CVE-2023-40339 — Jenkins Config File Provider Plugin 952

Jenkins Config File Provider Plugin 952.va_544a_6234b_46 and earlier does not mask (i.e., replace with asterisks) credentials specified in configuration files when they're written to the build log.

01What is this vulnerability?

Jenkins Config File Provider Plugin 952.va_544a_6234b_46 and earlier does not mask (i.e., replace with asterisks) credentials specified in configuration files when they're written to the build log.

02Affected products

Vendor	Product	Versions
Jenkins Project	Jenkins Config File Provider Plugin	953.v0432a_802e4d2, 951.953.vdfc5f6e2dcc4

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-08-16T14:32:51.314Z
• Last modified: 2024-10-08T17:49:36.202Z

09References

• www.jenkins.io — https://www.jenkins.io/security/advisory/2023-08-16/#SECURITY-3090
• www.openwall.com — http://www.openwall.com/lists/oss-security/2023/08/16/3