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Jenkins External Monitor Job Type Plugin XML external entity vulnerability

Moderate severity GitHub Reviewed Published Jul 12, 2023 to the GitHub Advisory Database • Updated Nov 7, 2023

Package

maven org.jenkins-ci.plugins:external-monitor-job (Maven)

Affected versions

< 207.v98a

Patched versions

207.v98a

Description

Jenkins External Monitor Job Type Plugin 206.v9a_94ff0b_4a_10 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.

This allows attackers with Item/Build permission to have Jenkins parse a crafted HTTP request with XML data that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery.

External Monitor Job Type Plugin 207.v98a_a_37a_85525 disables external entity resolution for its XML parser.

References

Published by the National Vulnerability Database Jul 12, 2023
Published to the GitHub Advisory Database Jul 12, 2023
Reviewed Jul 12, 2023
Last updated Nov 7, 2023

Severity

Moderate

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS score

0.053%
(22nd percentile)

Weaknesses

CVE ID

CVE-2023-37942

GHSA ID

GHSA-g4c3-4f3v-84x8

Source code

No known source code
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