ZDI-CAN-20728: ZDI-23-1765: Extreme Networks HiveOS ah_auth Stack-based Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Extreme Networks routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the ahauth service, which listens on UDP port 3001. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.
Other sources
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Extreme Networks routers. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2023-46272.
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-20728?
ZDI-CAN-20728 is classified as a critical severity vulnerability due to its potential for remote code execution.
How do I fix ZDI-CAN-20728?
To mitigate ZDI-CAN-20728, it is recommended to apply the latest security patches provided by Extreme Networks for HiveOS.
Who is affected by ZDI-CAN-20728?
ZDI-CAN-20728 affects installations of Extreme Networks routers running HiveOS that have the ah_auth service enabled.
Can ZDI-CAN-20728 be exploited without authentication?
Yes, ZDI-CAN-20728 can be exploited by network-adjacent attackers without requiring authentication.
What specific service is vulnerable in ZDI-CAN-20728?
The specific service vulnerable in ZDI-CAN-20728 is the ah_auth service, which listens on UDP port 3001.