[midPoint] Password reset confirmation link contains invalid characters

[Oleksandr Nekriach]

Hello,

I have found that password reset confirmation link contains invalid
characters (for exp. |}{<> )  and could be exploited according to
CVE-2016-6816.
Such link does not work on tomcat server if the server has not a properly
configured option tomcat.util.http.parser.HttpParser.requestTargetAllow=

Is there some workaround to bypass this issue?

Example of invalid link
http://192.168.2.184:8080/midpoint/confirm/reset?user=
Oleksandr.Nekriach&token=FpX3{e5#.z%_

Logs from catalina.out
26-Sep-2017 16:41:00.370 INFO [http-nio-8080-exec-4]
org.apache.coyote.http11.Http11Processor.service Error parsing HTTP request
header
 Note: further occurrences of HTTP header parsing errors will be logged at
DEBUG level.
 java.lang.IllegalArgumentException: Invalid character found in the request
target. The valid characters are defined in RFC 7230 and RFC 3986
        at
org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:472)
        at
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:683)
        at
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
        at
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
        at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)
        at
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
        at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
        at java.lang.Thread.run(Thread.java:748)


Best regards,

Oleksandr Nekriach | Identity and access management engineer

Dynatech, Mednieku str. 4a, Riga, LV-1010, Latvia

+37125314685 <+371%2025%20314%20685>
,
o.nekriach at dynatech.lv
|
www.dynatech.lv




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