#VU61257 UNIX symbolic link following in arborist - CVE-2021-39135

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Main Vulnerability Database Vulnerabilities #VU61257

#VU61257 UNIX symbolic link following in arborist - CVE-2021-39135

Published: March 11, 2022


Vulnerability identifier: #VU61257
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-39135
CWE-ID: CWE-61
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
arborist
Software vendor:
npm Inc.

Description

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

The vulnerability exists due to a symlink following issue. A local attacker can create a specially crafted symbolic link to a critical file on the system and overwrite it with privileges of the application.

Successful exploitation of this vulnerability may result in privilege escalation.


Remediation

Install updates from vendor's website.

External links