org.eclipse.jetty:jetty-http has different parsing of invalid URIs

The Jetty URI parser has some key differences compared to other common parsers when evaluating invalid or unusual URIs. Specifically:

Invalid Scheme

| URI | Jetty | uri-js (nodejs) | node-url(nodejs) | |---|---|---| --- | | https>://vulndetector.com/path | scheme=http>| scheme=https | invalid URI |

Improper IPv4 mapped IPv6

| URI | Jetty | System.Uri(CSharp) | curl(C) | |---|---|---| --- | | http://[0:0:0:0:0:ffff:127.0.0.1] | invalid | host=[::ffff:127.0.0.1] | host=[::ffff:127.0.0.1] | | http://[::ffff:255.255.0.0] | invalid | host=[::ffff:255.255.0.0] | host=[::ffff:255.255.0.0] |

Incorrect IPv6 delimeter priority

| URI | Jetty | urllib3(python) | furl(python) | Spring | chromium | |---|---|---| --- |---|---| | http://[normal.com@]vulndetector.com/ | host=[normal.com@] | invalid | invalid | | | | http://normal.com[user@vulndetector].com/ | host=[noirmal.com@vulndetector | | | host=normal.com| invalid | |http://normal.com[@]vulndetector.com/ | host=normal.com[@] | | | host=normal.com | invalid |

Incorrect delimeter priority

| URI | Jetty | urllib3(python) | jersey | |---|---|---| --- | | http://normal.com/#@vulndetector.com | host=vulndetector.com | host=normal.com | host=normal.com | | http://normal.com/[email protected] | host=vulndetector.com | host=normal.com | host=normal.com |

Impact

Differential parsing of URIs in systems using multiple components may result in security by-pass. For example a component that enforces a black list may interpret the URIs differently from one that generates a response. At the very least, differential parsing may divulge implementation details.

Patches

Patched in Supported Open Source versions.

• 12.1.5 - Supported and available on Maven Central
• 12.0.31 - Supported and available on Maven Central
• 11.0.x - EOL Release, patches available on tuxcare and herodevs
• 10.0.x - EOL Release, patches available on tuxcare and herodevs
• 9.4.x - EOL Release, patches available on tuxcare and herodevs

Workarounds

None

Resources

• Java Eclipse Jetty Report_ Incorrect Parsing Priority of the IPv6 Hostname Delimeter.pdf
• Java Eclipse Jetty Report_ The Parsing Priority of the Delimiter.pdf
• Java Eclipse Jetty Report_ Parsing Difference Due to Deformed Scheme.pdf
• Java Eclipse Jetty Report_ Improper IPv4-mapped IPv6 Parsing.pdf