CVE-2021-21683

Description

The file browser in Jenkins 2.314 and earlier, LTS 2.303.1 and earlier may interpret some paths to files as absolute on Windows, resulting in a path traversal vulnerability allowing attackers with Overall/Read permission (Windows controller) or Job/Workspace permission (Windows agents) to obtain the contents of arbitrary files.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.56%
Vendor Advisory jenkins.io
Affected: Jenkins project Jenkins
Published at:
Updated at:

References

Link Tags
https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2481 vendor advisory
http://www.openwall.com/lists/oss-security/2021/10/06/1 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2021-21683?
CVE-2021-21683 has been scored as a medium severity vulnerability.
How to fix CVE-2021-21683?
To fix CVE-2021-21683, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-21683 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-21683 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-21683?
CVE-2021-21683 affects Jenkins project Jenkins.
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