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Improper Input Validation in Jenkins

High severity GitHub Reviewed Published May 13, 2022 to the GitHub Advisory Database • Updated Dec 18, 2023

Package

maven org.jenkins-ci.main:jenkins-core (Maven)

Affected versions

< 2.121.2
>= 2.122, < 2.132

Patched versions

2.121.2
2.132

Description

A arbitrary file read vulnerability exists in Jenkins 2.132 and earlier, 2.121.1 and earlier in the Stapler web framework's org/kohsuke/stapler/Stapler.java that allows attackers to send crafted HTTP requests returning the contents of any file on the Jenkins master file system that the Jenkins master has access to.

References

Published by the National Vulnerability Database Jul 23, 2018
Published to the GitHub Advisory Database May 13, 2022
Reviewed Jun 28, 2022
Last updated Dec 18, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS score

1.492%
(87th percentile)

Weaknesses

CVE ID

CVE-2018-1999002

GHSA ID

GHSA-qf38-f2fr-q4x9

Source code

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