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Microsoft Exchange Internet Mail Service in Exchange Server 5.5 and Exchange 2000 improperly handles certain SMTP extended verb requests. A remote attacker can directly connect to the SMTP service and send a crafted extended verb request that can trigger memory exhaustion leading to denial of service; in Exchange 2000 this condition is reported as possibly triggering a buffer overflow.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository contains a single Metasploit module: 'ms03_046_exchange2000_xexch50.rb', which exploits a heap overflow vulnerability (CVE-2003-0714) in Microsoft Exchange 2000's SMTP service (XEXCH50 command). The exploit targets Exchange 2000 SP0 and SP3 on Windows 2000 SP4. It works by sending crafted SMTP commands to port 25, triggering a heap overflow via the XEXCH50 command, and delivering a customizable Metasploit payload (typically a shell). The exploit is noted as highly unreliable, often requiring many attempts to succeed. The module includes options for configuring the target email addresses and the number of attempts. The only network endpoint involved is TCP port 25 (SMTP) on the target Exchange server. The code is written in Ruby and is structured as a standard Metasploit exploit module.
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