SB2018022815 - Path traversal in Parallels Remote Application Server



SB2018022815 - Path traversal in Parallels Remote Application Server

Published: February 28, 2018 Updated: January 10, 2020

Security Bulletin ID SB2018022815
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 security vulnerability.


1) Path traversal (CVE-ID: CVE-2017-9447)

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

The vulnerability exists due to input validation error when processing directory traversal sequences (e.g. ".\\\") appended after the "RASHTML5Gateway" URL. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.

PoC:

https://[host]/RASHTML5Gateway//..\\\..\\\..\\\..\\\..\\\windows\win.ini

Remediation

Install update from vendor's website.