Jenkins Enterprise and Operations Center < 2.249.31.0.1-2 / 2.277.3.1-2 Multiple Vulnerabilities (CloudBees Security Advisory 2021-04-21)

high Nessus Plugin ID 155628

Synopsis

A job scheduling and management system hosted on the remote web server is affected by multiple vulnerabilities.

Description

The version of Jenkins Enterprise or Jenkins Operations Center running on the remote web server is 2.249.x prior to 2.249.31.0.1-2, or 2.x prior to 2.277.3.1-2. It is, therefore, affected by multiple vulnerabilities, including the following:

- Jenkins Config File Provider Plugin 3.7.0 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks. (CVE-2021-21642)

- A cross-site request forgery (CSRF) vulnerability in Jenkins Config File Provider Plugin 3.7.0 and earlier allows attackers to delete configuration files corresponding to an attacker-specified ID. (CVE-2021-21644)

- Jenkins Templating Engine Plugin 2.1 and earlier does not protect its pipeline configurations using Script Security Plugin, allowing attackers with Job/Configure permission to execute arbitrary code in the context of the Jenkins controller JVM. (CVE-2021-21646)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade Jenkins Enterprise or Jenkins Operations Center to version 2.249.31.0.1-2, 2.277.3.1-2 or later.

See Also

https://www.cloudbees.com/cloudbees-security-advisory-2021-04-21

Plugin Details

Severity: High

ID: 155628

File Name: cloudbees_security_advisory_2021-04-21.nasl

Version: 1.3

Type: combined

Agent: windows, macosx, unix

Family: CGI abuses

Published: 11/19/2021

Updated: 4/11/2022

Configuration: Enable thorough checks

Supported Sensors: Nessus Agent

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS Score Source: CVE-2021-21646

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:a:cloudbees:jenkins:*:*:*:*:*:*:*:*

Required KB Items: installed_sw/Jenkins

Exploit Ease: No known exploits are available

Patch Publication Date: 4/21/2021

Vulnerability Publication Date: 4/21/2021

Reference Information

CVE: CVE-2021-21642, CVE-2021-21644, CVE-2021-21646, CVE-2021-21645, CVE-2021-21643, CVE-2021-21647