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MEDIUM

Cisco ESA, Cisco WSA, and Cisco SMA GUI Denial of Service Vulnerability

Published Mar 4, 2020

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.

Affected products

Remediation

No remediation recorded yet.

References (2)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner cisco
Published Mar 4, 2020
Updated Nov 15, 2024
Reserved Dec 12, 2019
CISA Vulnrichment
Updated Nov 15, 2024
NVD
Status Modified
Modified Jun 17, 2026
Red Hat
Severity n/a
Public date n/a
ENISA EUVD
Assigner cisco
Published Mar 4, 2020
Updated Nov 15, 2024
Exploited since n/a
EUVD-2020-24435