Vulnerability Description
A vulnerability in the web-based management interface of Cisco AsyncOS for Cisco Email Security Appliance (ESA), Cisco Web Security Appliance (WSA), and Cisco Content Security Management Appliance (SMA) could allow an unauthenticated remote attacker to cause high CPU usage on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of specific HTTP request headers. An attacker could exploit this vulnerability by sending a malformed HTTP request to an affected device. A successful exploit could allow the attacker to trigger a prolonged status of high CPU utilization relative to the GUI process(es). Upon successful exploitation of this vulnerability, an affected device will still be operative, but its response time and overall performance may be degraded.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cloud Email Security | <= 13.0.0-392 |
| Cisco | Content Security Management Appliance | < 13.6.0 |
| Cisco | Email Security Appliance | <= 13.0.0-392 |
| Cisco | Web Security Appliance | <= 12.0.1-268 |
Related Weaknesses (CWE)
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cVendor Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cVendor Advisory
FAQ
What is CVE-2020-3164?
CVE-2020-3164 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A vulnerability in the web-based management interface of Cisco AsyncOS for Cisco Email Security Appliance (ESA), Cisco Web Security Appliance (WSA), and Cisco Content Security Management Appliance (SM...
How severe is CVE-2020-3164?
CVE-2020-3164 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-3164?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Cloud Email Security, Cisco Content Security Management Appliance, Cisco Email Security Appliance, Cisco Web Security Appliance.