Document ID: 300471
http://support.veritas.com/docs/300471
E-Mail this document to a colleague
http://support.veritas.com/docs/300471
E-Mail this document to a colleague
Symantec Security Advisory SYM08-007: Multiple vulnerabilities in the Backup Exec 11d and 12.0 for Windows Servers scheduler
Details:
To which versions of Backup Exec can this hotfix be applied?
This hotfix can only be applied to the following versions of Backup Exec:
Backup Exec 11d for Windows Servers revision 6235 with Service Pack 2
Backup Exec 11d for Windows Servers revision 7170 with Service Pack 2
Backup Exec 12.0 for Windows Servers revision 1364
Symantec Response
Symantec product engineers have developed and released solutions for this issue through Symantec's LiveUpdate capability and support channels as indicated.
Symantec recommends all customers apply all updates to protect against threats of this nature.
Symantec knows of no exploitation of or adverse customer impact from these issues.
The patches listed above for affected products are also available from the following location:
Backup Exec 11.0.6235: http://support.veritas.com/docs/303030
Backup Exec 11.0.7170: http://support.veritas.com/docs/297620
Backup Exec 12.0.1364: http://support.veritas.com/docs/300287
Mitigation
Symantec has developed IDS signatures to detect and block attempts to exploit this issue.
Best Practices
As part of normal best practices, Symantec strongly recommends a multi-layered approach to security:
Credit
Symantec would like to thank JJ Reyes with Secunia Research for reporting these findings and coordinating closely with Symantec as we resolved the issues.
Symantec Security Advisory SYM08-007
28 February, 2008
Symantec's Backup Exec for Windows Server: Multiple Vulnerabilities in Scheduler
Revision History
Exploitation code has been found to be publicly available for this issue.
Severity
Medium
Overview
Vulnerabilities were reported in an ActiveX control that Symantec's Backup Exec for Windows Servers (BEWS) installs with its scheduler. Exploitation of these issues could possibly lead to unauthorized information disclosure, system information corruption or potentially allow arbitrary code execution in the context of the user's browser. However, successful exploitation requires specific conditions.
Because exploitation code has been found to be publicly available for this issue, it is recommended that all BEWS systems are patched with the hotfix mentioned in this article as soon as possible.
Affected Products
NOTE: ONLY the products and versions listed as affected above are vulnerable to these issues. This issue impacts the Backup Exec media server only. Remote client agents are NOT affected.
How to obtain the patch:
28 February, 2008
Symantec's Backup Exec for Windows Server: Multiple Vulnerabilities in Scheduler
Revision History
Exploitation code has been found to be publicly available for this issue.
Severity
Medium
| Exploit publicly available | Yes |
|---|---|
| Remote Access | Yes |
| Local Access | No |
| Authentication Required | Authenticated user involvement required |
Overview
Vulnerabilities were reported in an ActiveX control that Symantec's Backup Exec for Windows Servers (BEWS) installs with its scheduler. Exploitation of these issues could possibly lead to unauthorized information disclosure, system information corruption or potentially allow arbitrary code execution in the context of the user's browser. However, successful exploitation requires specific conditions.
Because exploitation code has been found to be publicly available for this issue, it is recommended that all BEWS systems are patched with the hotfix mentioned in this article as soon as possible.
Affected Products
| Product | Version | Build | Solution |
|---|---|---|---|
| Symantec Backup Exec for Windows | 11d | 11.0.6235 | Hotfix Available |
| Symantec Backup Exec for Windows | 11d | 11.0.7170 | Hotfix Available |
| Symantec Backup Exec for Windows | 12 | 12.0.1364 | Hotfix Available |
NOTE: ONLY the products and versions listed as affected above are vulnerable to these issues. This issue impacts the Backup Exec media server only. Remote client agents are NOT affected.
How to obtain the patch:
For 32bit
Media Servers:
Backup Exec
11.0.6235: http://support.veritas.com/docs/303030
Backup Exec
11.0.7170: http://support.veritas.com/docs/303199
Backup Exec
12.0.1364: http://support.veritas.com/docs/300632
For 64bit Media Servers:
Backup Exec
11.0.6235:
http://support.veritas.com/docs/303030
Backup Exec
11.0.7170: http://support.veritas.com/docs/303200
Backup Exec
12.0.1364: http://support.veritas.com/docs/300633
To which versions of Backup Exec can this hotfix be applied?
This hotfix can only be applied to the following versions of Backup Exec:
Backup Exec 11d for Windows Servers revision 6235 with Service Pack 2
Backup Exec 11d for Windows Servers revision 7170 with Service Pack 2
Backup Exec 12.0 for Windows Servers revision 1364
Details
Symantec was
alerted to multiple vulnerabilities consisting of stack overflows and unsafe
method calls that Secunia Research discovered in an ActiveX control, installed
with BEWS as a part of the scheduler component. Although this control was not
intended to be called via an external web browser, it failed to properly parse
or validate external input. This improper validation could potentially
result in a browser crash or it could possibly permit unauthorized methods calls
allowing access to overwrite or corrupt files. Unauthorized access to the
vulnerable control could also result in possible buffer overflows with the
potential for malicious code execution in the context of the targeted user's
browser.
The impact of
this threat is considerably lessened as it would require authorized user
involvement in any attempt to compromise the targeted system. To exploit
successfully, an attacker would need to be aware of the exact path to the
vulnerable control and be able to effectively entice a user to upload and
execute malicious scripts via HTML email or visit a malicious web site hosting
malicious code.
Symantec Response
Symantec product engineers have developed and released solutions for this issue through Symantec's LiveUpdate capability and support channels as indicated.
Symantec recommends all customers apply all updates to protect against threats of this nature.
Symantec knows of no exploitation of or adverse customer impact from these issues.
The patches listed above for affected products are also available from the following location:
Backup Exec 11.0.6235: http://support.veritas.com/docs/303030
Backup Exec 11.0.7170: http://support.veritas.com/docs/297620
Backup Exec 12.0.1364: http://support.veritas.com/docs/300287
Mitigation
Symantec has developed IDS signatures to detect and block attempts to exploit this issue.
Best Practices
As part of normal best practices, Symantec strongly recommends a multi-layered approach to security:
- Run under the principle of least privilege where possible.
- Keep all operating systems and applications updated with the latest vendor patches.
- Users, at a minimum, should run both a personal firewall and antivirus application with current updates to provide multiple points of detection and protection to both inbound and outbound threats.
- Users should be cautious of mysterious attachments and executables delivered via email and be cautious of browsing unknown/untrusted websites or opening unknown/untrusted URL links.
- Do not open unidentified attachments or executables from unknown sources or that you didn't request or were unaware of.
- Always err on the side of caution. Even if the sender is known, the source address may be spoofed.
If in
doubt, contact the sender to confirm they sent it and why before opening the
attachment. If still in doubt, delete the attachment without opening
it.
Credit
Symantec would like to thank JJ Reyes with Secunia Research for reporting these findings and coordinating closely with Symantec as we resolved the issues.
References
The Common
Vulnerabilities and Exposures (CVE) initiative has assigned:
CVE-2007-6016
to the buffer overflow issue
CVE-2007-6017
to the unsafe methods issue
These issues are candidates for inclusion in the CVE list
( http://cve.mitre.org ), which
standardizes names for security issues.
SecurityFocus ( http://www.securityfocus.com/ ) has assigned Bugtraq ID BID 26904 for the buffer overflows and BID 28008 for the unsafe methods for inclusion in the SecurityFocus vulnerability database.
SecurityFocus ( http://www.securityfocus.com/ ) has assigned Bugtraq ID BID 26904 for the buffer overflows and BID 28008 for the unsafe methods for inclusion in the SecurityFocus vulnerability database.
Related Documents:
http://support.veritas.com/docs/300287
http://support.veritas.com/docs/300632
http://support.veritas.com/docs/300633
http://support.veritas.com/docs/303030
http://support.veritas.com/docs/303031
http://support.veritas.com/docs/303199
http://support.veritas.com/docs/303200
http://support.veritas.com/docs/300287
http://support.veritas.com/docs/300632
http://support.veritas.com/docs/300633
http://support.veritas.com/docs/303030
http://support.veritas.com/docs/303031
http://support.veritas.com/docs/303199
http://support.veritas.com/docs/303200
Products Applied:
Backup Exec for Windows Servers 11d (11.0), 11d (11.0) 6235, 11d (11.0) 7170, 11d (11.0) 7170 SP1, 11d (11.0) 7170 SP2, 12.0
Backup Exec for Windows Servers 11d (11.0), 11d (11.0) 6235, 11d (11.0) 7170, 11d (11.0) 7170 SP1, 11d (11.0) 7170 SP2, 12.0
Last Updated: June 04 2008 10:06 PM GMT
Expires on: 02-27-2009
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Expires on: 02-27-2009
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Subjects:
Backup Exec for Windows Servers
Application: Troubleshooting
Publishing Status: Techalert
Backup Exec for Windows Servers
Application: Troubleshooting
Publishing Status: Techalert
Languages:
Russian, English (US), French, German, Spanish, Italian, Japanese, Chinese, Korean
Russian, English (US), French, German, Spanish, Italian, Japanese, Chinese, Korean
Operating Systems:
Windows 2000
Windows 2000
Advanced Server SP4, Advanced Server Windows Powered SP4, Datacenter Server SP4, Professional SP4, Server SP4
Windows NT Small Business Server
2000
Windows XP
Pro 5.1 64 bit SP2, Pro 5.1 SP2
Windows Server 2003
DataCenter, DataCenter (x64), DataCenter SP1, DataCenter SP1(x64), DataCenter SP2, Datacenter SP2(x64), Enterprise (x64), Enterprise SP1(IA64), Enterprise SP1(x64), Enterprise SP2, Enterprise SP2(x64), Enterprise Server, Enterprise ServerSP1, R2, Standard Server, Standard Server SP1, Standard Server SP1 (x64), Standard Server SP2, Standard Server SP2 (x64), Standard Server(x64), Storage Server, Storage Server SP1, Storage Server SP2, Web Server, Web Server SP1, Web Server SP2
Windows Small Business Server 2003
Premium Edition, Premium Edition R2, Premium Edition SP1, Standard Edition, Standard Edition R2, Standard Edition SP1, Standard Edition SP2
Windows Server 2008
DataCenter (x64-64bit), DataCenter (x86-32bit), Enterprise (x64-64bit), Enterprise (x86-32bit), Standard (x64-64bit), Standard (x86-32bit), Web Server (x64-64bit), Web Server (x86-32bit)
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