CVE-2009-3287: Improper Input Validation

October 24, 2017 (updated September 14, 2021)

lib/thin/connection.rb in Thin web server relies on the X-Forwarded-For header to determine the IP address of the client, which allows remote attackers to spoof the IP address and hide activities via a modified X-Forwarded-For header.

References

github.com/macournoyer/thin/blob/master/CHANGELOG
github.com/macournoyer/thin/commit/7bd027914c5ffd36bb408ef47dc749de3b6e063a
www.openwall.com/lists/oss-security/2009/09/12/1
github.com/advisories/GHSA-j24p-r6wx-r79w
nvd.nist.gov/vuln/detail/CVE-2009-3287

Code Behaviors & Features

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