This Metasploit module exploits a vulnerability in the Veritas Backup Exec Agent Browser service. This vulnerability occurs when a recv() call has a length value too long for the destination stack buffer. By sending an agent name value of 63 bytes or more, we can overwrite the return address of the recv function. Since we only have ~60 bytes of contiguous space for shellcode, a tiny findsock payload is sent which uses a hardcoded IAT address for the recv() function. This payload will then roll the stack back to the beginning of the page, recv() the real shellcode into it, and jump to it. This Metasploit module has been tested against Veritas 9.1 SP0, 9.1 SP1, and 8.6.
ade9d685f4e04cd21d9269d47266dd64392c89471c0f98b8675986dc2199bac2Remote stack overflow exploit for Veritas Backup Exec. Works for versions 9.1.4691.SP1, 9.1.4691.SP0, and 8.5.3572. Allows for a shell to be bound to port 101 or it spawn a reverse shell as well.
66d099090c243e36b9f7564b05d434f6f4b2b0d4406b819eb60322f646d6b2fciDEFENSE Security Advisory 12.16.2004-5 - Remote exploitation of a stack-based buffer overflow vulnerability in Veritas Backup Exec allows attackers to execute arbitrary code. The vulnerability specifically exists within the function responsible for receiving and parsing registration requests. The registration request packet contains the hostname and connecting TCP port of the client which is stored in an array on the stack. An attacker can send a registration request with an overly long hostname value to overflow the array and take control of the saved return address to execute arbitrary code.
a924ddb439be900e0f1e0eb48321e5e919eec5354788d3a7cc611c97a744d51f
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