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CVE-2022-35929

7.1 · HIGH
Published Aug 4, 2022 sigstore CWE-347 EPSS 0.65% (49th pctl)

Overview

CVE-2022-35929 is a high-severity vulnerability affecting sigstore cosign. It was published on August 4, 2022 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical Description

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.

Remediation

Check the references section for vendor advisories and patches from sigstore. Update cosign to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status
sigstore cosign >= 0, < 1.10.1 Affected

Frequently Asked Questions

What is CVE-2022-35929?

CVE-2022-35929 is a high-severity vulnerability affecting sigstore cosign. It was published on August 4, 2022 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2022-35929?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-35929?

Check the references section for vendor advisories and patches from sigstore. Update cosign to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-35929?

CyberStrike's AI-powered security agents can automatically detect CVE-2022-35929 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.