high8.6
CVE-2019-1886
A vulnerability in the HTTPS decryption feature of Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to cause a denial of serv…
Impact
A vulnerability in the HTTPS decryption feature of Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient validation of Secure Sockets Layer (SSL) server certificates. An attacker could exploit this vulnerability by installing a malformed certificate in a web server and sending a request to it through the Cisco WSA. A successful exploit could allow the attacker to cause an unexpected restart of the proxy process on an affected device.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cisco | Asyncos | from 10.5 before 10.5.5-005 from 11.5 before 11.5.2-020 |
| Cisco | Web Security Appliance | Versions 10.5.2-072, 10.5.3-025, 11.7.0-fcs-334 |