ZDI-22-776: Ivanti Avalanche JwtTokenUtility Deserialization of Untrusted Data Remote Code Execution Vulnerability
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 JwtTokenUtility class. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account.
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-22-776?
The severity of ZDI-22-776 is critical due to its potential for remote code execution.
How do I fix ZDI-22-776?
To fix ZDI-22-776, apply the latest security patches provided by Ivanti for Avalanche.
What systems are affected by ZDI-22-776?
ZDI-22-776 affects installations of Ivanti Avalanche that have the vulnerable authentication mechanism.
Can ZDI-22-776 be exploited without authentication?
Yes, ZDI-22-776 can be exploited as the authentication mechanism can be bypassed.
What kind of attacks does ZDI-22-776 allow?
ZDI-22-776 allows remote attackers to execute arbitrary code on affected systems.