Resource exhaustion in Cisco AsyncOS Software for Cisco Email Security Appliances

1) Resource exhaustion

EUVDB-ID: #VU25787

Risk: Medium

CVSSv3.1: 6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-3181

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to exhaust resources on an affected device.

The vulnerability exists due to insufficient control over system memory allocation in the malware detection functionality in Cisco Advanced Malware Protection (AMP). A remote attacker can send a specially crafted email through the targeted device, cause an email attachment that contains malware to be delivered to a user and cause email processing delays.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Cisco AsyncOS for Cisco Email Security Appliance: 13.0

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-resource-exhaust-D7RQAhnD

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.