CVE-2023-47122
Last modified
CVE-2023-47122 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. EPSS estimates a 0.37% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Sigstore | Gitsign | >= 0.6.0, < 0.8.0 |
References
- https://github.com/sigstore/gitsign/security/advisories/GHSA-xvrc-2wvh-49vcPatch, Vendor Advisory
- https://github.com/sigstore/gitsign/security/advisories/GHSA-xvrc-2wvh-49vcPatch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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