: remote code execution due to insecure XML deserialization when relying on blocklists [amq-6.3.0] (CVE-2020-26217) * xstream: remote code execution due to insecure XML deserialization when relying on blocklists [fuse-6.3.0] (CVE-2020-26217) * broker: activemq: LDAP authentication bypass with anonymous bind [amq-6.3.0] (CVE-2021-26117) For more details about the security issue(s), including the impact, a CVSS score, 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.

CVE-2020-13933

A flaw was found in Apache Shiro in versions prior to 1.6.0. A specially crafted HTTP request may cause an authentication bypass. The highest threat from this vulnerability is to data confidentiality.

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE-287 - Improper Authentication

Affected products

Fixed 1 product

Product	Identifier	Version	Remediation
Red Hat Fuse/AMQ 6.3.18 Red Hat / Red Hat JBoss Fuse	`cpe:/a:redhat:jboss_fuse:6.3`	—	Vendor Fix fix Workaround

Threats

Impact Moderate

CVE-2020-26217

A flaw was found in xstream. An unsafe deserialization of user-supplied XML, in conjunction with relying on the default deny list, allows a remote attacker to perform a variety of attacks including a remote code execution of arbitrary code in the context of the JVM running the XStream application. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

9.0 (Critical)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

CWE-502 - Deserialization of Untrusted Data

Affected products

Fixed 1 product

Product	Identifier	Version	Remediation
Red Hat Fuse/AMQ 6.3.18 Red Hat / Red Hat JBoss Fuse	`cpe:/a:redhat:jboss_fuse:6.3`	—	Vendor Fix fix Workaround

Threats

Impact Moderate

CVE-2021-26117

A flaw was found in activemq. When anonymous binds are enabled on the LDAP provider (zero length DN/password) and the LDAP module is configured to make use of these, client credentials are not correctly verified and authentication is effectively bypassed. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

8.1 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-287 - Improper Authentication

Affected products

Fixed 1 product

Product	Identifier	Version	Remediation
Red Hat Fuse/AMQ 6.3.18 Red Hat / Red Hat JBoss Fuse	`cpe:/a:redhat:jboss_fuse:6.3`	—	Vendor Fix fix Workaround

Threats

Impact Important

References

20 references

URL	Category
https://access.redhat.com/errata/RHSA-2021:0384	self
https://access.redhat.com/security/updates/classi…	external
https://access.redhat.com/jbossnetwork/restricted…	external
https://access.redhat.com/jbossnetwork/restricted…	external
https://bugzilla.redhat.com/show_bug.cgi?id=1869860	external
https://bugzilla.redhat.com/show_bug.cgi?id=1898907	external
https://bugzilla.redhat.com/show_bug.cgi?id=1921126	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2020-13933	self
https://bugzilla.redhat.com/show_bug.cgi?id=1869860	external
https://www.cve.org/CVERecord?id=CVE-2020-13933	external
https://nvd.nist.gov/vuln/detail/CVE-2020-13933	external
https://access.redhat.com/security/cve/CVE-2020-26217	self
https://bugzilla.redhat.com/show_bug.cgi?id=1898907	external
https://www.cve.org/CVERecord?id=CVE-2020-26217	external
https://nvd.nist.gov/vuln/detail/CVE-2020-26217	external
https://access.redhat.com/security/cve/CVE-2021-26117	self
https://bugzilla.redhat.com/show_bug.cgi?id=1921126	external
https://www.cve.org/CVERecord?id=CVE-2021-26117	external
https://nvd.nist.gov/vuln/detail/CVE-2021-26117	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
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      "text": "Important"
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      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
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    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "An update is now available for Red Hat JBoss Fuse 6.3 and Red Hat JBoss A-MQ 6.3.\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": "Red Hat Fuse provides a small-footprint, flexible, open source enterprise service bus and integration platform. Red Hat A-MQ is a standards compliant messaging system that is tailored for use in mission critical applications.\n\nThis patch is an update to Red Hat Fuse 6.3 and Red Hat A-MQ 6.3. It includes bug fixes, which are documented in the patch notes accompanying the package on the download page. See the download link given in the references section below.\n\nSecurity fix(es):\n\n* shiro-core: shiro: specially crafted HTTP request may cause an authentication bypass [amq-6.3.0] (CVE-2020-13933)\n\n* xstream: remote code execution due to insecure XML deserialization when relying on blocklists [amq-6.3.0] (CVE-2020-26217)\n\n* xstream: remote code execution due to insecure XML deserialization when relying on blocklists [fuse-6.3.0] (CVE-2020-26217)\n\n* broker: activemq: LDAP authentication bypass with anonymous bind [amq-6.3.0] (CVE-2021-26117)\n\nFor more details about the security issue(s), including the impact, a CVSS score, 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"
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        "summary": "https://access.redhat.com/errata/RHSA-2021:0384",
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        "summary": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=jboss.amq.broker\u0026downloadType=securityPatches\u0026version=6.3.0",
        "url": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=jboss.amq.broker\u0026downloadType=securityPatches\u0026version=6.3.0"
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    ],
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    "tracking": {
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          "number": "3",
          "summary": "Last generated version"
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  "vulnerabilities": [
    {
      "cve": "CVE-2020-13933",
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        "id": "CWE-287",
        "name": "Improper Authentication"
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      "discovery_date": "2020-08-17T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1869860"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Apache Shiro in versions prior to 1.6.0. A specially crafted HTTP request may cause an authentication bypass. The highest threat from this vulnerability is to data confidentiality.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "shiro: specially crafted HTTP request may cause an authentication bypass",
          "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"
        }
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          "details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nInstallation instructions are located in the download section of the customer portal.\n\nThe References section of this erratum contains a download link (you must log in to download the update).",
          "product_ids": [
            "Red Hat Fuse/AMQ 6.3.18"
          ],
          "restart_required": {
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          },
          "url": "https://access.redhat.com/errata/RHSA-2021:0384"
        },
        {
          "category": "workaround",
          "details": "There is currently no known mitigation for this issue.",
          "product_ids": [
            "Red Hat Fuse/AMQ 6.3.18"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "Red Hat Fuse/AMQ 6.3.18"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "shiro: specially crafted HTTP request may cause an authentication bypass"
    },
    {
      "cve": "CVE-2020-26217",
      "cwe": {
        "id": "CWE-502",
        "name": "Deserialization of Untrusted Data"
      },
      "discovery_date": "2020-11-18T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1898907"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in xstream. An unsafe deserialization of user-supplied XML, in conjunction with relying on the default deny list, allows a remote attacker to perform a variety of attacks including a remote code execution of arbitrary code in the context of the JVM running the XStream application. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "XStream: remote code execution due to insecure XML deserialization when relying on blocklists",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "OpenShift Container Platform (OCP) delivers jenkins package with bundled XStream library. Due to JEP-200 Jenkins project [1] and advisory SECURITY-383 [2], OCP jenkins package is not affected by this flaw.\n\n[1] https://github.com/jenkinsci/jep/blob/master/jep/200/README.adoc\n[2] https://www.jenkins.io/security/advisory/2017-02-01/  (see SECURITY-383 / CVE-2017-2608)",
          "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": [
          "Red Hat Fuse/AMQ 6.3.18"
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      "references": [
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          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2020-26217"
        },
        {
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          "summary": "RHBZ#1898907",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1898907"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2020-26217",
          "url": "https://www.cve.org/CVERecord?id=CVE-2020-26217"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-26217",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26217"
        }
      ],
      "release_date": "2020-11-16T19:40:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-02-02T14:23:19+00:00",
          "details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nInstallation instructions are located in the download section of the customer portal.\n\nThe References section of this erratum contains a download link (you must log in to download the update).",
          "product_ids": [
            "Red Hat Fuse/AMQ 6.3.18"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2021:0384"
        },
        {
          "category": "workaround",
          "details": "Depending on the version of XStream used there are various usage patterns that mitigate this flaw, though we would strongly recommend using the allow list approach if at all possible as there are likely more class combinations the deny list approach may not address.\n\nAllow list approach\n```java\nXStream xstream = new XStream();\nXStream.setupDefaultSecurity(xstream);\nxstream.allowTypesByWildcard(new String[] {\"com.misc.classname\"})\n```\n\nDeny list for XStream 1.4.13\n```java\nxstream.denyTypes(new String[]{ \"javax.imageio.ImageIO$ContainsFilter\" });\nxstream.denyTypes(new Class[]{ java.lang.ProcessBuilder.class });\n```\n\nDeny list for XStream 1.4.7 -\u003e 1.4.12\n```java\nxstream.denyTypes(new String[]{ \"javax.imageio.ImageIO$ContainsFilter\" });\nxstream.denyTypes(new Class[]{ java.lang.ProcessBuilder.class, java.beans.EventHandler.class, java.lang.ProcessBuilder.class, java.lang.Void.class, void.class });\n```\n\nDeny list for versions prior to XStream 1.4.7\n```java\nxstream.registerConverter(new Converter() {\n  public boolean canConvert(Class type) {\n    return type != null \u0026\u0026 (type == java.beans.EventHandler.class || type == java.lang.ProcessBuilder.class || type == java.lang.Void.class || void.class || type.getName().equals(\"javax.imageio.ImageIO$ContainsFilter\") || Proxy.isProxy(type));\n  }\n\n  public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {\n    throw new ConversionException(\"Unsupported type due to security reasons.\");\n  }\n\n  public void marshal(Object source, HierarchicalStreamWriter writer, MarshallingContext context) {\n    throw new ConversionException(\"Unsupported type due to security reasons.\");\n  }\n}, XStream.PRIORITY_LOW);\n```",
          "product_ids": [
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          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
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            "baseScore": 9.0,
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
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      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "XStream: remote code execution due to insecure XML deserialization when relying on blocklists"
    },
    {
      "cve": "CVE-2021-26117",
      "cwe": {
        "id": "CWE-287",
        "name": "Improper Authentication"
      },
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      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1921126"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in activemq. When anonymous binds are enabled on the LDAP provider (zero length DN/password) and the LDAP module is configured to make use of these, client credentials are not correctly verified and authentication is effectively bypassed. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "activemq: LDAP authentication bypass with anonymous bind",
          "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": [
          "Red Hat Fuse/AMQ 6.3.18"
        ]
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      "references": [
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          "url": "https://access.redhat.com/security/cve/CVE-2021-26117"
        },
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          "category": "external",
          "summary": "RHBZ#1921126",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1921126"
        },
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          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-26117",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-26117"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-26117",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26117"
        }
      ],
      "release_date": "2020-09-07T15:15:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-02-02T14:23:19+00:00",
          "details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nInstallation instructions are located in the download section of the customer portal.\n\nThe References section of this erratum contains a download link (you must log in to download the update).",
          "product_ids": [
            "Red Hat Fuse/AMQ 6.3.18"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2021:0384"
        },
        {
          "category": "workaround",
          "details": "There is currently no known mitigation for this issue.",
          "product_ids": [
            "Red Hat Fuse/AMQ 6.3.18"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Fuse/AMQ 6.3.18"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "activemq: LDAP authentication bypass with anonymous bind"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2020-13933 (GCVE-0-2020-13933)

RHSA-2021_0384

Tags

Sightings

Nomenclature