Vulnerability Details : CVE-2021-21687
Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not check agent-to-controller access to create symbolic links when unarchiving a symbolic link in FilePath#untar.
Products affected by CVE-2021-21687
- cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
- cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*
Threat overview for CVE-2021-21687
Top countries where our scanners detected CVE-2021-21687
Top open port discovered on systems with this issue
80
IPs affected by CVE-2021-21687 30,296
Threat actors abusing to this issue?
Yes
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affected by CVE-2021-21687!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2021-21687
0.20%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 58 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-21687
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.4
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:P/A:N |
10.0
|
4.9
|
NIST | |
|
9.1
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
3.9
|
5.2
|
NIST |
CWE ids for CVE-2021-21687
-
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.Assigned by:
- jenkinsci-cert@googlegroups.com (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2021-21687
-
https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455
Jenkins Security Advisory 2021-11-04Vendor Advisory
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