Cisco Security Advisory - Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability

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Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability

Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP.

The vulnerability is due to incorrect handling of an HTTP range header. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-filepolbypass-67DEwMe2

     
         
Security Impact Rating:  Medium
   
   
       
CVE: CVE-2021-1223
Source: Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability