Ivanti Avalanche WLAvalancheService Stack-based Buffer Overflow Remote Code Execution Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code 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 the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. 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-6-4-2-Security-Hardening-and-CVEs-addressed?language=en_US
Disclosure Timeline
- 2023-11-09 - Vulnerability reported to vendor
- 2024-01-11 - Coordinated public release of advisory
- 2024-07-01 - Advisory Updated
Credit
Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative
