SB2023020757 - Ubuntu update for grunt



SB2023020757 - Ubuntu update for grunt

Published: February 7, 2023

Security Bulletin ID SB2023020757
Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 67% Low 33%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Code Injection (CVE-ID: CVE-2020-7729)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to the default usage of the function "load()" instead of its secure replacement "safeLoad()". A remote authenticated attacker can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


2) Path traversal (CVE-ID: CVE-2022-0436)

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

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.


3) UNIX symbolic link following (CVE-ID: CVE-2022-1537)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a symlink following issue. A local user can create a specially crafted symbolic link to the GruntJS user's .bashrc file and overwrite it with privileges of the application.

Successful exploitation of this vulnerability may result in privilege escalation.


Remediation

Install update from vendor's website.