#VU84552 Arbitrary file upload in Avalanche - CVE-2023-41725

Vulnerability identifier: #VU84552

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-41725

CWE-ID: CWE-434

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Avalanche
Server applications / SCADA systems

Vendor: Ivanti

Description

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload within the saveConfig method. A local user can upload a malicious file and execute it on the server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Avalanche: before 6.4.1.236

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External links
https://download.wavelink.com/Files/avalanche_v6.4.1.236_release_notes.txt
https://www.zerodayinitiative.com/advisories/ZDI-23-1800/

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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