CVE-2021-31154: Permissions bypass in pleaser

August 25, 2021 (updated April 3, 2023)

pleaseedit in pleaser before 0.4.0 uses predictable temporary filenames in /tmp and the target directory. This allows a local attacker to gain full root privileges by staging a symlink attack.

References

crates.io/crates/pleaser
github.com/advisories/GHSA-pp74-39w2-v4w9
gitlab.com/edneville/please
gitlab.com/edneville/please/-/tree/master/src/bin
nvd.nist.gov/vuln/detail/CVE-2021-31154
rustsec.org/advisories/RUSTSEC-2021-0102.html
www.openwall.com/lists/oss-security/2021/05/18/1

Detect and mitigate CVE-2021-31154 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →