Ivanti Avalanche DeviceLogResource Directory Traversal Remote Code Execution Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ivanti Avalanche. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.
The specific flaw exists within the DeviceLogResource class. 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 the service account.
Additional Details
Ivanti has issued an update to correct this vulnerability. More details can be found at:
https://download.wavelink.com/Files/avalanche_v6.3.4_release_notes.txt
Disclosure Timeline
- 2021-12-08 - Vulnerability reported to vendor
- 2022-05-26 - Coordinated public release of advisory
- 2022-07-27 - Advisory Updated
Credit
Piotr Bazydlo (@chudypb)
