Описание
DNS based denial of service in Apache Wicket
A DNS proxy and possible amplification attack vulnerability in WebClientInfo of Apache Wicket allows an attacker to trigger arbitrary DNS lookups from the server when the X-Forwarded-For header is not properly sanitized. This DNS lookup can be engineered to overload an internal DNS server or to slow down request processing of the Apache Wicket application causing a possible denial of service on either the internal infrastructure or the web application itself. This issue affects Apache Wicket Apache Wicket 9.x version 9.2.0 and prior versions; Apache Wicket 8.x version 8.11.0 and prior versions; Apache Wicket 7.x version 7.17.0 and prior versions and Apache Wicket 6.x version 6.2.0 and later versions.
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2021-23937
- https://github.com/apache/wicket/commit/84f62a5cff462eaa3bfaf171b0638c7e7feea30d
- https://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e@%3Cannounce.wicket.apache.org%3E
- https://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e@%3Cusers.wicket.apache.org%3E
- https://lists.apache.org/thread.html/r8ccbd91b56ebf045d151bd4282bfeea7842a0698a0b76118fca8fe78@%3Cdev.wicket.apache.org%3E
- https://lists.apache.org/thread.html/rc2ef22f90793e158cef65a7e370cdbca023c499d1403d65feeca870d%40%3Cusers.wicket.apache.org%3E
- https://lists.apache.org/thread.html/rc2ef22f90793e158cef65a7e370cdbca023c499d1403d65feeca870d@%3Cusers.wicket.apache.org%3E
- https://lists.apache.org/thread.html/rce158bb896c9ef812393a11646fdef7b9023833e54854c4302ff7b70@%3Cdev.wicket.apache.org%3E
- https://lists.apache.org/thread.html/rce23bba1e11368f9f4cccce0e9b02b88dcdac4e4b2304e66bd098cf5@%3Cannounce.wicket.apache.org%3E
- http://www.openwall.com/lists/oss-security/2021/05/25/2
Пакеты
org.apache.wicket:wicket-core
>= 9.0.0, < 9.3.0
9.3.0
org.apache.wicket:wicket-core
>= 8.0.0, < 8.12.0
8.12.0
org.apache.wicket:wicket-core
< 7.18.0
7.18.0
Связанные уязвимости
A DNS proxy and possible amplification attack vulnerability in WebClientInfo of Apache Wicket allows an attacker to trigger arbitrary DNS lookups from the server when the X-Forwarded-For header is not properly sanitized. This DNS lookup can be engineered to overload an internal DNS server or to slow down request processing of the Apache Wicket application causing a possible denial of service on either the internal infrastructure or the web application itself. This issue affects Apache Wicket Apache Wicket 9.x version 9.2.0 and prior versions; Apache Wicket 8.x version 8.11.0 and prior versions; Apache Wicket 7.x version 7.17.0 and prior versions and Apache Wicket 6.x version 6.2.0 and later versions.