SB2017021707 - Security restrictions bypass in Cisco AsyncOS Software for Cisco ESA and Cisco WSA



SB2017021707 - Security restrictions bypass in Cisco AsyncOS Software for Cisco ESA and Cisco WSA

Published: February 17, 2017

Security Bulletin ID SB2017021707
Severity
Low
Patch available
YES
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) Filerting bypass (CVE-ID: CVE-2017-3827)

The vulnerability allows a remote attacker to bypass security filtering mechanisms.

The vulnerability exists due to improper error handling when processing malformed MIME header in an email attachment. A remote unauthenticated attacker can send specially crafted email with malformed MIME attachment and bypass implemented security filters.


Remediation

Install update from vendor's website.