GEN:SID | 1:2114 |
Message | RSERVICES rexec password overflow attempt |
Summary | This event is generated when a remote attacker attempts to send a large number of null characters to port 512 on an internal server. This may indicate an attempt to exploit a buffer overflow condition in Pragma Systems TelnetServer 2000.
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Impact | Denial of service by anonymous, remote users.
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Detailed Information | Pragma Systems TelnetServer 2000 contains a vulnerability where a large number of null characters sent to the Telnet server's rexec port can crash the server.
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Affected Systems | Pragma Systems TelnetServer 2000
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Attack Scenarios | A remote attacker can send messages that contain a large number of null characters to the Telnet server, causing the server to crash.
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Ease of Attack | Simple. An exploit exists.
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Corrective Action | Upgrade to TelnetServer 2000 build 2 or higher.
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Additional References | Bugtraq http://www.securityfocus.com/bid/1605
CVE http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2000-0708
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