Jenkins Enterprise and Operations Center < 2.277.43.0.3 / 2.319.1.5 Multiple Vulnerabilities (CloudBees Security Advisory 2021-12-01)

high Nessus Plugin ID 158092

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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 2.277.x prior to 2.277.43.0.3, or 2.x prior to 2.319.1.5. It is, therefore, affected by a multiple vulnerabilities, including the following:

- When reading a specially crafted TAR archive, Compress can be made to allocate large amounts of memory that finally leads to an out of memory error even for very small inputs. This could be used to mount a denial of service attack against services that use Compress' tar package. (CVE-2021-35517)

- jsoup is a Java library for working with HTML. Those using jsoup versions prior to 1.14.2 to parse untrusted HTML or XML may be vulnerable to DOS attacks. If the parser is run on user supplied input, an attacker may supply content that causes the parser to get stuck (loop indefinitely until cancelled), to complete more slowly than usual, or to throw an unexpected exception. This effect may support a denial of service attack. The issue is patched in version 1.14.2. There are a few available workarounds. Users may rate limit input parsing, limit the size of inputs based on system resources, and/or implement thread watchdogs to cap and timeout parse runtimes. (CVE-2021-37714)

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 2.277.43.0.3, 2.319.1.5, or later.

Plugin Details

Severity: High

ID: 158092

File Name: cloudbees-security-advisory-2021-12-01.nasl

Version: 1.4

Type: combined

Agent: windows, macosx, unix

Family: CGI abuses

Published: 2/16/2022

Updated: 4/11/2022

Configuration: Enable thorough checks

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2021-37714

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/a:cloudbees:jenkins

Required KB Items: installed_sw/Jenkins

Exploit Ease: No known exploits are available

Patch Publication Date: 12/1/2021

Vulnerability Publication Date: 8/18/2021

Reference Information

CVE: CVE-2021-35517, CVE-2021-37714

Detections

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