Vulnerability identifier: #VU94505

Vulnerability risk: Critical

CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-20401

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Secure Email Gateway
Other software / Other software solutions
Cisco AsyncOS for Secure Email Gateway
Operating systems & Components / Operating system

Vendor:

Description

The vulnerability allows a remote attacker to overwrite arbitrary files on the system.

The vulnerability exists due to input validation error when processing email attachments if file analysis and content filters are enabled. A remote attacker can send a specially crafted email attachment and overwrite arbitrary files on the system with root privileges.

Successful exploitation of the vulnerability may result in complete system compromise.

Mitigation
Install update from vendor's website.

Vulnerable software versions

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External links
http://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-afw-bGG2UsjH
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwj53998

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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