CVE-2017-11173

NameCVE-2017-11173
DescriptionMissing anchor in generated regex for rack-cors before 0.4.1 allows a malicious third-party site to perform CORS requests. If the configuration were intended to allow only the trusted example.com domain name and not the malicious example.net domain name, then example.com.example.net (as well as example.com-example.net) would be inadvertently allowed.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-3931-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ruby-rack-cors (PTS)jessie0.2.9-1fixed
stretch0.4.0-1vulnerable
stretch (security)0.4.0-1+deb9u1fixed
buster, sid0.4.1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ruby-rack-corssource(unstable)0.4.1-1medium
ruby-rack-corssourcejessie(not affected)
ruby-rack-corssourcestretch0.4.0-1+deb9u1mediumDSA-3931-1

Notes

[jessie] - ruby-rack-cors <not-affected> (Vulnerable code not present)

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