CVE-2021-21695
jenkins: FilePath#listFiles lists files outside directories with agent read access when following symbolic links.
Severity Score
8.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
FilePath#listFiles lists files outside directories that agents are allowed to access when following symbolic links in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier.
FilePath#listFiles lista los archivos fuera de los directorios a los que agentes pueden acceder cuando siguen enlaces simbólicos en Jenkins versiones 2.318 y anteriores, LTS versiones 2.303.2 y anteriores
An incorrect permissions validation vulnerability was found in Jenkins. The FilePath#listFiles lists files outside directories with agent read access when following symbolic links. This may allow an attacker to get access to restricted data.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-01-04 CVE Reserved
- 2021-11-04 CVE Published
- 2024-07-20 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CWE-59: Improper Link Resolution Before File Access ('Link Following')
CAPEC
References (4)
| URL | Tag | Source |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2021/11/04/3 | Mailing List |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455 | 2023-11-22 | |
| https://access.redhat.com/security/cve/CVE-2021-21695 | 2021-11-29 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2020343 | 2021-11-29 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Jenkins Search vendor "Jenkins" | Jenkins Search vendor "Jenkins" for product "Jenkins" | < 2.303.3 Search vendor "Jenkins" for product "Jenkins" and version " < 2.303.3" | lts |
Affected
| ||||||
| Jenkins Search vendor "Jenkins" | Jenkins Search vendor "Jenkins" for product "Jenkins" | < 2.319 Search vendor "Jenkins" for product "Jenkins" and version " < 2.319" | - |
Affected
| ||||||