CVE-2023-47122 – github.com/sigstore/gitsign

Package

Manager: go
Name: github.com/sigstore/gitsign
Vulnerable Version: >=0.6.0 <0.8.0

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00091 pctl0.26597

Details

Gitsign's Rekor public keys fetched from upstream API instead of local TUF client. ### Impact In certain versions of gitsign, 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 unlikely to be affected. ### Patches This was fixed in v0.8.0 via https://github.com/sigstore/gitsign/pull/399 ### Workarounds n/a ### References _Are there any links users can visit to find out more?_ https://docs.sigstore.dev/about/threat-model/#sigstore-threat-model

Metadata

Created: 2023-11-14T20:31:23Z
Modified: 2023-11-14T20:31:23Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/11/GHSA-xvrc-2wvh-49vc/GHSA-xvrc-2wvh-49vc.json
CWE IDs: ["CWE-347"]
Alternative ID: GHSA-xvrc-2wvh-49vc
Finding: F163
Auto approve: 1