SB2018053020 - Authentication bypass in Symantec ASG and ProxySG



SB2018053020 - Authentication bypass in Symantec ASG and ProxySG

Published: May 30, 2018

Security Bulletin ID SB2018053020
Severity
Low
Patch available
NO
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Authentication bypass (CVE-ID: CVE-2018-5241)

The vulnerability allows a remote attacker can bypass authentication on the target system.

The weakness exists due to improper processing of SAML responses that contain XML nodes with comments. A remote attacker can  modify a valid SAML response so that the target system will still validate the cryptographic signature and bypass SAML authentication security controls.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.