SB2018080118 - Security restrictions bypass in Symfony

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2018080118

SB2018080118 - Security restrictions bypass in Symfony

Published: August 1, 2018

Security Bulletin ID SB2018080118
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Support for legacy HTTP methods (CVE-ID: CVE-2018-14773)

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to Symfony HttpFoundation component includes support for legacy Microsoft IIS headers X-Original-URL and X-Rewrite-URL. A remote attacker can send a specially crafted HTTP request to the vulnerable application requesting one URL but have Symphony return a different one. An attacker can abuse X-Original-URL and X-Rewrite-URL headers to access otherwise restricted functionality and bypass restrictions on higher level caches and web servers.



Remediation

Install update from vendor's website.

References