| Microsoft Windows XP Redirector Local Buffer Overflow
Author : Nsfocus Security Team <security@NSFOCUS.COM>
NSFOCUS Security Advisory(SA2003-01)
Topic: Microsoft Windows XP Redirector Local Buffer Overflow Vulnerability
Release Date: 2003-3-27
CVE CAN ID: CAN-2003-0004
- - Microsoft Windows XP
- - Microsoft Windows XP SP1
NSFOCUS Security Team has found a buffer overflow vulnerability in Microsoft
Windows XP Redirector. Exploiting the vulnerability local attackers
could crash the system or gain local system privilege by carefully crafted
The Windows Redirector is used to access files, whether local or remote.It
is used to access network shares by net use command.
A security vulnerability exists in the Windows Redirector on Windows
unchecked length in handling the received parameter information causes
buffer overflow vulnerability. Exploiting the vulnerability a non-privileged
user could cause system blue screen and reboot. If the code was carefully
crafted, attackers could execute arbitrary command in system privilege.
present no remote exploitation method has been found.
Only Windows XP is vulnerable to the issue. Windows NT 4.0, Windows NT
Terminal Server Edition, and Windows 2000 do not contain the vulnerable
and are not affected by this vulnerability.
Enter the following command as a non-privileged user in the command line
c:\> net use \\AAAA...AAA[about 1000-2000 'A' characters]\A
Windows XP will become blue screen or reboot immediately.
Note: Attackers have to be able to login interactively.
Prohibit untrusted user login to your system.
Microsoft has issued a Security Bulletin(MS03-005) and the related patch.
Detailed Microsoft Security Bulletin is available at:
Patches are available at:
. Microsoft Windows XP 32-bit Edition:
. Microsoft Windows XP 64-bit Edition:
The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CAN-2003-0004 to this issue. This is a candidate for inclusion in
CVE list (http://cve.mitre.org), which standardizes names for security
problems. Candidates may change significantly before they become official
THE INFORMATION PROVIDED IS RELEASED BY NSFOCUS "AS IS" WITHOUT
OF ANY KIND. NSFOCUS DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED,
EXCEPT FOR THE WARRANTIES OF MERCHANTABILITY. IN NO EVENTSHALL NSFOCUS
BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT,
INCIDENTAL,CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES,
EVEN IF NSFOCUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
DISTRIBUTION OR REPRODUCTION OF THE INFORMATION IS PROVIDED THAT THE
ADVISORY IS NOT MODIFIED IN ANY WAY.
NSFOCUS Security Team <firstname.lastname@example.org>
NSFOCUS INFORMATION TECHNOLOGY CO.,LTD