Ivanti Avalanche WLAvalancheService TV_NL Null Pointer Dereference Denial-of-Service Vulnerability

January 11th, 2024
ZDI-24-060 ZDI-CAN-21992

CVE ID

CVE-2023-46260

CVSS Score

7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors

Ivanti

Affected Products

Avalanche

Vulnerability Details

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Ivanti Avalanche. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the WLAvalancheService. The issue results from dereferencing a null pointer. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

Additional Details

Ivanti has issued an update to correct this vulnerability. More details can be found at:
https://forums.ivanti.com/s/article/Avalanche-6-4-2-Security-Hardening-and-CVEs-addressed?language=en_US

Disclosure Timeline

  • 2023-10-12 - Vulnerability reported to vendor
  • 2024-01-11 - Coordinated public release of advisory
  • 2024-07-01 - Advisory Updated

Credit

Monisc and phract

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