Input validation error in Cisco Systems, Inc products - CVE-2020-3164
Published: March 5, 2020
Vulnerability identifier: #VU25788
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-3164
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper validation of specific HTTP request headers. A remote attacker can send a specially crafted HTTP request to an affected device, trigger a prolonged status of high CPU utilization relative to the GUI process(es) and perform a denial of service (DoS) attack.
Affected software
Cisco AsyncOS for Cisco Email Security Appliance
Cisco Web Security Appliance
Cisco Content Security Management Appliance
Cisco Web Security Appliance
Cisco Content Security Management Appliance
How to mitigate CVE-2020-3164
Install updates from vendor's website.
Cisco Content Security Management Appliance - update to 13.6.0