Jenkins Security Advisory 2023-10-18

CSIRTS triage

What

Multiple vulnerabilities affect Jenkins Core.

Who is affected

Deployments of Jenkins Core are affected.

Urgency

Remediation is urgent due to confirmed exploitation of the vulnerabilities.

Action

Update to the latest version of Jenkins Core to mitigate the vulnerabilities.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source

Jenkins Security Advisories (INTL · vendor-psirt · site)

Severity

unknown

Published

2023-10-18

Exploitation

Not in CISA KEV at last sync

Original advisory: https://www.jenkins.io/security/advisory/2023-10-18/

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

• Moderate exploitation riskCVE-2023-364783.8% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 89% of all scored CVEs.
• Exploitation likely imminentCVE-2023-44487EPSS puts this in the most-targeted tier (100.0% 30-day exploitation probability). Prioritize alongside KEV items. Riskier than 100% of all scored CVEs.

Referenced CVEs

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

• high[UPDATE] [high] http/2 implementations: Vulnerability allows denial of servicecert-bund
• high[UPDATE] [high] Eclipse Jetty: Multiple vulnerabilities allow Denial of Servicecert-bund
• criticalexploitedGitLab Security Release: 16.5.1, 16.4.2, 16.3.6gitlab
• criticalexploitedCVE-2023-44487: HTTP/2 Rapid Reset Attack Vulnerabilitycisa-kev

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