Kingcope has discovered a vulnerability in Microsoft Internet Information Services (IIS), which can be exploited by malicious users to cause a DoS (Denial of Service) or compromise a vulnerable system.
The vulnerability is caused due to a boundary error in the FTP server when processing NLST commands. This can be exploited to cause a stack-based buffer overflow by issuing a specially crafted NLST command.
Successful exploitation may allow execution of arbitrary code, but would usually require write permissions to create a directory with a specially crafted name.
The vulnerability is confirmed as a DoS in IIS 5.1 for Windows XP SP3 and in IIS 6.0 for Windows Server 2003, and reported as code execution in IIS 5.0 for Windows 2000 SP4. Other versions may also be affected.
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Subject: Microsoft Internet Information Services FTP Server NLST Buffer Overflow
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