Jenkins 2.274 and earlier, LTS 2.263.1 and earlier allows users with Agent/Configure permission to choose agent names that cause Jenkins to override the global `config.xml` file.
Published 2021-01-13 16:15:14
Updated 2023-10-25 18:16:45
View at NVD,   CVE.org
Vulnerability category: Directory traversal

Threat overview for CVE-2021-21605

Top countries where our scanners detected CVE-2021-21605
Top open port discovered on systems with this issue 80
IPs affected by CVE-2021-21605 17,557
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2021-21605!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2021-21605

0.13%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 47 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-21605

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.0
MEDIUM AV:N/AC:M/Au:S/C:P/I:P/A:P
6.8
6.4
NIST
8.0
HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
2.1
5.9
NIST

CWE ids for CVE-2021-21605

  • The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
    Assigned by: jenkinsci-cert@googlegroups.com (Secondary)
  • The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-21605

Products affected by CVE-2021-21605

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