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AL-2005.0023 -- Veritas confirms Backup Exec authentication vulnerability

Date: 13 August 2005
References: AL-2005.0021  AU-2005.0017  

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A  U  S  C  E  R  T                                           A  L  E  R  T

                       AL-2005.0023 -- AUSCERT ALERT
         Veritas confirms Backup Exec authentication vulnerability
                              13 August 2005


        AusCERT Alert Summary

Product:           Backup Exec for Windows Servers 10.0 and prior
                   Backup Exec for NetWare Servers 9.1 and prior
                   Backup Exec Remote Agent for Windows Servers
                   Backup Exec Remote Agent for Linux and Unix Servers
                   Backup Exec Remote Agent for NetWare
Operating System:  Windows
                   Novell NetWare
                   UNIX variants
Impact:            Read-only Data Access
                   Administrator Compromise
Access:            Remote/Unauthenticated

Ref:               AL-2005.0021

- --------------------------BEGIN INCLUDED TEXT--------------------


	VERITAS and Symantec have now confirmed the Backup Exec Remote Agent 
	authentication vulnerability described in AL-2005.0021, allowing 
	remote file access. [1][2][3]

	The vulnerable components are:
	o Backup Exec Remote Agent for Windows Servers (RAWS)
	o Backup Exec Remote Agent for Linux and Unix Servers (RALUS)
	o Backup Exec Remote Agent for NetWare (RANW)
	o Backup Exec media servers

	The vulnerability affects Backup Exec for Windows Servers versions
	8.6, 9.0, 9.1 and 10.0 as well as Backup Exec for NetWare Servers 
	prior to version 9.1.1158.3


	A remote attacker can download arbitrary files from the computers 
	where the Remote Agent is installed.

	In many cases the information downloaded may then be used to take 
	complete control of the computer.

	AusCERT advises that exploit code targeting the vulnerability has
	been publicly released, and it has been reported that this
	vulnerability is now being exploited in the wild.


	No patch is yet available for Backup Exec for Windows Servers.
	System administrators are advised to monitor the page referenced
	below for the availability of a patch. [1]

	A patch for Backup Exec for NetWare Servers is now available from 
	the VERITAS website. [2]
	AusCERT encourages administrators to evaluate their exposure and
	strongly consider implementing network and host filtering for TCP 
	port 10000.

	Administrators may also wish to implement intrusion detection rules 
	to detect attempts to exploit this vulnerability [4].


	[1] VERITAS Backup Exec for Windows Servers Security Advisory 278434

	[2] VERITAS Backup Exec for NetWare Servers Security Advisory 278431

	[3] Symantec Security Advisory

	[4] SANS Internet Storm Centre

	[5] FrSIRT Advisory

- --------------------------END INCLUDED TEXT--------------------

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