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8.6 High

CVE-2019-1817 A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliance could allow an…

Description

A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliance could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper validation of HTTP and HTTPS requests. An attacker could exploit this vulnerability by sending a malformed HTTP or HTTPS request to an affected device. An exploit could allow the attacker to cause a restart of the web proxy process, resulting in a temporary DoS condition.

Affected products and versions

Product Affected versions Fixed in
Cisco Web Security Appliance (WSA) 11.7 earliest → < 11.7.0-406 11.7.0-406
Cisco Web Security Appliance (WSA) 11.5 earliest → < 11.5.2-020 11.5.2-020

References

Timeline

  1. Published
  2. Last modified

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