Resource exhaustion in Cisco AsyncOS Software for Cisco Email Security Appliances
| Risk | Medium |
| Patch available | NO |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-3181 |
| CWE-ID | CWE-400 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Cisco AsyncOS for Cisco Email Security Appliance Server applications / IDS/IPS systems, Firewalls and proxy servers |
| Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Resource exhaustion
EUVDB-ID: #VU25787
Risk: Medium
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2020-3181
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe 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.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsCisco AsyncOS for Cisco Email Security Appliance: 13.0
CPE2.3- cpe:2.3:a:cisco_systems:cisco_asyncos_for_cisco_email_security_appliance:*:*:*:*:*:*:*:*
- cpe:2.3:a:cisco_systems:cisco_asyncos_for_cisco_email_security_appliance:13.0:*:*:*:*:*:*:*
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.
