Remote code execution in GoAnywhere MFT

1) Deserialization of Untrusted Data

EUVDB-ID: #VU71774

Risk: Critical

CVSSv3.1: 9.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-0669

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data passed to the "/goanywhere/lic/accept" HTTP endpoint of the administrative web interface. A remote attacker can send a specially crafted HTTP request to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install update from vendor's website.

Vulnerable software versions

GoAnywhere MFT: 4.0.2 - 7.1.1

External links

http://my.goanywhere.com/webclient/ViewSecurityAdvisories.xhtml?01.02.2023
http://infosec.exchange/@briankrebs/109795710941843934
http://frycos.github.io/vulns4free/2023/02/06/goanywhere-forgotten.html

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?

Yes. This vulnerability is being exploited in the wild.