Title: Computer Associates BrightStor ARCServe BackUp LGServer Remote Heap 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.
BrightStor ARCServe BackUp is prone to a remote heap-based buffer-overflow vulnerability due to inadequate bounds checks on user-supplied data prior to copying it to an insufficiently sized buffer. This issue affects the handling of TCP requests over TCP port 2200 by the Mobile Backup Service process (LGSERVER.EXE).
Specifically, packets containing '\x4e\x3d\x2c\x1b' followed by 65535 characters will cause heap memory to be overwritten and the process to terminate. An attacker can leverage this issue to execute arbitrary code with SYSTEM-level privileges.
A successful attack can result in the complete compromise of affected computers. Failed attempts will likely cause denial-of-service conditions.
Note that only applications on the Windows operating system are affected.
Affected Products:
- Computer Associates ARCserve Backup for Laptops and Desktops 11.0
- Computer Associates ARCserve Backup for Laptops and Desktops 11.1
- Computer Associates ARCserve Backup for Laptops and Desktops 11.1 SP1
References:
- Computer Associates: BrightStor ARCserve Backup for Windows Product Page
- Computer Associates: Important Security Notice for BrightStor ARCserve Backup for Laptops & Desktops
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