Microsoft Windows PKINIT protocol obtain information
| win-pkinit-obtain-information (21626) |  Medium Risk |
Description:
Microsoft Windows could allow a remote attacker to obtain sensitive information, caused by a vulnerability in the PKINIT protocol. If a remote attacker with valid login credentials could inject himself into an authentication session when the client is attempting to authenticate to the domain controller, the attacker can spoof the domain controller. It would appear to the victim as if a legitimate server is being accessed, when the victim would be accessing a malicious server. An attacker could exploit this vulnerability to obtain sensitive information.
Platforms Affected:
- Microsoft, Windows 2000 SP4
- Microsoft, Windows 2003 Server x64
- Microsoft, Windows 2003 Server Itanium
- Microsoft, Windows 2003 Server
- Microsoft, Windows 2003 Server SP1
- Microsoft, Windows 2003 Server SP1 Itanium
- Microsoft, Windows XP SP1
- Microsoft, Windows XP SP2
- Microsoft, Windows XP Professional x64
Remedy:
Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS05-042. See References.
Consequences:
Obtain Information
References:
- CIAC Information Bulletin P-269, Vulnerabilities in Kerberos at http://www.ciac.org/ciac/bulletins/p-269.shtml.
- Microsoft Security Bulletin MS05-042, Vulnerabilities in Kerberos Could Allow Denial of Service, Information Disclosure, and Spoofing (899587) at http://www.microsoft.com/technet/security/Bulletin/MS05-042.mspx.
- BID-14520: Microsoft Windows Kerberos PKINIT Man In The Middle Vulnerability
- CVE-2005-1982: Unknown vulnerability in the PKINIT Protocol for Microsoft Windows 2000, Windows XP, and Windows Server 2003 could allow a local user to obtain information and spoof a server via a man-in-the-middle (MITM) attack between a client and a domain controller when PKINIT smart card authentication is being used.
- SA16368: Microsoft Windows Two Kerberos Vulnerabilities
- SECTRACK ID: 1014642: Microsoft Windows Kerberos and PKINIT Vulnerabilities Allow Denial of Service, Information Disclosure, and Spoofing
- US-CERT VU#477341: Microsoft PKINIT smart card logon vulnerable to information disclosure and spoofing
Reported:
Aug 09, 2005
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