CVE-2022-35929

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.
Configurations

Configuration 1 (hide)

cpe:2.3:a:sigstore:cosign:*:*:*:*:*:*:*:*

History

10 Aug 2022, 18:38

Type Values Removed Values Added
CPE cpe:2.3:a:sigstore:cosign:*:*:*:*:*:*:*:*
First Time Sigstore cosign
Sigstore
References (MISC) https://github.com/sigstore/cosign/commit/c5fda01a8ff33ca981f45a9f13e7fb6bd2080b94 - (MISC) https://github.com/sigstore/cosign/commit/c5fda01a8ff33ca981f45a9f13e7fb6bd2080b94 - Exploit, Patch, Third Party Advisory
References (CONFIRM) https://github.com/sigstore/cosign/security/advisories/GHSA-vjxv-45g9-9296 - (CONFIRM) https://github.com/sigstore/cosign/security/advisories/GHSA-vjxv-45g9-9296 - Exploit, Third Party Advisory
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 9.8

04 Aug 2022, 19:15

Type Values Removed Values Added
New CVE

Information

Published : 2022-08-04 19:15

Updated : 2023-12-10 14:35


NVD link : CVE-2022-35929

Mitre link : CVE-2022-35929

CVE.ORG link : CVE-2022-35929


JSON object : View

Products Affected

sigstore

  • cosign
CWE
CWE-347

Improper Verification of Cryptographic Signature