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"
}
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{
"product": {
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{
"product_name": "werkzeug",
"version": {
"version_data": [
{
"version_affected": "=",
"version_value": "\u003c 2.2.3"
}
]
}
}
]
},
"vendor_name": "pallets"
}
]
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"description": {
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"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"
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"lang": "eng",
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"references": {
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"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"
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"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"
},
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"name": "https://security.netapp.com/advisory/ntap-20230818-0003/",
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"source": {
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"discovery": "UNKNOWN"
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"gitlab.com": {
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{
"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": {
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"cpe_name": [],
"versionEndExcluding": "2.2.3",
"vulnerable": true
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}
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"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 |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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.
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