Microsoft Windows Remote Desktop Protocol could allow an attacker to monitor keystrokes
| win-rdp-keystroke-monitoring (10122) |  Low Risk |
Description:
Microsoft Windows XP, Windows 2000, and Windows .NET Standard Server could allow a remote attacker to obtain sensitive information, caused by a vulnerability in the way keystrokes are transmitted using Microsoft's Remote Desktop Protocol (RDP) version 5.0. When transmitting RDP input, each key event type uses the same checksum and is sent as a 12 byte packet. This could allow an attacker using a network sniffing tool to monitor RDP traffic and obtain encrypted keystrokes. If an attacker could decipher these keystrokes, the attacker could potentially obtain sensitive information, such as the user's password.
Platforms Affected:
- Microsoft, .NET Windows Server beta3 Standard
- Microsoft, Windows 2000
- Microsoft, Windows XP
Remedy:
Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS02-051. See References.
For Windows 2000:
Microsoft originally provided a patch for this vulnerability in MS02-051, but it has been superseded by the patch released with MS04-011. See References.
Consequences:
Obtain Information
References:
- BugTraq Mailing List, Mon Sep 16 2002 - 03:52:00 CDT , Microsoft Windows Remote Desktop Protocol checksum and keystroke vulnerabilities at http://archives.neohapsis.com/archives/bugtraq/2002-09/0195.html.
- Microsoft Security Bulletin MS02-051, Cryptographic Flaw in RDP Protocol can Lead to Information Disclosure (Q324380) at http://www.microsoft.com/technet/security/bulletin/ms02-051.mspx.
- Microsoft Security Bulletin MS04-011, Security Update for Microsoft Windows (835732) at http://www.microsoft.com/technet/security/bulletin/ms04-011.mspx.
- BID-5712: Microsoft Windows RDP Keystroke Injection Vulnerability
Reported:
Sep 16, 2002
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