SigPlus Pro ActiveX control KeyString buffer overflow

sigplus-keystring-bo (65114) The risk level is classified as HighHigh Risk

Description:

The SigPlus Pro ActiveX control is vulnerable to a heap-based buffer overflow. By persuading a victim to visit a specially-crafted Web page that passes an overly long string argument to the KeyString method, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the victim's browser to crash.

*CVSS:

Base Score: 9.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 6.9
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of SigPlus Pro ActiveX control (4.29 or later), available from the Topaz Systems Web site. See References.

References:

  • Secunia Research 03/02/2011: SigPlus Pro ActiveX Control Buffer Overflow Vulnerabilities.
  • Topaz Systems Web site: SigPlus Pro ActiveX.
  • BID-46128: SigPlus Pro ActiveX Control Multiple Vulnerabilities
  • CVE-2011-0324: Multiple heap-based buffer overflows in Topaz Systems SigPlus Pro ActiveX Control 3.95, and possibly other versions before 4.29, allow remote attackers to execute arbitrary code via a long (1) KeyString property, (2) NewPath parameter to the SetLocalIniFilePath method, or (3) NewPortPath parameter to the SetTabletPortPath method.
  • SA42800: SigPlus Pro ActiveX Control Multiple Vulnerabilities

Platforms Affected:

  • Topaz Systems Sigplus Pro ActiveX Control 3.95

Reported:

Feb 03, 2011

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