#VU75513 Arbitrary file upload in Avalanche - CVE-2023-28128

Vulnerability identifier: #VU75513

Vulnerability risk: Low

CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear]

CVE-ID: CVE-2023-28128

CWE-ID: CWE-434

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Avalanche
Server applications / SCADA systems

Vendor: Ivanti

Description

The vulnerability allows a remote user to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload within the FileStoreConfig app. A remote administrator can upload a malicious file and execute it on the server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Avalanche: 6.1 - 6.3.0.555

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External links
https://www.zerodayinitiative.com/advisories/ZDI-23-456/
https://forums.ivanti.com/s/article/New-Avalanche-Landing-Page?language=en_US

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user 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.