CVE-2020-2099 — Use of Insufficiently Random Values in Project Jenkins

CWE-330 — Use of Insufficiently Random ValuesCWE-323 — Reusing a Nonce, Key Pair in EncryptionCWE-305 — Authentication Bypass by Primary Weakness8 documents7 sources
Severity
8.6HIGHNVD
EPSS
0.6%
top 29.32%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Jenkins Project JenkinsJenkins
Timeline
PublishedJan 29
Latest updateMay 24

Description

Jenkins 2.213 and earlier, LTS 2.204.1 and earlier improperly reuses encryption key parameters in the Inbound TCP Agent Protocol/3, allowing unauthorized attackers with knowledge of agent names to obtain the connection secrets for those agents, which can be used to connect to Jenkins, impersonating those agents.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:LExploitability: 3.9 | Impact: 4.7

Affected Packages2 packages

▶NVDjenkins/jenkins2.204.1+1
▶CVEListV5jenkins_project/jenkinsunspecified — 2.213+1

🔴Vulnerability Details

3
GHSA
Inbound TCP Agent Protocol/3 authentication bypass in Jenkins↗2022-05-24
▶
OSV
Inbound TCP Agent Protocol/3 authentication bypass in Jenkins↗2022-05-24
▶
CVEList
CVE-2020-2099: Jenkins 2↗2020-01-29
▶

📋Vendor Advisories

2
Jenkins
Jenkins Security Advisory 2020-01-29↗2020-01-29
▶
Red Hat
jenkins: Inbound TCP Agent Protocol/3 authentication bypass↗2020-01-29
▶

💬Community

2
Bugzilla
CVE-2020-2099 jenkins: Inbound TCP Agent Protocol/3 authentication bypass [fedora-all]↗2020-01-31
▶
Bugzilla
CVE-2020-2099 jenkins: Inbound TCP Agent Protocol/3 authentication bypass↗2020-01-31
▶
CVE-2020-2099 — Use of Insufficiently Random Values | cvebase