SB2022011707 - Path traversal in Junos OS J-Web
Published: January 17, 2022
Security Bulletin ID
SB2022011707
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Path traversal (CVE-ID: CVE-2021-31385)
The vulnerability allows a remote user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in J-Web. A remote low-privileged user can send a specially crafted HTTP request and read arbitrary files on the system.
Successful vulnerability exploitation may allow an attacker to execute arbitrary code with root privileges.
Remediation
Install update from vendor's website.