The Telnet service in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 Gold and SP2 allows remote Telnet servers to execute arbitrary code on a client machine by replaying the NTLM credentials of a client user, aka "Telnet Credential Reflection Vulnerability," a related issue to CVE-2000-0834.

According to the version number obtained by NTLM the remote host has Windows Server 2008 installed. The host may be vulnerable to a number of vulnerabilities including remote unauthenticated code execution.

The remote Telnet client does not correctly opt in to NTLM credential- reflection protections, which ensure that a user's credentials are not reflected back and used against the user.

If a remote attacker can trick a user on the host into connecting to a malicious server with an affected version of the Telnet client, he can leverage this issue to gain the rights of that user and do anything that he has privileges to do.

ID	Name	Product	Family	Severity
108811	Windows Server 2008 Critical RCE Vulnerabilities (uncredentialed) (PCI/DSS)	Nessus	Windows	critical
40561	MS09-042: Vulnerability in Telnet Could Allow Remote Code Execution (960859)	Nessus	Windows : Microsoft Bulletins	high

Detections

Analytics

CVE-2009-1930

critical

Tenable Plugins

critical

high