CVE-2018-1000861
CRITICAL severity · CVSS 9.8 · Insecure deserialization · actively exploited (CISA KEV)
9.8CVSS CRITICAL ● exploited
🔴 Actively exploited in the wild (CISA Known Exploited Vulnerabilities).
Added to KEV 2022-02-10. US federal agencies must patch by 2022-08-10.
Summary
A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153 and earlier, LTS 2.138.3 and earlier in stapler/core/src/main/java/org/kohsuke/stapler/MetaClass.java that allows attackers to invoke some methods on Java objects by accessing crafted URLs that were not intended to be invoked this way.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)94%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (2)
Recommendation
This vulnerability is being actively exploited in the wild — patch affected products urgently. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://jenkins.io/security/advisory/2018-12-05/#SECURITY-595Advisory
- https://jenkins.io/security/advisory/2018-12-05/#SECURITY-595Advisory
- http://packetstormsecurity.com/files/166778/Jenkins-Remote-Code-Execution.htmlAdvisory
- http://www.securityfocus.com/bid/106176
- https://access.redhat.com/errata/RHBA-2019:0024Advisory
- http://packetstormsecurity.com/files/166778/Jenkins-Remote-Code-Execution.htmlAdvisory
- http://www.securityfocus.com/bid/106176
- https://access.redhat.com/errata/RHBA-2019:0024Advisory