F-Secure
Tools
Microsoft Telnet Client Information Disclosure Weakness
| Report ID: | SA15690 |
| Source: | Secunia |
| Date of Discovery: | 14.06.2005 |
| Criticality: | Critical |
| Affects: | Microsoft Windows Server 2003 Datacenter Edition Microsoft Windows Server 2003 Enterprise Edition Microsoft Windows Server 2003 Standard Edition Microsoft Windows Server 2003 Web Edition Microsoft Windows XP Home Edition Microsoft Windows XP Professional |
| Compromise From: | From remote |
| Compromise Type: | Exposure of system information |
Summary
A vulnerability has been reported in Microsoft Windows, which can be exploited by malicious people to gain knowledge of various information.
Detailed Description
A vulnerability has been reported in Microsoft Windows, which can be exploited by malicious people to gain knowledge of various information.
The problem is caused due to a design error in the Telnet client when handling the NEW-ENVIRON
command. This can be exploited to gain knowledge of the session variables for a user, who has an open connection to a malicious Telnet server.
Successful exploitation requires that a user e.g. visits a malicious web site or is tricked into clicking a specially crafted link.
The problem is caused due to a design error in the Telnet client when handling the NEW-ENVIRON
command. This can be exploited to gain knowledge of the session variables for a user, who has an open connection to a malicious Telnet server.
Successful exploitation requires that a user e.g. visits a malicious web site or is tricked into clicking a specially crafted link.
Solution
Apply patches.
Microsoft Windows XP (requires SP1 or SP2):
http://www.microsoft.com/downloads/details.aspx?FamilyId=B8BA775E-E9A7-47E9-81A9-A68A71B9FAAC
Microsoft Windows XP 64-Bit Edition for Itanium (requires SP1):
http://www.microsoft.com/downloads/details.aspx?FamilyId=C6161D9E-1672-479E-8BAF-754A64DFAB47
Microsoft Windows XP 64-Bit Edition Version 2003 for Itanium :
http://www.microsoft.com/downloads/details.aspx?FamilyId=C23A4E16-E228-4A80-A4CB-9DCEF462B97A
Microsoft Windows XP Professional x64 Edition:
http://www.microsoft.com/downloads/details.aspx?FamilyId=B281550B-8FAE-4FF3-9BB7-E4BA325779B9
Microsoft Windows Server 2003:
http://www.microsoft.com/downloads/details.aspx?FamilyId=22095E78-A559-40EA-8B65-9C727F4E752F
Microsoft Windows Server 2003 for Itanium-based systems:
http://www.microsoft.com/downloads/details.aspx?FamilyId=C23A4E16-E228-4A80-A4CB-9DCEF462B97A
Microsoft Windows Server 2003 x64 Edition:
http://www.microsoft.com/downloads/details.aspx?FamilyId=DCC6840F-E626-4266-A63A-CDDEC0EC44D6
Microsoft Windows Services for UNIX 3.5 (running on Windows 2000):
http://www.microsoft.com/downloads/details.aspx?FamilyId=7c3dd615-b82d-4520-9c3a-376283b01d5b
Microsoft Windows Services for UNIX 3.0 (running on Windows 2000):
http://www.microsoft.com/downloads/details.aspx?FamilyId=8eaad650-54db-44bc-ac9b-fc8a50f5a3b5
Microsoft Windows Services for UNIX 2.2 (running on Windows 2000):
http://www.microsoft.com/downloads/details.aspx?FamilyId=32c4e286-2c4d-491a-9e05-4ca0b055d5dc
Microsoft Windows Services for UNIX 2.1 (running on Windows 2000):
http://www.microsoft.com/downloads/details.aspx?FamilyId=a41c701c-c0bb-40b3-88c5-ccc484202b2c
Microsoft Windows Services for UNIX 2.0 (running on Windows 2000):
http://www.microsoft.com/downloads/details.aspx?FamilyId=bda20bf9-6abf-487d-9334-c75fd7227274
Microsoft Windows XP (requires SP1 or SP2):
http://www.microsoft.com/downloads/details.aspx?FamilyId=B8BA775E-E9A7-47E9-81A9-A68A71B9FAAC
Microsoft Windows XP 64-Bit Edition for Itanium (requires SP1):
http://www.microsoft.com/downloads/details.aspx?FamilyId=C6161D9E-1672-479E-8BAF-754A64DFAB47
Microsoft Windows XP 64-Bit Edition Version 2003 for Itanium :
http://www.microsoft.com/downloads/details.aspx?FamilyId=C23A4E16-E228-4A80-A4CB-9DCEF462B97A
Microsoft Windows XP Professional x64 Edition:
http://www.microsoft.com/downloads/details.aspx?FamilyId=B281550B-8FAE-4FF3-9BB7-E4BA325779B9
Microsoft Windows Server 2003:
http://www.microsoft.com/downloads/details.aspx?FamilyId=22095E78-A559-40EA-8B65-9C727F4E752F
Microsoft Windows Server 2003 for Itanium-based systems:
http://www.microsoft.com/downloads/details.aspx?FamilyId=C23A4E16-E228-4A80-A4CB-9DCEF462B97A
Microsoft Windows Server 2003 x64 Edition:
http://www.microsoft.com/downloads/details.aspx?FamilyId=DCC6840F-E626-4266-A63A-CDDEC0EC44D6
Microsoft Windows Services for UNIX 3.5 (running on Windows 2000):
http://www.microsoft.com/downloads/details.aspx?FamilyId=7c3dd615-b82d-4520-9c3a-376283b01d5b
Microsoft Windows Services for UNIX 3.0 (running on Windows 2000):
http://www.microsoft.com/downloads/details.aspx?FamilyId=8eaad650-54db-44bc-ac9b-fc8a50f5a3b5
Microsoft Windows Services for UNIX 2.2 (running on Windows 2000):
http://www.microsoft.com/downloads/details.aspx?FamilyId=32c4e286-2c4d-491a-9e05-4ca0b055d5dc
Microsoft Windows Services for UNIX 2.1 (running on Windows 2000):
http://www.microsoft.com/downloads/details.aspx?FamilyId=a41c701c-c0bb-40b3-88c5-ccc484202b2c
Microsoft Windows Services for UNIX 2.0 (running on Windows 2000):
http://www.microsoft.com/downloads/details.aspx?FamilyId=bda20bf9-6abf-487d-9334-c75fd7227274
CVE Reference
CVE-2005-1205