SB2017112112 - Security restrictions bypass in Cisco Web Security Appliance
Published: November 21, 2017
Security Bulletin ID
SB2017112112
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Security restrictions bypass (CVE-ID: CVE-2017-12303)
The vulnerability allows a remote attacker to bypass security restrictions on the target system.The weakness exists in the Advanced Malware Protection (AMP) file filtering feature of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) due to incorrect and different file hash values when AMP scans the file. A remote attacker can send a specially crafted email file attachment and bypass a configured AMP file filter.
Remediation
Install update from vendor's website.