CVE-2018-12542: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

October 17, 2018 (updated September 13, 2021)

In version from 3.0.0 to 3.5.3 of Eclipse Vert.x, the StaticHandler uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize ‘' (forward slashes) sequences that can resolve to a location that is outside of that directory when running on Windows Operating Systems.

References

bugs.eclipse.org/bugs/show_bug.cgi?id=539171
github.com/advisories/GHSA-h39x-m55c-v55h
github.com/vert-x3/vertx-web/issues/1025
lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26@%3Ccommits.pulsar.apache.org%3E
nvd.nist.gov/vuln/detail/CVE-2018-12542

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