Whole-script approval in Jenkins Script Security Plugin vulnerable to SHA-1 collisions
Script Security Plugin 1189.vb_a_b_7c8fd5fde and earlier stores whole-script approvals as the [SHA-1 hash](https://en.wikipedia.org/wiki/SHA-1) of the approved script. SHA-1 no longer meets the security standards for producing a cryptographically secure message digest. Script Security Plugin 1190.v65867a_a_47126 uses SHA-512 for new whole-script approvals. Previously approved scripts will have their SHA-1 based whole-script approval replaced with a corresponding SHA-512 whole-script approval when the script is next used. Whole-script approval only stores the SHA-1 or SHA-512 hash, so it is not possible to migrate all previously approved scripts automatically on startup. Administrators concerned about SHA-1 collision attacks on the whole-script approval feature are able to revoke all previous (SHA-1) script approvals on the In-Process Script Approval page.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2022-45379US | high7.5 | — | ||
Jenkins Script Security Plugin 1189.vb_a_b_7c8fd5fde and earlier stores whole-script approvals as the SHA-1 hash of the script, making it vulnerable to collision attacks. | ||||
references
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2022/11/15/4WEB
- https://github.com/jenkinsci/script-security-pluginPACKAGE
- https://github.com/jenkinsci/script-security-plugin/commit/65867aa471265a16198b92fb439782ba3554da66WEB
- https://nvd.nist.gov/vuln/detail/CVE-2022-45379ADVISORY
- https://www.jenkins.io/security/advisory/2022-11-15/#SECURITY-2564WEB
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