CVE-2021-21606 — Improper Input Validation in Project Jenkins

CWE-20 — Improper Input Validation6 documents6 sources
Severity
4.3MEDIUMNVD
EPSS
0.2%
top 53.59%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Jenkins Project JenkinsJenkins
Timeline
PublishedJan 13
Latest updateMay 24

Description

Jenkins 2.274 and earlier, LTS 2.263.1 and earlier improperly validates the format of a provided fingerprint ID when checking for its existence allowing an attacker to check for the existence of XML files with a short path.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NExploitability: 2.8 | Impact: 1.4

Affected Packages2 packages

▶CVEListV5jenkins_project/jenkins2.242 — unspecified+2
▶NVDjenkins/jenkins2.263.1+1

🔴Vulnerability Details

3
GHSA
Arbitrary file existence check in file fingerprints in Jenkins↗2022-05-24
▶
OSV
Arbitrary file existence check in file fingerprints in Jenkins↗2022-05-24
▶
CVEList
CVE-2021-21606: Jenkins 2↗2021-01-13
▶

📋Vendor Advisories

2
Jenkins
Jenkins Security Advisory 2021-01-13↗2021-01-13
▶
Red Hat
jenkins: Arbitrary file existence check in file fingerprints↗2021-01-13
▶
CVE-2021-21606 — Improper Input Validation | cvebase