Vulnerability CVE-2006-2918
Published: 2006-06-23   Modified: 2012-02-12

Description:
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."

See advisories in our WLB2 database:
Topic
Author
Date
Low
Lanap CAPTCHA bypass exposure
Michael White
28.06.2006

Type:

CWE-264

 (Permissions, Privileges, and Access Controls)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Lanap botdetect -> Captcha asp.net 

 References:
http://securityreason.com/securityalert/1139
http://securitytracker.com/id?1016371
http://www.securityfocus.com/archive/1/438159/100/0/threaded
http://www.securityfocus.com/bid/18315
http://www.symantec.com/enterprise/research/SYMSA-2006-005.txt
http://www.vupen.com/english/advisories/2006/2518
https://exchange.xforce.ibmcloud.com/vulnerabilities/27409
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