12418 : VERITAS Backup Exec Registration Request Remote Overflow
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Info

Last Modified

10 months ago

Percent Complete

100%

Disclosure

Dec 16, 2004

Discovery

Nov 02, 2004

Dates

Exploit

Jan 05, 2005

Solution

Unknown

Description

A remote overflow exists in Veritas Backup Exec for Windows. The name server registration service (benetns.exe) fails to validate the client hostname field during the registration process, resulting in a stack-based buffer overflow. With a specially crafted request, an attacker can cause custom code to run in the processes's current context, which is typically that of domain administrator. This can result in a loss of integrity.

Classification

Location: Remote/Network Access Required
Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Available
Disclosure: OSVDB Verified

Solution

Upgrade to version 8.60.3878 Hotfix 68 or version 9.1.4691 Hotfix 40 or higher, as both have been reported by the vendor to fix this vulnerability. It is also possible to mitigate the flaw by implementing the following workaround(s): Disallow untrusted clients to connect to the affected service by blocking access to the Generic Remote File System (GRFS) port (usually 6101/TCP).

Products

Veritas
Watch-list
Backup Exec
Watch-list
8.60.3878
9.1.4691

References

Tools & Filters

Nessus

16230 16232

Snort

3084

Credit

  • Patrik Karlsson - patrikBrand New Doo Doocqure.net - cqure.net

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