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Veritas Backup Exec Agent Remote Code Execution

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Veritas Backup Exec Agent Remote Code Execution

Disclosed
03/01/2021
Created
09/23/2022

Description

Veritas Backup Exec Agent supports multiple authentication schemes and SHA authentication is one of them. This authentication scheme is no longer used within Backup Exec versions, but hadn’t yet been disabled. An attacker could remotely exploit the SHA authentication scheme to gain unauthorized access to the BE Agent and execute an arbitrary OS command on the host with NT AUTHORITY\SYSTEM or root privileges depending on the platform. The vulnerability presents in 16.x, 20.x and 21.x versions of Backup Exec up to 21.2 (or up to and including Backup Exec Remote Agent revision 9.3)

Author(s)

  • Alexander Korotin <0xc0rs@gmail.com>

Platform

Linux,Windows

Development

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/multi/veritas/beagent_sha_auth_rce
msf exploit(beagent_sha_auth_rce) > show targets
    ...targets...
msf exploit(beagent_sha_auth_rce) > set TARGET < target-id >
msf exploit(beagent_sha_auth_rce) > show options
    ...show and set options...
msf exploit(beagent_sha_auth_rce) > exploit

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