Title: Computer Associates BrightStor ARCserve Backup MediaSVR.EXE Remote Buffer Overflow Vulnerability
Severity: CRITICAL
Description:
Computer Associates BrightStor ARCserve Backup products provide backup and restore protection for Windows, NetWare, Linux, and UNIX servers as well as Windows, Mac OS X, Linux, UNIX, AS/400, and VMS clients.
The application is affected by a remote buffer-overflow vulnerability because the application fails to perform proper bounds-checking on data supplied to the application.
Specifically, an attacker may connect to the 'Mediasrv.exe' service on the SUNRPC interface (TCP/UDP port 111) and cause a stack-based buffer-overflow on fixed-size stack buffers. To trigger this issue, the attacker can use multiple 'strncpy()' calls with user-definable lengths.
A remote attacker may exploit this issue to execute arbitrary code on a vulnerable computer with SYSTEM privileges. Failed exploit attempts may cause denial-of-service conditions.
NOTE: User interaction is not required to exploit this vulnerability.
Affected Products:
- Computer Associates BrightStor ARCServe Backup 11.1.0
- Computer Associates BrightStor ARCServe Backup 11.5
- Computer Associates BrightStor ARCServe Backup 9.01
- Computer Associates BrightStor ARCServe Backup for Windows 11.0.0
- Computer Associates BrightStor Enterprise Backup 10.5.0
- Computer Associates Business Protection Suite for Microsoft SBS Pre ed r2
- Computer Associates Business Protection Suite for Microsoft SBS Std Ed r2
- Computer Associates Business Protection Suite r2
- Computer Associates Server Protection Suite r2
References:
- Computer Associates: 34955 - CA BrightStor ARCserve Backup Mediasvr stack based buffer overflow vulne
- Computer Associates: BrightStor ARCserve Backup Product Page
- Computer Associates: Important Security Notice for BrightStor ARCserve Backup
- IBM Internet Security Systems X-Force: XFID 29343 - Computer Associates Brightstor ARCserve Mediasvr.exe Overflow
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