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AUSCERT External Security Bulletin Redistribution
ESB-2021.3884
Jenkins Security Advisory 2021-11-12
15 November 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Active Choices Plugin
OWASP Dependency-Check Plugin
Performance Plugin
pom2config Plugin
Scriptler Plugin
Squash TM Publisher (Squash4Jenkins) Plugin
Publisher: Jenkins
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Overwrite Arbitrary Files -- Existing Account
Cross-site Scripting -- Existing Account
Access Confidential Data -- Existing Account
Reduced Security -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-43578 CVE-2021-43577 CVE-2021-43576
CVE-2021-21701 CVE-2021-21700 CVE-2021-21699
Original Bulletin:
https://www.jenkins.io/security/advisory/2021-11-12/
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Jenkins Security Advisory 2021-11-12
This advisory announces vulnerabilities in the following Jenkins deliverables:
o Active Choices Plugin
o OWASP Dependency-Check Plugin
o Performance Plugin
o pom2config Plugin
o Scriptler Plugin
o Squash TM Publisher (Squash4Jenkins) Plugin
Descriptions
Stored XSS vulnerability in Active Choices Plugin
SECURITY-2219 / CVE-2021-21699
Active Choices Plugin 2.5.6 and earlier does not escape the parameter name of
reactive parameters and dynamic reference parameters.
This results in a stored cross-site scripting (XSS) vulnerability exploitable
by attackers with Job/Configure permission.
Active Choices Plugin 2.5.7 escapes references to parameter names.
Stored XSS vulnerability in Scriptler Plugin
SECURITY-2406 / CVE-2021-21700
Scriptler Plugin 3.3 and earlier does not escape the name of scripts on the UI
when asking to confirm their deletion.
This results in a stored cross-site scripting (XSS) vulnerability exploitable
by attackers able to create Scriptler scripts.
Scriptler Plugin 3.4 escapes the name of scripts on the UI when asking to
confirm their deletion.
XXE vulnerability in Performance Plugin
SECURITY-2394 / CVE-2021-21701
Performance Plugin 3.20 and earlier does not configure its XML parser to
prevent XML external entity (XXE) attacks.
This allows attackers able to control workspace contents to have Jenkins parse
a crafted XML report file that uses external entities for extraction of secrets
from the Jenkins controller or server-side request forgery.
As of publication of this advisory, there is no fix.
XXE vulnerability in pom2config Plugin
SECURITY-2415 / CVE-2021-43576
pom2config Plugin 1.2 and earlier does not configure its XML parser to prevent
XML external entity (XXE) attacks.
This allows attackers with Overall/Read and Item/Read permissions to have
Jenkins parse a crafted XML file that uses external entities for extraction of
secrets from the Jenkins controller or server-side request forgery.
As of publication of this advisory, there is no fix.
XXE vulnerability in OWASP Dependency-Check Plugin
SECURITY-2488 / CVE-2021-43577
OWASP Dependency-Check Plugin 5.1.1 and earlier does not configure its XML
parser to prevent XML external entity (XXE) attacks.
This allows attackers able to control workspace contents to have Jenkins parse
a crafted XML file that uses external entities for extraction of secrets from
the Jenkins controller or server-side request forgery.
As of publication of this advisory, there is no fix.
Arbitrary file write vulnerability in Squash TM Publisher (Squash4Jenkins)
Plugin
SECURITY-2525 / CVE-2021-43578
Squash TM Publisher (Squash4Jenkins) Plugin 1.0.0 and earlier implements an
agent-to-controller message that does not implement any validation of its
input.
This allows attackers able to control agent processes to replace arbitrary
files on the Jenkins controller file system with an attacker-controlled JSON
string.
As of publication of this advisory, there is no fix.
Severity
o SECURITY-2219: High
o SECURITY-2394: High
o SECURITY-2406: High
o SECURITY-2415: High
o SECURITY-2488: High
o SECURITY-2525: High
Affected Versions
o Active Choices Plugin up to and including 2.5.6
o OWASP Dependency-Check Plugin up to and including 5.1.1
o Performance Plugin up to and including 3.20
o pom2config Plugin up to and including 1.2
o Scriptler Plugin up to and including 3.3
o Squash TM Publisher (Squash4Jenkins) Plugin up to and including 1.0.0
Fix
o Active Choices Plugin should be updated to version 2.5.7
o Scriptler Plugin should be updated to version 3.4
These versions include fixes to the vulnerabilities described above. All prior
versions are considered to be affected by these vulnerabilities unless
otherwise indicated.
As of publication of this advisory, no fixes are available for the following
plugins:
o OWASP Dependency-Check Plugin
o Performance Plugin
o pom2config Plugin
o Squash TM Publisher (Squash4Jenkins) Plugin
Credit
The Jenkins project would like to thank the reporters for discovering and
reporting these vulnerabilities:
o Adith Sudhakar working with Trend Micro Zero Day Initiative for
SECURITY-2394, SECURITY-2415
o Daniel Beck, CloudBees, Inc. for SECURITY-2525
o Guy Lederfein of Trend Micro for SECURITY-2406
o Kevin Guerroudj, and, independently, Audrey Prieur of Trend Micro for
SECURITY-2219
o haby0 (Duxiaoman Financial Security Team) for SECURITY-2488
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