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-23-1765?
The severity of ZDI-23-1765 is critical due to the potential for arbitrary code execution without authentication.
How do I fix ZDI-23-1765?
To mitigate ZDI-23-1765, apply the latest firmware update provided by Extreme Networks for HiveOS.
Who is affected by ZDI-23-1765?
ZDI-23-1765 affects installations of Extreme Networks routers running HiveOS.
What type of attackers can exploit ZDI-23-1765?
Network-adjacent attackers can exploit ZDI-23-1765 to execute arbitrary code.
What service is vulnerable in ZDI-23-1765?
The vulnerability in ZDI-23-1765 exists within the ah_auth service, which listens on UDP port 3001.