British Telecommunications Business and Consumer webhelper ActiveX control buffer overflow

british-btwebcontrol-bo (34589) The risk level is classified as HighHigh Risk

Description:

The British Telecommunications Business Connect and Consumer webhelper (tbconnectwebcontrol.dll and btwebcontrol.dll) ActiveX controls are vulnerable to multiple buffer overflows. By persuading a victim to visit a specially-crafted Web page, a remote attacker could overflow a buffer and execute arbitrary code on the system with the privileges of the user or cause the victim's browser to crash.

*CVSS:

Base Score: 8
  Access Vector: Remote
  Access Complexity: High
  Authentication: Not Required
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 5.9
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

For Business Connect webhelper:
Upgrade to the latest version (1.0.0.7 or later), available from the British Telecommunications Web site. See References.

For Consumer webhelper:
Upgrade to the latest version (2.0.0.8 or later), available from the British Telecommunications Web site. See References.

References:

  • British Telecommunications Web site: Broadband Internet, mobile and fixed telecommunications products and service from BT.
  • BID-24216: British Telecommunications Webhelper Multiple Buffer Overflow Vulnerabilities
  • BID-24219: British Telecommunications Consumer Webhelper Multiple Buffer Overflow Vulnerabilities
  • CVE-2007-2982: Multiple buffer overflows in the British Telecommunications Business Connect webhelper ActiveX control before 1.0.0.7 in btbconnectwebcontrol.dll allow remote attackers to execute arbitrary code via unspecified vectors.
  • CVE-2007-2983: Multiple buffer overflows in the British Telecommunications Consumer webhelper ActiveX control before 2.0.0.8 in btwebcontrol.dll allow remote attackers to execute arbitrary code via unspecified vectors.
  • OSVDB ID: 36718: British Telecommunications Business Connect webhelper btbconnectwebcontrol.dll ActiveX Multiple Unspecified Overflows
  • OSVDB ID: 40771: British Telecommunications Business Connect webhelper btwebcontrol.dll ActiveX Multiple Unspecified Overflows
  • SA25472: British Telecommunications webhelper ActiveX Controls Vulnerabilities
  • US-CERT VU#210257: British Telecommunications Business Connect webhelper ActiveX control buffer overflows
  • US-CERT VU#686249: British Telecommunications Consumer webhelper ActiveX control buffer overflows

Platforms Affected:

  • British Telecommunications Business Connect webhelper prior to 1.0.0.7
  • British Telecommunications Consumer webhelper prior to 2.0.0.8

Reported:

May 29, 2007

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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