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Symantec Backup Exec Job Engine Denial of Service
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SUMMARY
<http://www.symantec.com/business/products/overview.jsp?pcid=2244&pvid=57_1>
Symantec Backup Exec 11d for Windows Servers is "the gold standard in Windows
data recovery, providing cost-effective, high-performance, and certified
disk-to-disk-to-tape backup and recovery with available continuous data
protection for Microsoft Exchange, SQL, file servers, and workstations.
High-performance agents and options provide fast, flexible, granular protection
and recovery, and scalable management of local and remote server backups."
Secunia Research has discovered some vulnerabilities in Symantec Backup
Exec for Windows Servers, which can be exploited by malicious people to
cause a DoS (Denial of Service).
DETAILS
Vulnerable Systems:
* Symantec Backup Exec for Windows Servers version 11d (11.0 rev 7170)
1) A NULL-pointer dereference error in the Backup Exec Job Engine service
(bengine.exe) when handling exceptions can be exploited to crash the
service by sending a specially crafted packet to default port 5633/TCP.
2) Two integer overflow errors within the Backup Exec Job Engine service
can be exploited to e.g. cause the service to enter an infinite loop and
exhaust all available memory or consume large amounts of CPU resource by
sending a specially crafted packet to default port 5633/TCP.
Solution:
Apply hotfixes.
Build 11.0.6235: <http://support.veritas.com/docs/294241>
http://support.veritas.com/docs/294241
Build 11.0.7170: <http://support.veritas.com/docs/294237>
http://support.veritas.com/docs/294237
Time Table:
02/10/2007 - Vendor notified.
02/10/2007 - Vendor replied.
28/11/2007 - Public disclosure.
ADDITIONAL INFORMATION
The information has been provided by Secunia Research.
The original article can be found at:
<http://secunia.com/secunia_research/2007-74/>
http://secunia.com/secunia_research/2007-74/
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