Advisory Details

November 13th, 2024

Ivanti Avalanche WLAvalancheService TV_FC Infinite Loop Denial-of-Service Vulnerability

ZDI-24-1491
ZDI-CAN-25454

CVE ID CVE-2024-50320
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 service, which listens on TCP port 1777 by default. The issue results from a lack of a proper exit condition in a loop. 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/Security-Advisory-Ivanti-Avalanche-Multiple-CVEs-Q4-2024-Release
DISCLOSURE TIMELINE
  • 2024-10-08 - Vulnerability reported to vendor
  • 2024-11-13 - Coordinated public release of advisory
  • 2024-11-13 - Advisory Updated
CREDIT Alex Williams of Trend Micro Security Research
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