#VU85739 Missing Authorization in GoAnywhere MFT - CVE-2024-0204

Vulnerability identifier: #VU85739

Vulnerability risk: Critical

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2024-0204

CWE-ID: CWE-862

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
GoAnywhere MFT
Server applications / Remote access servers, VPN

Vendor: Fortra

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to missing authorization checks related to the InitialAccountSetup.xhtml file along with a path normalization issue. A remote non-authenticated attacker can bypass authentication process and gain full control over the system by creating an administrative account.

Exploit example to access the initial setup page bypassing the authorization check:

https://[host]:8001/goanywhere/images/..;/wizard/InitialAccountSetup.xhtml

Mitigation
Install updates from vendor's website.

Vulnerable software versions

GoAnywhere MFT: 6.0.0 - 7.4.0

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External links
https://www.fortra.com/security/advisory/fi-2024-001
https://my.goanywhere.com/webclient/ViewSecurityAdvisories.xhtml
https://www.horizon3.ai/cve-2024-0204-fortra-goanywhere-mft-authentication-bypass-deep-dive/

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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. However, a fully functional exploit for this vulnerability is available.