Vulnerability Description
Gitsign is software for keyless Git signing using Sigstore. In versions of gitsign starting with 0.6.0 and prior to 0.8.0, Rekor public keys were fetched via the Rekor API, instead of through the local TUF client. If the upstream Rekor server happened to be compromised, gitsign clients could potentially be tricked into trusting incorrect signatures. There is no known compromise the default public good instance (`rekor.sigstore.dev`) - anyone using this instance is unaffected. This issue was fixed in v0.8.0. No known workarounds are available.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Sigstore | Gitsign | >= 0.6.0, < 0.8.0 |
Related Weaknesses (CWE)
References
- https://docs.sigstore.dev/about/threat-model/#sigstore-threat-modelProduct
- https://github.com/sigstore/gitsign/commit/cd66ccb03c86a3600955f0c15f6bfeb75f697Patch
- https://github.com/sigstore/gitsign/pull/399Patch
- https://github.com/sigstore/gitsign/security/advisories/GHSA-xvrc-2wvh-49vcPatchVendor Advisory
- https://docs.sigstore.dev/about/threat-model/#sigstore-threat-modelProduct
- https://github.com/sigstore/gitsign/commit/cd66ccb03c86a3600955f0c15f6bfeb75f697Patch
- https://github.com/sigstore/gitsign/pull/399Patch
- https://github.com/sigstore/gitsign/security/advisories/GHSA-xvrc-2wvh-49vcPatchVendor Advisory
FAQ
What is CVE-2023-47122?
CVE-2023-47122 is a vulnerability with a CVSS score of 4.2 (MEDIUM). Gitsign is software for keyless Git signing using Sigstore. In versions of gitsign starting with 0.6.0 and prior to 0.8.0, Rekor public keys were fetched via the Rekor API, instead of through the loca...
How severe is CVE-2023-47122?
CVE-2023-47122 has been rated MEDIUM with a CVSS base score of 4.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-47122?
Check the references section above for vendor advisories and patch information. Affected products include: Sigstore Gitsign.