#VU85356 Division by zero in Avalanche - CVE-2023-46803

Vulnerability identifier: #VU85356

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-46803

CWE-ID: CWE-369

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Avalanche
Server applications / SCADA systems

Vendor: Ivanti

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the divide-by-zero issue within the WLAvalancheService. A remote attacker can send specially crafted data packets to the Mobile Device Server and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Avalanche: 6.4.1.207

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External links
https://download.wavelink.com/Files/avalanche_v6.4.2_release_notes.txt
https://www.zerodayinitiative.com/advisories/ZDI-24-067/
https://forums.ivanti.com/s/article/Avalanche-6-4-2-Security-Hardening-and-CVEs-addressed?language=en_US

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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.