module

Veritas Backup Exec Name Service Overflow

Try Surface Command
Back to search
Disclosed
2004-12-16
Created
2018-05-30

Description

This 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
module has been tested against Veritas 9.1 SP0, 9.1 SP1, and
8.6.

Author

hdm x@hdm.io

Platform

Windows

References

Module Options

To display the available options, load the module within the Metasploit console and run the commands ‘show options’ or ‘show advanced’:


    msf > use exploit/windows/backupexec/name_service
    msf exploit(name_service) > show targets
        ...targets...
    msf exploit(name_service) > set TARGET < target-id >
    msf exploit(name_service) > show options
        ...show and set options...
    msf exploit(name_service) > exploit
Title
NEW

Explore Exposure Command

Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.

Try it today