gsd-2021-31920
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Istio before 1.8.6 and 1.9.x before 1.9.5 has a remotely exploitable vulnerability where an HTTP request path with multiple slashes or escaped slash characters (%2F or %5C) could potentially bypass an Istio authorization policy when path based authorization rules are used.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-31920",
"description": "Istio before 1.8.6 and 1.9.x before 1.9.5 has a remotely exploitable vulnerability where an HTTP request path with multiple slashes or escaped slash characters (%2F or %5C) could potentially bypass an Istio authorization policy when path based authorization rules are used.",
"id": "GSD-2021-31920",
"references": [
"https://access.redhat.com/errata/RHSA-2021:1540",
"https://access.redhat.com/errata/RHSA-2021:1538",
"https://security.archlinux.org/CVE-2021-31920",
"https://linux.oracle.com/cve/CVE-2021-31920.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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],
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"id": "GSD-2021-31920",
"modified": "2023-12-13T01:23:13.510341Z",
"schema_version": "1.4.0"
}
},
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"affects": {
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"url": "https://istio.io/latest/news/security/istio-security-2021-005/"
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},
"gitlab.com": {
"advisories": [
{
"affected_range": "\u003c1.8.6||\u003e=1.9.0 \u003c1.9.5",
"affected_versions": "All versions before 1.8.6, all versions starting from 1.9.0 before 1.9.5",
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"cwe_ids": [
"CWE-1035",
"CWE-706",
"CWE-937"
],
"date": "2023-07-31",
"description": "Istio has a remotely exploitable vulnerability where an HTTP request path with multiple slashes or escaped slash characters (%2F or %5C) could potentially bypass an Istio authorization policy when path based authorization rules are used.",
"fixed_versions": [
"1.8.6",
"1.9.5"
],
"identifier": "CVE-2021-31920",
"identifiers": [
"CVE-2021-31920"
],
"not_impacted": "",
"package_slug": "go/istio.io/istio",
"pubdate": "2021-05-27",
"solution": "Upgrade to versions 1.8.6, 1.9.5 or above.",
"title": "Incorrect Authorization",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2021-31920",
"https://istio.io/latest/news/security/istio-security-2021-005/"
],
"uuid": "a532e380-df21-43f4-9735-511b86e664f3"
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"tags": [
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},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "NONE",
"baseScore": 4.0,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6
}
},
"lastModifiedDate": "2021-06-07T18:56Z",
"publishedDate": "2021-05-27T05:15Z"
}
}
}
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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.
- 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.