CVE-1999-0391 Auth bypass in n/a
An attacker can replay SMB authentication challenges to impersonate users on Windows 95 and 98 systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-1999-0391?
CVE-1999-0391 is a high-severity authentication bypass vulnerability in Microsoft Windows 2000, published on 29 Sep 1999. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The cryptographic challenge of SMB authentication in Windows 95 and Windows 98 can be reused, allowing an attacker to replay the response and impersonate a user.
Which versions are affected by CVE-1999-0391?
It affects 3 products.
Products include Microsoft Terminal Server, Microsoft Windows 2000, Microsoft Windows Nt.
How do I fix CVE-1999-0391?
No fix has been published for CVE-1999-0391 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-1999-0391 being exploited?
There is no known exploitation of CVE-1999-0391 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 2000
- CVE-2006-4465 Code injection in n/a
- CVE-2007-2593 Security feature bypass in n/a
- CVE-1999-0909 Security feature bypass in n/a
- CVE-2000-0259 The default permissions for the Cryptography\Offload registry key used by the OffloadModExpo in Windows NT 4.0 allows local users to obtain
- CVE-2001-0540 Denial of service in n/a
Sources
Also known as GHSA-9xx2-9vgq-cg78.