Jenkins Security Advisory 2021-05-11

CSIRTS triage

What

Multiple plugins are affected by security vulnerabilities.

Who is affected

Deployments of the affected plugins in Jenkins.

Urgency

Remediation is necessary as vulnerabilities could be exploited, though exploitation status is currently unknown.

Action

Update the affected plugins to their latest versions.

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

Details

Source

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

Severity

unknown

Published

2021-05-11

Exploitation

Not in CISA KEV at last sync

Original advisory: https://www.jenkins.io/security/advisory/2021-05-11/

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.

• Elevated exploitation riskCVE-2021-2164811.3% 30-day exploitation probability — well above the norm. Schedule remediation this cycle. Riskier than 96% of all EPSS-scored CVEs.
• Exploitation likely imminentCVE-2021-21649EPSS puts this in the most-targeted tier (72.7% 30-day exploitation probability). Prioritize alongside KEV items. Riskier than 99.4% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2021-216500.71% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 51% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2021-216510.73% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 52% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2021-216520.64% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 48% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2021-216530.86% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 56% of all EPSS-scored CVEs.
• Moderate exploitation riskCVE-2021-216541.3% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 68% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2021-216550.52% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 42% of all EPSS-scored CVEs.
• Moderate exploitation riskCVE-2021-216561.5% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 72% of all EPSS-scored CVEs.

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