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Jenkins SSH Agent Plugin exposes SSH private key password to users with permission to read the build log

Low severity GitHub Reviewed Published May 13, 2022 to the GitHub Advisory Database • Updated Dec 15, 2023

Package

maven org.jenkins-ci.plugins:ssh-agent (Maven)

Affected versions

<= 1.15

Patched versions

1.16

Description

An exposure of sensitive information vulnerability exists in Jenkins SSH Agent Plugin 1.15 and earlier in SSHAgentStepExecution.java that exposes the SSH private key password to users with permission to read the build log. As of version 1.16, the plugin no longer logs the ssh-add invocation that would reveal the passphrase.

References

Published by the National Vulnerability Database Aug 1, 2018
Published to the GitHub Advisory Database May 13, 2022
Reviewed Dec 12, 2022
Last updated Dec 15, 2023

Severity

Low

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
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
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:H/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS score

0.065%
(30th percentile)

Weaknesses

CVE ID

CVE-2018-1999036

GHSA ID

GHSA-wwgx-94v6-fc2p

Source code

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