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/?@vulndetector.com	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