FKIE_CVE-2023-35941
Vulnerability from fkie_nvd - Published: 2023-07-25 18:15 - Updated: 2024-11-21 08:09
Severity ?
8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, a malicious client is able to construct credentials with permanent validity in some specific scenarios. This is caused by the some rare scenarios in which HMAC payload can be always valid in OAuth2 filter's check. Versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12 have a fix for this issue. As a workaround, avoid wildcards/prefix domain wildcards in the host's domain configuration.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| envoyproxy | envoy | * | |
| envoyproxy | envoy | * | |
| envoyproxy | envoy | * | |
| envoyproxy | envoy | * |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
"matchCriteriaId": "588736F6-2FDC-4CF7-AFFA-7CFE16ED6EC6",
"versionEndExcluding": "1.23.12",
"versionStartIncluding": "1.23.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
"matchCriteriaId": "D8412E60-1C2F-4764-94F5-563FAA297466",
"versionEndExcluding": "1.24.10",
"versionStartIncluding": "1.24.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0EC8FEB8-BB13-443C-8905-30B03F8F52E6",
"versionEndExcluding": "1.25.9",
"versionStartIncluding": "1.25.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*",
"matchCriteriaId": "DA35F763-2810-4231-B5A9-93310BF7B765",
"versionEndExcluding": "1.26.4",
"versionStartIncluding": "1.26.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, a malicious client is able to construct credentials with permanent validity in some specific scenarios. This is caused by the some rare scenarios in which HMAC payload can be always valid in OAuth2 filter\u0027s check. Versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12 have a fix for this issue. As a workaround, avoid wildcards/prefix domain wildcards in the host\u0027s domain configuration."
}
],
"id": "CVE-2023-35941",
"lastModified": "2024-11-21T08:09:01.300",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 4.7,
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2023-07-25T18:15:10.993",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-7mhv-gr67-hq55"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-7mhv-gr67-hq55"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-116"
}
],
"source": "security-advisories@github.com",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
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.
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