PT-2021-14688 · Jenkins · Jenkins Config File Provider Plugin+1

Published 2021-04-21 · Updated 2023-10-25 · CVE-2021-21645

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions Jenkins Config File Provider Plugin versions 3.7.0 and earlier

Description The issue concerns a lack of permission checks in several HTTP endpoints, allowing attackers with Overall/Read permission to enumerate configuration file IDs. This can be exploited by attackers to gain unauthorized access to sensitive information.

Recommendations For Jenkins Config File Provider Plugin versions 3.7.0 and earlier, update to version 3.7.1 or later, which requires appropriate permissions for the enumeration of configuration file IDs. As a temporary workaround, consider restricting access to the affected HTTP endpoints until a patch is available.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2021-21645

GHSA-2959-FJ73-HM8P

RHSA-2021:2122

RHSA-2021:2431

RHSA-2021:2517

Affected Products

Jenkins

Jenkins Config File Provider Plugin

References · 8

• https://jenkins.io/security/advisory/2021-04-21/#SECURITY-2203 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21645 · Security Note
• https://osv.dev/vulnerability/CVE-2021-21645 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-2959-fj73-hm8p · Vendor Advisory
• https://github.com/jenkinsci/config-file-provider-plugin · Note
• https://github.com/jenkinsci/config-file-provider-plugin/commit/b7f3c5150ad557e86414122c69be20075aee27fa · Note
• https://t.me/cvenotify/13748 · Telegram Post
• http://openwall.com/lists/oss-security/2021/04/21/2 · Note