CVE-2019-1003040

A sandbox bypass vulnerability in Jenkins Script Security Plugin 1.55 and earlier allows attackers to invoke arbitrary constructors in sandboxed scripts

published March 28, 2019

CVSS
โ€”
EPSS
3%
Percentile
88.9
In the wild
Unconfirmed
What it is

โš ๏ธ A crafty script can take a detour! The Jenkins Script Security Plugin's sandbox bypass lets attackers invoke any constructor, like a magician pulling a rabbit from a hat โ€” but this time, it's a potentially dangerous one. ๐Ÿ‡ Think of the Jenkins sandbox as a well-guarded room filled with valuable tools. This vulnerability is like an unauthorized guest finding a hidden entrance and accessing those tools โ€” everything they shouldn't be able to touch is suddenly up for grabs! If exploited, an attacker could run any code they wish in sandboxed scripts, jeopardizing the integrity of your CI/CD processes. Imagine someone turning your automated builds into a chaotic mess โ€” crucial credentials, sensitive data, or even destructive commands could be executed!

Put simply

Think of the Jenkins sandbox as a well-guarded room filled with valuable tools. This vulnerability is like an unauthorized guest finding a hidden entrance and accessing those tools โ€” everything they shouldn't be able to touch is suddenly up for grabs! This sandbox bypass vulnerability allows attackers to invoke arbitrary constructors in scripts, effectively evading the security measures meant to keep malicious code at bay. This could lead to unexpected behavior or exploitation within Jenkins environments.

What to do

If exploited, an attacker could run any code they wish in sandboxed scripts, jeopardizing the integrity of your CI/CD processes. Imagine someone turning your automated builds into a chaotic mess โ€” crucial credentials, sensitive data, or even destructive commands could be executed! To secure your instance, update the Jenkins Script Security Plugin to version 1.56 or later immediately. Additionally, review your script permissions and monitor for any suspicious activity in your CI/CD pipelines. ๐Ÿ”’ You've got this! With these steps, you're on track to keep your Jenkins environment secure and running smoothly. ๐Ÿ›ก๏ธ

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03431 ยท 88.9th percentile
Published
2019-03-28T17:59Z
EPSS history
Timeline
  • 28 MAR 17:59Z
    A sandbox bypass vulnerability in Jenkins Script Security Plugin 1.55 and earlier allows attackers to invoke arbitrary constructors in sandboxed scripts
    cvelistv5