CVE Catalog

CVE-2006-2918

Medium
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Elevated risk
1.58%

74th percentile - higher than 74% of all known CVEs

Summary

The Lanap BotDetect ASP.NET CAPTCHA component before 1.5.4.0 stores the UUID and hash for a CAPTCHA in the ViewState of a page. This makes it easier for remote attackers to conduct automated attacks by replaying the ViewState for a known number.

Risk Assessment

Attackers can bypass the CAPTCHA mechanism and automate actions such as mass registrations or spam. This undermines bot protection in web applications.

Recommendation

Update the Lanap BotDetect component to version 1.5.4.0 or later. Consider additional server-side validation of CAPTCHA responses.

Related vulnerabilities

Original NVD description (English source)

The Lanap BotDetect APS.NET CAPTCHA component before 1.5.4.0 stores the UUID and hash for a CAPTCHA in the ViewState of a page, which makes it easier for remote attackers to conduct automated attacks by "replaying the ViewState for a known number."

Vulnerability data from NVD (NIST) · CISA KEV · EPSS