CVE-2021-21696 Detail
Current Description
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.
Analysis Description
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.
Severity
References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-693 | Protection Mechanism Failure | Jenkins Project |
Change History
2 change records found show changes
Initial Analysis 11/08/2021 12:33:05 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | CPE Configuration |
OR
*cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:* versions up to (including) 2.303.2
*cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:* versions up to (including) 2.318
|
|
| Added | CVSS V2 |
NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) |
|
| Added | CVSS V3.1 |
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
|
| Changed | Reference Type |
http://www.openwall.com/lists/oss-security/2021/11/04/3 No Types Assigned |
http://www.openwall.com/lists/oss-security/2021/11/04/3 Mailing List, Third Party Advisory |
| Changed | Reference Type |
https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2423 No Types Assigned |
https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2423 Mitigation, Vendor Advisory |
CVE Modified by Jenkins Project 11/04/2021 2:15:08 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Reference |
http://www.openwall.com/lists/oss-security/2021/11/04/3 [No Types Assigned] |
Quick Info
CVE Dictionary Entry:
CVE-2021-21696
NVD Published Date:
11/04/2021
NVD Last Modified:
11/08/2021
Source:
Jenkins Project