Jenkins GitHub Pull Request Builder Plugin allows attacker with local file system access to obtain GitHub credentials

CVE-2018-1000142 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

Description

An exposure of sensitive information vulnerability exists in Jenkins GitHub Pull Request Builder Plugin version 1.39.0 and older in GhprbCause.java that allows an attacker with local file system access to obtain GitHub credentials. Since 1.40.0, the plugin no longer stores serialized objects containing the credential on disk. Builds started before the plugin was updated to 1.40.0 will retain the encoded credentials on disk. We strongly recommend revoking old GitHub credentials used in Jenkins. We’re providing a script for use in the Script Console that will attempt to remove old stored credentials from build.xml files.

Basic information

Type
reviewed
Severity
medium
Advisory on GitHub
Open advisory ↗
Repository advisory
—
Source code
Browse source ↗
Published (advisory)
2022-05-14 03:23:44 UTC
Updated
2023-01-28 05:03:56 UTC
GitHub reviewed
2022-12-12 21:06:35 UTC
NVD published
2018-04-05

EPSS Score

Score Percentile
0.02% 4.75%

CVSS Scores

Base score Version Severity Vector
4.0 3.0 —
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.

Identifiers

Type Value
GHSA GHSA-hr74-2j5v-ghfv ↗
CVE CVE-2018-1000142 ↗

CWEs

CWE id Name
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected packages (1)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
maven org.jenkins-ci.plugins:ghprb <= 1.39.0 1.40.0 —

References

cvelogic Threat Intelligence