Advisory Details

April 23rd, 2024

Ivanti Avalanche copyFile Directory Traversal Remote Code Execution Vulnerability

ZDI-24-380
ZDI-CAN-22836

CVE ID CVE-2024-23535
CVSS SCORE 8.8, AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS Ivanti
AFFECTED PRODUCTS Avalanche
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ivanti Avalanche. Authentication is required to exploit this vulnerability.

The specific flaw exists within the copyFile method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of 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-6-4-3-Security-Hardening-and-CVEs-addressed?language=en_US
DISCLOSURE TIMELINE
  • 2023-12-13 - Vulnerability reported to vendor
  • 2024-04-23 - Coordinated public release of advisory
  • 2024-07-01 - Advisory Updated
CREDIT Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative
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