CVE-2019-1003029KEV · OVERDUE

Jenkins Script Security Plugin Sandbox Bypass Vulnerability

Critical · published March 8, 2019

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.9. It is confirmed in active exploitation. It sits in the 99.5th percentile for exploit probability.

1622
days past CISA
deadline
CVSS v3.1
9.9
EPSS
74%
Percentile
99.5
In the wild
Confirmed
What it is

🚨 A sneaky sandbox bypass in Jenkins could let anyone with Overall/Read permission wreak havoc on your Jenkins master! 🔥 Think of it as a bouncer at a club who mistakenly lets in anyone with a VIP pass, ignoring the fact that they could be trouble — this vulnerability lets attackers execute arbitrary code as if they had the keys to the kingdom! If exploited, an attacker could execute any code they desire on the Jenkins master, leading to a catastrophic breach of your CI/CD pipeline. This could mean unauthorized access to projects, data leakage, and even complete system takeover — absolutely devastating. ⚡

Put simply

Think of it as a bouncer at a club who mistakenly lets in anyone with a VIP pass, ignoring the fact that they could be trouble — this vulnerability lets attackers execute arbitrary code as if they had the keys to the kingdom! This vulnerability in the Jenkins Script Security Plugin allows attackers to bypass the sandbox restrictions that should prevent the execution of arbitrary code, which can lead to full control over the Jenkins instance.

What to do

If exploited, an attacker could execute any code they desire on the Jenkins master, leading to a catastrophic breach of your CI/CD pipeline. This could mean unauthorized access to projects, data leakage, and even complete system takeover — absolutely devastating. ⚡ Immediately update the Script Security Plugin to version 1.54 or later to close this critical vulnerability. Additionally, review user permissions and limit Overall/Read access to only trusted personnel. 🛡️ You've got this! Follow these steps to secure your Jenkins environment and restore safety to your CI/CD processes! 💪✨

The record
Technical detail
CVSS v3.1
9.9 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.74440 · 99.5th percentile
Published
2019-03-08T21:00Z
KEV added
2022-04-25 · due 2022-05-16
EPSS history
Timeline
  • 25 APR 00:00Z
    Added to CISA KEV — remediate by May 16
    kev
  • 08 MAR 21:00Z
    A sandbox bypass vulnerability exists in Jenkins Script Security Plugin 1.53 and earlier in src/main/java/org/jenkinsci/plugins/scriptsecurity/sandbox/groovy/Gr…
    cvelistv5