CVE-2009-1930 Auth bypass in n/a

What is CVE-2009-1930?

CVE-2009-1930 is a critical authentication bypass vulnerability in Microsoft Windows 2000, published on 12 Aug 2009. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-255

Which versions are affected by CVE-2009-1930?

It affects 5 products.

Products include Microsoft Windows 2000, Microsoft Windows 2003 Server, Microsoft Windows Server 2008, Microsoft Windows Vista, Microsoft Windows Xp.

How do I fix CVE-2009-1930?

No fix has been published for CVE-2009-1930 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2009-1930 being exploited?

There is no known exploitation of CVE-2009-1930 in the wild and no public exploit code.

Other vulnerabilities in Microsoft Windows 2000

• CVE-2008-4250 Microsoft Windows Buffer Overflow Exploited Critical 9.8
• CVE-2010-0232 Microsoft Windows Kernel Exception Handler Exploited High 7.8
• CVE-2009-1123 Microsoft Windows Improper Input Validation Exploited High 7.8
• CVE-2002-0367 Microsoft Windows Privilege Escalation Exploited High 7.8
• CVE-2010-0269 Memory corruption in n/a Critical 10.0

All Microsoft Windows 2000 vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-pfc2-9qhm-x6x5.