Microsoft Internet Explorer 6.0 SP1 Terminal Service tsuserex.dll memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.6$0-$5k0.00

A vulnerability has been found in Microsoft Internet Explorer 6.0 SP1 (Web Browser) and classified as critical. Affected by this vulnerability is an unknown code block in the library tsuserex.dll of the component Terminal Service. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The Terminal Services COM object (tsuserex.dll) allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code by instantiating it as an ActiveX object in Internet Explorer 6.0 SP1 on Microsoft Windows 2003 EE SP1 CN.

The issue has been introduced in 09/09/2002. The weakness was published 08/18/2006 (Website). It is possible to read the advisory at xsec.org. This vulnerability is known as CVE-2006-4219 since 08/18/2006. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1439 days. During that time the estimated underground price was around $25k-$100k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (28444).

Productinfo

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Support

  • end of life

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
SourceFire IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

09/09/2002 🔍
08/17/2006 +1438 days 🔍
08/17/2006 +0 days 🔍
08/18/2006 +1 days 🔍
08/18/2006 +0 days 🔍
08/18/2006 +0 days 🔍
11/20/2006 +94 days 🔍
03/12/2015 +3034 days 🔍
05/07/2019 +1517 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: xsec.org
Status: Not defined

CVE: CVE-2006-4219 (🔍)
X-Force: 28444
Vulnerability Center: 13118 - Microsoft Internet Explorer 6.0 Terminal Services COM Object Vulnerability, Medium
SecurityFocus: 19570 - Microsoft Internet Explorer TSUserEX.DLL ActiveX Control Memory Corruption Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/12/2015 15:51
Updated: 05/07/2019 12:41
Changes: 03/12/2015 15:51 (58), 05/07/2019 12:41 (11)
Complete: 🔍

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