SB2019112206 - Multiple vulnerabilities in Jenkins Support Core Plugin

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Main Vulnerability Database SB2019112206

SB2019112206 - Multiple vulnerabilities in Jenkins Support Core Plugin

Published: November 22, 2019

Security Bulletin ID SB2019112206
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-16539)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to the affected plugin does not perform a permission check. A remote authenticated attacker with Overall/Read permission can delete support bundles and any arbitrary other file, with a known name/path.


2) Path traversal (CVE-ID: CVE-2019-16540)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to the affected plugin does not validate the paths submitted for the "Delete Support Bundles" feature. A remote authenticated attacker can send a specially crafted HTTP request and delete arbitrary files on the Jenkins master file system accessible to the OS user account running Jenkins.


Remediation

Install update from vendor's website.

References