Jenkins Script Security Plugin Sandbox Bypass Vulnerability

A sandbox bypass vulnerability exists in Jenkins Script Security Plugin 1.53 and earlier in src/main/java/org/jenkinsci/plugins/scriptsecurity/sandbox/groovy/GroovySandbox.java,…

CheckOps priority index

8.0/10 Patch within 24 h

Severity9.9

Probability7.4

Exploitation3/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 74.4% higher than 99.5% of CVEs

CVSS 3.1 9.9 AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:

Exploited for 1,653 days 25 Apr 2022

CISA due date 16 May 2022 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 3 / 5

KEV catalog (CISA)25 Apr 2022
Exploited in EUVD (ENISA)25 Apr 2022
Used by ransomwareno
EPSS above 10 %74.4%
No account, over the networkno

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply updates per vendor instructions.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

A sandbox bypass vulnerability exists in Jenkins Script Security Plugin 1.53 and earlier in src/main/java/org/jenkinsci/plugins/scriptsecurity/sandbox/groovy/GroovySandbox.java, src/main/java/org/jenkinsci/plugins/scriptsecurity/sandbox/groovy/SecureGroovyScript.java that allows attackers with Overall/Read permission to execute arbitrary code on the Jenkins master JVM.

Affected products

Jenkins Script Security PluginScript Security Plugin

Affected versions

1.53 and earlier

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

08 Mar 2019
Published
25 Apr 2022
Exploitation reported (ENISA)
25 Apr 2022
Added to the KEV catalog
16 May 2022
CISA remediation due date
30 Sept 2026
EPSS peak: 74.4%

References

Other exploited vulnerabilities from the same vendor

CVE-2017-1000353Jenkins Remote Code Execution Vulnerability
9.3 · Background exploitation
CVE-2024-23897Jenkins Command Line Interface (CLI) Path Traversal Vulnerability
9.9 · Background exploitation
CVE-2015-5317Jenkins User Interface (UI) Information Disclosure Vulnerability
6.1 · Background exploitation
CVE-2019-1003030Jenkins Matrix Project Plugin Remote Code Execution Vulnerability
8.7 · Background exploitation
CVE-2018-1000861Jenkins Stapler Web Framework Deserialization of Untrusted Data Vulnerability
9.3 · Background exploitation