gsd-2020-16844
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
In Istio 1.5.0 though 1.5.8 and Istio 1.6.0 through 1.6.7, when users specify an AuthorizationPolicy resource with DENY actions using wildcard suffixes (e.g. *-some-suffix) for source principals or namespace fields, callers will never be denied access, bypassing the intended policy.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-16844",
"description": "In Istio 1.5.0 though 1.5.8 and Istio 1.6.0 through 1.6.7, when users specify an AuthorizationPolicy resource with DENY actions using wildcard suffixes (e.g. *-some-suffix) for source principals or namespace fields, callers will never be denied access, bypassing the intended policy.",
"id": "GSD-2020-16844",
"references": [
"https://access.redhat.com/errata/RHSA-2020:3425"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2020-16844"
],
"details": "In Istio 1.5.0 though 1.5.8 and Istio 1.6.0 through 1.6.7, when users specify an AuthorizationPolicy resource with DENY actions using wildcard suffixes (e.g. *-some-suffix) for source principals or namespace fields, callers will never be denied access, bypassing the intended policy.",
"id": "GSD-2020-16844",
"modified": "2023-12-13T01:21:46.337637Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2020-16844",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
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{
"lang": "eng",
"value": "In Istio 1.5.0 though 1.5.8 and Istio 1.6.0 through 1.6.7, when users specify an AuthorizationPolicy resource with DENY actions using wildcard suffixes (e.g. *-some-suffix) for source principals or namespace fields, callers will never be denied access, bypassing the intended policy."
}
]
},
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},
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"reference_data": [
{
"name": "https://github.com/istio/istio/releases",
"refsource": "MISC",
"url": "https://github.com/istio/istio/releases"
},
{
"name": "https://istio.io/latest/news/security/istio-security-2020-009/",
"refsource": "CONFIRM",
"url": "https://istio.io/latest/news/security/istio-security-2020-009/"
}
]
}
},
"gitlab.com": {
"advisories": [
{
"affected_range": "\u003e=v1.5.0 \u003c=v1.5.8 || \u003e=v1.6.0 \u003c=v1.6.7",
"affected_versions": "All versions starting from 1.5.0 up to 1.5.8, all versions starting from 1.6.0 up to 1.6.7",
"cvss_v2": "AV:N/AC:M/Au:S/C:P/I:P/A:N",
"cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2020-10-15",
"description": "In Istio, when users specify an AuthorizationPolicy resource with DENY actions using wildcard suffixes (`e.g.`, `*-some-suffix`) for source principals or namespace fields, callers will never be denied access, bypassing the intended policy.",
"fixed_versions": [
"v1.6.8"
],
"identifier": "CVE-2020-16844",
"identifiers": [
"CVE-2020-16844"
],
"not_impacted": "All versions after 1.5.8 before 1.6.0, all versions after 1.6.7",
"package_slug": "go/github.com/istio/istio",
"pubdate": "2020-10-01",
"solution": "Upgrade to version 1.6.8 or above.",
"title": "Improper Authentication",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2020-16844",
"https://github.com/istio/istio/releases",
"https://istio.io/latest/news/security/istio-security-2020-009/"
],
"uuid": "9fd7629a-5786-4241-84ce-2bc05cc46018",
"versions": [
{
"commit": {
"sha": "0aa646d7e3061ebbe650817dda4b393682ba2782",
"tags": [
"1.5.0"
],
"timestamp": "20200304114959"
},
"number": "v1.5.0"
},
{
"commit": {
"sha": "32eafc7f3e112f66d7ab362c54b4854c2ed3b61a",
"tags": [
"1.6.0"
],
"timestamp": "20200518170651"
},
"number": "v1.6.0"
},
{
"commit": {
"sha": "523820ea359b4e3db0259ab5c33a0258044ae9cd",
"tags": [
"1.5.8"
],
"timestamp": "20200708165503"
},
"number": "v1.5.8"
},
{
"commit": {
"sha": "3930ead45c631342abd462f09648f4144eacf32c",
"tags": [
"1.6.7"
],
"timestamp": "20200730204136"
},
"number": "v1.6.7"
}
]
},
{
"affected_range": "\u003e=1.5.0 \u003c1.5.9||\u003e=1.6.0 \u003c1.6.8",
"affected_versions": "All versions starting from 1.5.0 before 1.5.9, all versions starting from 1.6.0 before 1.6.8",
"cvss_v2": "AV:N/AC:M/Au:S/C:P/I:P/A:N",
"cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2022-04-20",
"description": "In Istio 1.5.0 though 1.5.8 and Istio 1.6.0 through 1.6.7, when users specify an AuthorizationPolicy resource with DENY actions using wildcard suffixes (e.g. *-some-suffix) for source principals or namespace fields, callers will never be denied access, bypassing the intended policy.",
"fixed_versions": [
"1.5.9",
"1.6.8"
],
"identifier": "CVE-2020-16844",
"identifiers": [
"GHSA-82mm-ffjr-h86c",
"CVE-2020-16844"
],
"not_impacted": "All versions before 1.5.0, all versions starting from 1.5.9 before 1.6.0, all versions starting from 1.6.8",
"package_slug": "go/istio.io/istio",
"pubdate": "2022-02-15",
"solution": "Upgrade to versions 1.5.9, 1.6.8 or above.",
"title": "Authorization bypass in Istio",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2020-16844",
"https://github.com/istio/istio/commit/4c73414556b83f0e75c1b3a0a89a23103a71573c",
"https://github.com/istio/istio/commit/72d2e135374f421b656d6f1a21f474db46134ace",
"https://github.com/istio/istio/releases",
"https://github.com/istio/istio/releases/tag/1.5.9",
"https://github.com/istio/istio/releases/tag/1.6.8",
"https://istio.io/latest/news/releases/1.5.x/announcing-1.5.9/",
"https://istio.io/latest/news/releases/1.6.x/announcing-1.6.8/",
"https://istio.io/latest/news/security/istio-security-2020-009/",
"https://github.com/advisories/GHSA-82mm-ffjr-h86c"
],
"uuid": "fac520b4-40c1-4e4c-acb0-b558875959bb"
},
{
"affected_range": "\u003e=1.5.0 \u003c1.5.9||\u003e=1.6.0 \u003c1.6.8",
"affected_versions": "All versions starting from 1.5.0 before 1.5.9, all versions starting from 1.6.0 before 1.6.8",
"cvss_v2": "AV:N/AC:M/Au:S/C:P/I:P/A:N",
"cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2022-04-20",
"description": "In Istio 1.5.0 though 1.5.8 and Istio 1.6.0 through 1.6.7, when users specify an AuthorizationPolicy resource with DENY actions using wildcard suffixes (e.g. *-some-suffix) for source principals or namespace fields, callers will never be denied access, bypassing the intended policy.",
"fixed_versions": [
"1.5.9",
"1.6.8"
],
"identifier": "CVE-2020-16844",
"identifiers": [
"GHSA-82mm-ffjr-h86c",
"CVE-2020-16844"
],
"not_impacted": "All versions before 1.5.0, all versions starting from 1.5.9 before 1.6.0, all versions starting from 1.6.8",
"package_slug": "go/istio.io/istio/pilot/pkg/security/authz/model/matcher",
"pubdate": "2022-02-15",
"solution": "Upgrade to versions 1.5.9, 1.6.8 or above.",
"title": "Authorization bypass in Istio",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2020-16844",
"https://github.com/istio/istio/commit/4c73414556b83f0e75c1b3a0a89a23103a71573c",
"https://github.com/istio/istio/commit/72d2e135374f421b656d6f1a21f474db46134ace",
"https://github.com/istio/istio/releases",
"https://github.com/istio/istio/releases/tag/1.5.9",
"https://github.com/istio/istio/releases/tag/1.6.8",
"https://istio.io/latest/news/releases/1.5.x/announcing-1.5.9/",
"https://istio.io/latest/news/releases/1.6.x/announcing-1.6.8/",
"https://istio.io/latest/news/security/istio-security-2020-009/",
"https://github.com/advisories/GHSA-82mm-ffjr-h86c"
],
"uuid": "90fd42be-30c3-40ca-b63f-de53a9c19e74"
}
]
},
"nvd.nist.gov": {
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"cpe23Uri": "cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "1.5.8",
"versionStartIncluding": "1.5.0",
"vulnerable": true
},
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"cpe23Uri": "cpe:2.3:a:istio:istio:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "1.6.7",
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}
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"references": {
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},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "NONE",
"baseScore": 4.9,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:N",
"version": "2.0"
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"exploitabilityScore": 6.8,
"impactScore": 4.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
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"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
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"exploitabilityScore": 1.6,
"impactScore": 5.2
}
},
"lastModifiedDate": "2020-10-15T17:31Z",
"publishedDate": "2020-10-01T17:15Z"
}
}
}
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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.
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- 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.