CVE-2021-21696

Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not limit agent read/write access to the libs/ directory inside build directories when using the FilePath APIs, allowing attackers in control of agent processes to replace the code of a trusted library with a modified variant. This results in unsandboxed code execution in the Jenkins controller process.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://www.openwall.com/lists/oss-security/2021/11/04/3	Mailing List Third Party Advisory
https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2423	Mitigation Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/11/04/3	Mailing List Third Party Advisory
https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2423	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:jenkins:jenkins:::::lts:::*
	cpe:2.3:a:jenkins:jenkins:::::-:::*

History

21 Nov 2024, 05:48

Type	Values Removed	Values Added
References	~~() http://www.openwall.com/lists/oss-security/2021/11/04/3 - Mailing List, Third Party Advisory~~	() http://www.openwall.com/lists/oss-security/2021/11/04/3 - Mailing List, Third Party Advisory
References	~~() https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2423 - Mitigation, Vendor Advisory~~	() https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2423 - Mitigation, Vendor Advisory

22 Nov 2023, 21:22

Type	Values Removed	Values Added
CWE		NVD-CWE-Other

25 Oct 2023, 18:16

Type	Values Removed	Values Added
CWE	~~CWE-693~~

Information

Published : 2021-11-04 17:15

Updated : 2024-11-21 05:48

NVD link : CVE-2021-21696

Mitre link : CVE-2021-21696

CVE.ORG link : CVE-2021-21696

JSON object : View

Products Affected

jenkins

jenkins

CWE

NVD-CWE-Other

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