cve-2022-35929
Vulnerability from cvelistv5
Published
2022-08-04 18:45
Modified
2024-08-03 09:51
Severity ?
EPSS score ?
Summary
False positive signature verification in cosign
References
▼ | URL | Tags | |
---|---|---|---|
security-advisories@github.com | https://github.com/sigstore/cosign/commit/c5fda01a8ff33ca981f45a9f13e7fb6bd2080b94 | Exploit, Patch, Third Party Advisory | |
security-advisories@github.com | https://github.com/sigstore/cosign/security/advisories/GHSA-vjxv-45g9-9296 | Exploit, Third Party Advisory |
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In versions prior to 1.10.1 cosign can report a false positive if any attestation exists. `cosign verify-attestation` used with the `--type` flag will report a false positive verification when there is at least one attestation with a valid signature and there are NO attestations of the type being verified (--type defaults to \"custom\"). This can happen when signing with a standard keypair and with \"keyless\" signing with Fulcio. This vulnerability can be reproduced with the `distroless.dev/static@sha256:dd7614b5a12bc4d617b223c588b4e0c833402b8f4991fb5702ea83afad1986e2` image. This image has a `vuln` attestation but not an `spdx` attestation. However, if you run `cosign verify-attestation --type=spdx` on this image, it incorrectly succeeds. This issue has been addressed in version 1.10.1 of cosign. Users are advised to upgrade. There are no known workarounds for this issue." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-347", "description": "CWE-347: Improper Verification of Cryptographic Signature", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2022-08-04T18:45:14", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M" }, "references": [ { "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/sigstore/cosign/security/advisories/GHSA-vjxv-45g9-9296" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/sigstore/cosign/commit/c5fda01a8ff33ca981f45a9f13e7fb6bd2080b94" } ], "source": { "advisory": "GHSA-vjxv-45g9-9296", "discovery": "UNKNOWN" }, "title": "False positive signature verification in cosign", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2022-35929", "STATE": "PUBLIC", "TITLE": "False positive signature verification in cosign" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "cosign", "version": { "version_data": [ { "version_value": "\u003c 1.10.1" } ] } } ] }, "vendor_name": "sigstore" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "cosign is a container signing and verification utility. In versions prior to 1.10.1 cosign can report a false positive if any attestation exists. `cosign verify-attestation` used with the `--type` flag will report a false positive verification when there is at least one attestation with a valid signature and there are NO attestations of the type being verified (--type defaults to \"custom\"). This can happen when signing with a standard keypair and with \"keyless\" signing with Fulcio. This vulnerability can be reproduced with the `distroless.dev/static@sha256:dd7614b5a12bc4d617b223c588b4e0c833402b8f4991fb5702ea83afad1986e2` image. This image has a `vuln` attestation but not an `spdx` attestation. However, if you run `cosign verify-attestation --type=spdx` on this image, it incorrectly succeeds. This issue has been addressed in version 1.10.1 of cosign. Users are advised to upgrade. There are no known workarounds for this issue." } ] }, "impact": { "cvss": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-347: Improper Verification of Cryptographic Signature" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/sigstore/cosign/security/advisories/GHSA-vjxv-45g9-9296", "refsource": "CONFIRM", "url": "https://github.com/sigstore/cosign/security/advisories/GHSA-vjxv-45g9-9296" }, { "name": "https://github.com/sigstore/cosign/commit/c5fda01a8ff33ca981f45a9f13e7fb6bd2080b94", "refsource": "MISC", "url": "https://github.com/sigstore/cosign/commit/c5fda01a8ff33ca981f45a9f13e7fb6bd2080b94" } ] }, "source": { "advisory": "GHSA-vjxv-45g9-9296", "discovery": "UNKNOWN" } } } }, "cveMetadata": { "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2022-35929", "datePublished": "2022-08-04T18:45:14", "dateReserved": "2022-07-15T00:00:00", "dateUpdated": "2024-08-03T09:51:59.114Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2022-35929\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2022-08-04T19:15:09.937\",\"lastModified\":\"2022-08-10T18:38:44.947\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"cosign is a container signing and verification utility. In versions prior to 1.10.1 cosign can report a false positive if any attestation exists. `cosign verify-attestation` used with the `--type` flag will report a false positive verification when there is at least one attestation with a valid signature and there are NO attestations of the type being verified (--type defaults to \\\"custom\\\"). This can happen when signing with a standard keypair and with \\\"keyless\\\" signing with Fulcio. This vulnerability can be reproduced with the `distroless.dev/static@sha256:dd7614b5a12bc4d617b223c588b4e0c833402b8f4991fb5702ea83afad1986e2` image. This image has a `vuln` attestation but not an `spdx` attestation. However, if you run `cosign verify-attestation --type=spdx` on this image, it incorrectly succeeds. This issue has been addressed in version 1.10.1 of cosign. Users are advised to upgrade. There are no known workarounds for this issue.\"},{\"lang\":\"es\",\"value\":\"cosign es una utilidad de firma y verificaci\u00f3n de contenedores. En versiones anteriores a 1.10.1 cosign puede reportar un falso positivo si se presenta alguna atestaci\u00f3n. Si es usado \\\"cosign verify-attestation\\\" con el indicador \\\"--type\\\", ser\u00e1 informado de un falso positivo en la verificaci\u00f3n cuando haya al menos un certificado con una firma v\u00e1lida y NO haya certificados del tipo que est\u00e1 siendo verificado (--type es, por defecto, \\\"custom\\\"). Esto puede ocurrir cuando es firmado con un par de claves est\u00e1ndar y con la firma \\\"keyless\\\" con Fulcio. Esta vulnerabilidad puede reproducirse con la imagen \\\"distroless.dev/static@sha256:dd7614b5a12bc4d617b223c588b4e0c833402b8f4991fb5702ea83afad1986e2\\\". Esta imagen presenta una certificaci\u00f3n \\\"vuln\\\" pero no una certificaci\u00f3n \\\"spdx\\\". Sin embargo, si es ejecutado \\\"cosign verify-attestation --type=spdx\\\" en esta imagen, el resultado es incorrecto. Este problema ha sido abordado en versi\u00f3n 1.10.1 de cosign. Es recomendado a usuarios actualizar. No se presentan mitigaciones conocidas para este problema\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9},{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":1.2,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-347\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:sigstore:cosign:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"1.10.1\",\"matchCriteriaId\":\"6FAFBB9B-E4B0-4C98-8A24-52F23931A39E\"}]}]}],\"references\":[{\"url\":\"https://github.com/sigstore/cosign/commit/c5fda01a8ff33ca981f45a9f13e7fb6bd2080b94\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Exploit\",\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/sigstore/cosign/security/advisories/GHSA-vjxv-45g9-9296\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]}]}}" } }
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- 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.
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- 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.