gsd-2023-23934
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
Werkzeug is a comprehensive WSGI web application library. Browsers may allow "nameless" cookies that look like `=value` instead of `key=value`. A vulnerable browser may allow a compromised application on an adjacent subdomain to exploit this to set a cookie like `=__Host-test=bad` for another subdomain. Werkzeug prior to 2.2.3 will parse the cookie `=__Host-test=bad` as __Host-test=bad`. If a Werkzeug application is running next to a vulnerable or malicious subdomain which sets such a cookie using a vulnerable browser, the Werkzeug application will see the bad cookie value but the valid cookie key. The issue is fixed in Werkzeug 2.2.3.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2023-23934", "id": "GSD-2023-23934", "references": [ "https://access.redhat.com/errata/RHSA-2023:1018", "https://www.suse.com/security/cve/CVE-2023-23934.html", "https://ubuntu.com/security/CVE-2023-23934" ] }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2023-23934" ], "details": "Werkzeug is a comprehensive WSGI web application library. Browsers may allow \"nameless\" cookies that look like `=value` instead of `key=value`. A vulnerable browser may allow a compromised application on an adjacent subdomain to exploit this to set a cookie like `=__Host-test=bad` for another subdomain. Werkzeug prior to 2.2.3 will parse the cookie `=__Host-test=bad` as __Host-test=bad`. If a Werkzeug application is running next to a vulnerable or malicious subdomain which sets such a cookie using a vulnerable browser, the Werkzeug application will see the bad cookie value but the valid cookie key. The issue is fixed in Werkzeug 2.2.3.", "id": "GSD-2023-23934", "modified": "2023-12-13T01:20:50.283016Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2023-23934", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "werkzeug", "version": { "version_data": [ { "version_affected": "=", "version_value": "\u003c 2.2.3" } ] } } ] }, "vendor_name": "pallets" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "Werkzeug is a comprehensive WSGI web application library. Browsers may allow \"nameless\" cookies that look like `=value` instead of `key=value`. A vulnerable browser may allow a compromised application on an adjacent subdomain to exploit this to set a cookie like `=__Host-test=bad` for another subdomain. Werkzeug prior to 2.2.3 will parse the cookie `=__Host-test=bad` as __Host-test=bad`. If a Werkzeug application is running next to a vulnerable or malicious subdomain which sets such a cookie using a vulnerable browser, the Werkzeug application will see the bad cookie value but the valid cookie key. The issue is fixed in Werkzeug 2.2.3." } ] }, "impact": { "cvss": [ { "attackComplexity": "HIGH", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "NONE", "baseScore": 2.6, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N", "version": "3.1" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "cweId": "CWE-20", "lang": "eng", "value": "CWE-20: Improper Input Validation" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/pallets/werkzeug/security/advisories/GHSA-px8h-6qxv-m22q", "refsource": "MISC", "url": "https://github.com/pallets/werkzeug/security/advisories/GHSA-px8h-6qxv-m22q" }, { "name": "https://github.com/pallets/werkzeug/commit/cf275f42acad1b5950c50ffe8ef58fe62cdce028", "refsource": "MISC", "url": "https://github.com/pallets/werkzeug/commit/cf275f42acad1b5950c50ffe8ef58fe62cdce028" }, { "name": "https://github.com/pallets/werkzeug/releases/tag/2.2.3", "refsource": "MISC", "url": "https://github.com/pallets/werkzeug/releases/tag/2.2.3" }, { "name": "https://www.debian.org/security/2023/dsa-5470", "refsource": "MISC", "url": "https://www.debian.org/security/2023/dsa-5470" }, { "name": "https://security.netapp.com/advisory/ntap-20230818-0003/", "refsource": "MISC", "url": "https://security.netapp.com/advisory/ntap-20230818-0003/" } ] }, "source": { "advisory": "GHSA-px8h-6qxv-m22q", "discovery": "UNKNOWN" } }, "gitlab.com": { "advisories": [ { "affected_range": "\u003c2.2.3", "affected_versions": "All versions before 2.2.3", "cvss_v3": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "cwe_ids": [ "CWE-1035", "CWE-20", "CWE-937" ], "date": "2023-08-18", "description": "Werkzeug is a comprehensive WSGI web application library. Browsers may allow \"nameless\" cookies that look like `=value` instead of `key=value`. A vulnerable browser may allow a compromised application on an adjacent subdomain to exploit this to set a cookie like `=__Host-test=bad` for another subdomain. Werkzeug prior to 2.2.3 will parse the cookie `=__Host-test=bad` as __Host-test=bad`. If a Werkzeug application is running next to a vulnerable or malicious subdomain which sets such a cookie using a vulnerable browser, the Werkzeug application will see the bad cookie value but the valid cookie key. The issue is fixed in Werkzeug 2.2.3.", "fixed_versions": [ "2.2.3" ], "identifier": "CVE-2023-23934", "identifiers": [ "CVE-2023-23934", "GHSA-px8h-6qxv-m22q" ], "not_impacted": "All versions starting from 2.2.3", "package_slug": "pypi/Werkzeug", "pubdate": "2023-02-14", "solution": "Upgrade to version 2.2.3 or above.", "title": "Incorrect parsing of nameless cookies leads to __Host- cookies bypass", "urls": [ "https://github.com/pallets/werkzeug/security/advisories/GHSA-px8h-6qxv-m22q", "https://nvd.nist.gov/vuln/detail/CVE-2023-23934", "https://github.com/pallets/werkzeug/commit/cf275f42acad1b5950c50ffe8ef58fe62cdce028", "https://github.com/pallets/werkzeug/releases/tag/2.2.3", "https://github.com/advisories/GHSA-px8h-6qxv-m22q" ], "uuid": "bf7afccb-1205-4b3f-b647-08dbebccbfe2" } ] }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:a:palletsprojects:werkzeug:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "2.2.3", "vulnerable": true } ], "operator": "OR" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2023-23934" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "Werkzeug is a comprehensive WSGI web application library. Browsers may allow \"nameless\" cookies that look like `=value` instead of `key=value`. A vulnerable browser may allow a compromised application on an adjacent subdomain to exploit this to set a cookie like `=__Host-test=bad` for another subdomain. Werkzeug prior to 2.2.3 will parse the cookie `=__Host-test=bad` as __Host-test=bad`. If a Werkzeug application is running next to a vulnerable or malicious subdomain which sets such a cookie using a vulnerable browser, the Werkzeug application will see the bad cookie value but the valid cookie key. The issue is fixed in Werkzeug 2.2.3." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-20" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/pallets/werkzeug/security/advisories/GHSA-px8h-6qxv-m22q", "refsource": "MISC", "tags": [ "Vendor Advisory" ], "url": "https://github.com/pallets/werkzeug/security/advisories/GHSA-px8h-6qxv-m22q" }, { "name": "https://github.com/pallets/werkzeug/commit/cf275f42acad1b5950c50ffe8ef58fe62cdce028", "refsource": "MISC", "tags": [ "Patch" ], "url": "https://github.com/pallets/werkzeug/commit/cf275f42acad1b5950c50ffe8ef58fe62cdce028" }, { "name": "https://github.com/pallets/werkzeug/releases/tag/2.2.3", "refsource": "MISC", "tags": [ "Release Notes" ], "url": "https://github.com/pallets/werkzeug/releases/tag/2.2.3" }, { "name": "https://www.debian.org/security/2023/dsa-5470", "refsource": "MISC", "tags": [], "url": "https://www.debian.org/security/2023/dsa-5470" }, { "name": "https://security.netapp.com/advisory/ntap-20230818-0003/", "refsource": "MISC", "tags": [], "url": "https://security.netapp.com/advisory/ntap-20230818-0003/" } ] } }, "impact": { "baseMetricV3": { "cvssV3": { "attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "NONE", "baseScore": 3.5, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "version": "3.1" }, "exploitabilityScore": 2.1, "impactScore": 1.4 } }, "lastModifiedDate": "2023-08-18T14:15Z", "publishedDate": "2023-02-14T20:15Z" } } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- 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.