CVE-2011-3187

NameCVE-2011-3187
DescriptionThe to_s method in actionpack/lib/action_dispatch/middleware/remote_ip.rb in Ruby on Rails 3.0.5 does not validate the X-Forwarded-For header in requests from IP addresses on a Class C network, which might allow remote attackers to inject arbitrary text into log files or bypass intended address parsing via a crafted header.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
rails (PTS)buster2:5.2.2.1+dfsg-1+deb10u3vulnerable (unimportant)
buster (security)2:5.2.2.1+dfsg-1+deb10u5vulnerable (unimportant)
bullseye, bullseye (security)2:6.0.3.7+dfsg-2+deb11u2vulnerable (unimportant)
bookworm2:6.1.7.3+dfsg-1vulnerable (unimportant)
sid, trixie2:6.1.7.3+dfsg-3vulnerable (unimportant)

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
railssource(unstable)(unfixed)unimportant

Notes

X-Forwarded-For header is user supplied (like User-Agent)

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