CVE-2019-1817: Cisco Web Security Appliance Malformed Request Denial of Service Vulnerability
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 Software
Event History
Frequently Asked Questions
What is CVE-2019-1817?
CVE-2019-1817 is a vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliance.
What is the severity of CVE-2019-1817?
CVE-2019-1817 has a severity rating of 7.5 (High).
How does CVE-2019-1817 impact Cisco Web Security Appliance?
CVE-2019-1817 can cause a denial of service (DoS) condition on an affected Cisco Web Security Appliance device.
Are there any affected versions of Cisco Web Security Appliance?
Yes, Cisco Web Security Appliance versions 11.5.1-fcs-115, 11.5.1-fcs-124, 11.5.1-fcs-125, and 11.7.0-fcs-334 are affected.
How can I fix CVE-2019-1817?
To fix CVE-2019-1817, it is recommended to apply the necessary patches provided by Cisco.