Jenkins Security Advisory 2021-06-10
Affects plugin: Kiuwan Affects plugin: Kubernetes CLI Affects plugin: XebiaLabs XL Deploy
CSIRTS triage
- What
- Multiple plugins in Jenkins have vulnerabilities that could potentially be exploited.
- Who is affected
- Deployments of Jenkins and the listed plugins are affected.
- Urgency
- Remediation is necessary as vulnerabilities exist, although exploitation status is currently unknown.
- Action
- Update to the latest versions of Jenkins and the affected plugins.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://www.jenkins.io/security/advisory/2021-06-10/
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-2021-216611.6% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 75% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2021-216620.95% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 59% of all EPSS-scored CVEs.
- Moderate exploitation riskCVE-2021-216631.0% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 60% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2021-216640.99% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 60% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2021-216650.66% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 49% of all EPSS-scored CVEs.
- Moderate exploitation riskCVE-2021-216661.2% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 66% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2021-21661 | coverage & exploitation status | NVD · CVE.org |
| CVE-2021-21662 | coverage & exploitation status | NVD · CVE.org |
| CVE-2021-21663 | coverage & exploitation status | NVD · CVE.org |
| CVE-2021-21664 | coverage & exploitation status | NVD · CVE.org |
| CVE-2021-21665 | coverage & exploitation status | NVD · CVE.org |
| CVE-2021-21666 | coverage & exploitation status | NVD · CVE.org |
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