CVE-2008-3842

Description

Request Validation (aka the ValidateRequest filters) in ASP.NET in Microsoft .NET Framework without the MS07-040 update does not properly detect dangerous client input, which allows remote attackers to conduct cross-site scripting (XSS) attacks, as demonstrated by a query string containing a "</" (less-than slash) sequence.

Category

4.3
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 19.86% Top 5%
Third-Party Advisory securityreason.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.procheckup.com/PDFs/bypassing-dot-NET-ValidateRequest.pdf broken link
http://securityreason.com/securityalert/4193 third party advisory
http://www.securityfocus.com/archive/1/495667/100/0/threaded mailing list
https://exchange.xforce.ibmcloud.com/vulnerabilities/44741 vdb entry

Frequently Asked Questions

What is the severity of CVE-2008-3842?
CVE-2008-3842 has been scored as a medium severity vulnerability.
How to fix CVE-2008-3842?
To fix CVE-2008-3842, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2008-3842 being actively exploited in the wild?
It is possible that CVE-2008-3842 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~20% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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