Vulnerability · Published Jan 29, 2020 · Assigned by jenkins
CVE-2020-2101
Medium 5.3
In plain English
A medium-severity security flaw in Jenkins from Jenkins project. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.3Medium
Exploit odds (30 days)1.4%top 28.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Jenkins 2.218 and earlier, LTS 2.204.1 and earlier did not use a constant-time comparison function for validating connection secrets, which could potentially allow an attacker to use a timing attack to obtain this secret.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.jenkins-ci.main:jenkins-core | 2.204.2 | GHSA-w7jr-wqw6-54xc |
| Maven | org.jenkins-ci.main:jenkins-core | 2.219 | GHSA-w7jr-wqw6-54xc |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Jenkins project | Jenkins | unspecified – through 2.218unspecified – through LTS 2.204.1 |
References
- https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1659 x_refsource_CONFIRM
- [oss-security] 20200129 Multiple vulnerabilities in Jenkins and Jenkins plugins mailing-list, x_refsource_MLIST
- RHSA-2020:0681 vendor-advisory, x_refsource_REDHAT
- RHSA-2020:0683 vendor-advisory, x_refsource_REDHAT
- RHBA-2020:0402 vendor-advisory, x_refsource_REDHAT
- RHBA-2020:0675 vendor-advisory, x_refsource_REDHAT