SB2020042913 - Path traversal in Juniper Junos OS

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Main Vulnerability Database SB2020042913

SB2020042913 - Path traversal in Juniper Junos OS

Published: April 29, 2020 Updated: April 29, 2020

Security Bulletin ID SB2020042913
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Path traversal (CVE-ID: CVE-2020-1631)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Green


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

The vulnerability exists due to input validation error when processing directory traversal sequences in the HTTP/HTTPS service used by J-Web. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.

Note: Using this vulnerability, an attacker may be able to inject commands into the httpd.log, read files with "world" readable file permission or obtain J-Web session tokens.  


Remediation

Install update from vendor's website.

References