Title: SignKorea SKCommAX ActiveX Control Remote Buffer Overflow Vulnerability
Severity: HIGH
Description:
SignKorea SKCommAX ActiveX control is a web-based component for the SignKorea SKCommAX application.
SignKorea SKCommAX ActiveX control is prone to a buffer-overflow vulnerability because it fails to properly check boundaries on user-supplied data before copying it to an insufficiently sized buffer.
Specifically, this issue affects the 'pszUserID' parameter of the 'DownloadCertificateExt()' method.
A remote attacker may exploit this vulnerability by presenting a link to a victim user and enticing them to open it with the vulnerable application. The attacker can execute arbitrary machine code in the context of applications that employ the vulnerable controls (typically Microsoft Internet Explorer).
SignKorea SKCommAX ActiveX Control 7.2.0.2 and 6.6.0.1 are vulnerable to this issue; other versions may also be vulnerable.
Affected Products:
- SignKorea SKCommAX ActiveX Control 6.6.0.1
- SignKorea SKCommAX ActiveX Control 7.2.0.2
References:
- SignKorea: Vendor Homepage
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