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[Full-disclosure] iDEFENSE Security Advisory 11.10.05: Stack Overflow in Veritas Netbackup Enterprise Server
From: iDEFENSE Labs (labs-no-replyidefense.com)
Date: Thu Nov 10 2005 - 18:06:25 CST
Stack Overflow in Veritas Netbackup Enterprise Server
iDEFENSE Security Advisory 11.10.05
November 10, 2005
VERITAS NetBackup Enterprise Server delivers mainframe-class data
protection for the largest UNIX, Windows, Linux, and NetWare enterprise
environments, especially for corporate data centers.
VERITAS NetBackup Server software is cost-effective heterogeneous backup and
recovery solution designed for mid-size organizations, workgroups, and
Exploitation of a buffer overflow vulnerability in Veritas Netbackup
could lead to a remote Denial Of Service or remote code execution. The
Veritas Netbackup Volume Manager keeps track of the location of volumes
(tapes) needed for backup or restore.
By sending a specially crafted packet to the Volume Manager stack overflow
This is caused by improper bounds checking.
Exploitation does not require authentication, thereby allowing any remote
attacker to take over the entire system or to disrupt the backup
The following versions are confirmed vulnerable:
- Veritas Netbackup 5.0 with MP1 (vmd.exe 22.214.171.1240)
- Veritas Netbackup 5.0 with MP2 (vmd.exe 126.96.36.1992)
- Veritas Netbackup 5.0 with MP3 (vmd.exe 188.8.131.527)
- Veritas Netbackup 5.0 with MP4 (vmd.exe 184.108.40.2062)
- Veritas Netbackup 5.0 with MP5 (vmd.exe 220.127.116.117)
- Veritas Netbackup 5.1 without MP (vmd.exe 18.104.22.168)
- Veritas Netbackup 5.1 with MP1 (vmd.exe 22.214.171.124)
- Veritas Netbackup 5.1 with MP2 (vmd.exe 126.96.36.199)
- Veritas Netbackup 5.1 with MP3A (vmd.exe 188.8.131.52)
Use a firewall to restrict incoming connections to trusted workstations
running the Backup Exec client software, which uses port 13701 TCP.
Latter details released by Symantec state that the vulnerable code may
be able to be exploited through other NetBackup ports/services.
VI. VENDOR RESPONSE
The vendor has released the following advisory to address this
Patches for NetBackup 5.0 and 5.1 are available from the following location:
VII. CVE INFORMATION
The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CAN-2005-3116 to this issue. This is a candidate for inclusion in
the CVE list (http://cve.mitre.org), which standardizes names for
VIII. DISCLOSURE TIMELINE
09/14/2005 Initial vendor notification
09/14/2005 Initial vendor response
11/10/2005 Public disclosure
The discoverer of this vulnerability wishes to remain anonymous.
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X. LEGAL NOTICES
Copyright C 2005 iDEFENSE, Inc.
Permission is granted for the redistribution of this alert
electronically. It may not be edited in any way without the express
written consent of iDEFENSE. If you wish to reprint the whole or any
part of this alert in any other medium other than electronically, please
email customerserviceidefense.com for permission.
Disclaimer: The information in the advisory is believed to be accurate
at the time of publishing based on currently available information. Use
of the information constitutes acceptance for use in an AS IS condition.
There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct, indirect,
or consequential loss or damage arising from use of, or reliance on,
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