Fortinet Discovers EMC NetWorker nsrexecd.exe Malicious Array Count Denial of Service Vulnerability
Fortinet's FortiGuard Labs has discovered malicious array count denial of service vulnerability in EMC NetWorker nsrexecd.exe.
SolutionsFortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:
Released Oct 02, 2008
Use the solution provided by EMC.
The RPC interface used by the affected EMC products does not properly enforce bounds checking on a parameter which is used to allocate memory on the heap. The vulnerable NetWorker products use the process "nsrexecd.exe". A remote attacker can exploit this by repeatedly sending requests to the RPC interface, each time allocating more and more memory. Eventually system resources will be exhausted, and denial of service is achieved.
Zhenhua Liu, Xiaopeng Zhang and Junfeng Jia of Fortinet's FortiGuard Global Security Research Team