#VU25478 Resource exhaustion in Cisco AsyncOS for Cisco Email Security Appliance - CVE-2020-3132
Published: February 20, 2020
Vulnerability identifier: #VU25478
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-3132
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Cisco AsyncOS for Cisco Email Security Appliance
Cisco AsyncOS for Cisco Email Security Appliance
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to inadequate parsing mechanisms for specific email body components in the email message scanning feature. A remote attacker can send a malicious email containing a high number of shortened URLs through an affected device, trigger resource exhaustion and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.