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Microsoft RDP Server Private Key Information Disclosure Vulnerability

Information

Severity

Severity

Medium

Family

Family

Windows

CVSSv2 Base

CVSSv2 Base

6.4

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:N

Solution Type

Solution Type

Vendor Wont Fix

Created

Created

12 years ago

Modified

Modified

5 years ago

Summary

This host is running Remote Desktop Protocol server and is prone to information disclosure vulnerability.

Insight

Insight

The flaw is due to RDP server which stores an RSA private key used for signing a terminal server's public key in the mstlsapi.dll library, which allows remote attackers to calculate a valid signature and further perform a man-in-the-middle (MITM) attacks to obtain sensitive information.

Affected Software

Affected Software

All Microsoft-compatible RDP (5.2 or earlier) software.

Solution

Solution

No known solution was made available for at least one year since the disclosure of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer release, disable respective features, remove the product or replace the product by another one. A Workaround is to connect only to terminal services over trusted networks.

Common Vulnerabilities and Exposures (CVE)