Symantec Veritas Netbackup 5.0/5.1 and 6.0 Logic Vulnerability

Notification Type: IBM Internet Security Systems Protection Advisory
Notification Date: December 13, 2006
Notification Version: 1.0
   
Name: Symantec Veritas Netbackup 5.0/5.1 and 6.0 Logic Vulnerability
Public disclosure/
In the wild date:		 Dec 13, 2006 (vuln disclosure)
CVE: CVE-2006-4902
Description: IBM Internet Security Systems X-Force has discovered and shipped protection for a remotely exploitable vulnerability in Veritas Netbackup. This logic vulnerability allows remote attackers to execute commands on vulnerable machines.
Discovered by: Paul Mehta

 

ISS Coverage
Product Content Version
Network Sensor 7.0
Proventia A
Proventia IPS (G/GX) prior to Firmware Version 1.2
Server Sensor 7.0		 24.39
Proventia IPS (G/GX) Firmware Version 1.2 or
later
Proventia Multifunction Appliance
Proventia Server (Linux)		 1.78
Proventia Server (Windows) 1.0.914.1780
Proventia Desktop 8.0.x.1780
RealSecure Desktop 7.0 (AM SP 6.59 or 7.59) EPJ
BlackICE PC Protection 3.6 CPJ
Enterprise Scanner tbd
Internet Scanner 7.2.tbd
Propagation Techniques ISS Protection Available
remote exploit Backup_Invalid_Input July 14, 2006
Detection Techniques ISS Detection Available
network assessment tbd tbd

Detailed Description
Business Impact: A successful compromise of an affected version of Veritas Netbackup leaves the attacker in complete control of the targeted host, which can result in exposure of confidential information, loss of productivity, and further network compromise.
CVSS: Base Score: 6.0
Access Vector: Remote
Access Complexity: Low
Authentication: Required
Confidentiality Impact: Complete
Integrity Impact: Complete 
Availability Impact: Complete 
Impact Bias: Normal 
Adjusted Temporal Score: 4.4 
  Exploitability: Unproven 
Remediation Level: Unavailable 
Report Confidence: Confirmed 
Affected Products:

Symantec Veritas Netbackup 5.0/5.1
Symantec Veritas Netbackup 6.0

Technical Description: Veritas Netbackup is a data protection system which scales to Unix, Windows, Linux and Netware environments. It allows remote users to enable backup and recovery operations. Veritas Netbackup is widely deployed in enterprise environments.

A logic vulnerability exists in the main Netbackup service bpcd.exe which allows remote users to use command chaining to have malicious commands executed by the service. Several flawed checks for command chaining can be bypassed, allowing malicious commands to be parsed and executed by the process.

Successful exploitation of this vulnerability does not require any user interaction.

References
XFDB: http://xforce.iss.net/xforce/xfdb/27638
Vendor Bulletin: http://www.symantec.com/avcenter/security/Content/2006.12.13a.html  

Revision History
Dec 13, 2006 Initial release.
Jan 3, 2007 Added discoverer info.


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IBM Internet Security Systems is the trusted security advisor to thousands of the world's leading businesses and governments, providing pre-emptive protection for networks, desktops and servers. An established leader in security since 1994, the IBM Proventia® integrated security platform is designed to automatically protect against both known and unknown threats, helping to keep networks up and running and shielding customers from online attacks before they impact business assets. IBM Internet Security Systems products and services are based on the proactive security intelligence of its X-Force® research and development team – the unequivocal world authority in vulnerability and threat research. The Internet Security Systems product line is also complemented by comprehensive Managed Security Services and Professional Security Services. For more information, visit the Internet Security Systems Web site at www.iss.net or call 800-776-2362.