~ / search / GHSA-hmhg-95wh-r699

GHSA-hmhg-95wh-r699

DNS based denial of service in Apache Wicket

Source: GitHub Advisory Database (reviewed) High CVE-2021-23937

Packages

EcosystemPackageAffectedFixed in
Maven org.apache.wicket:wicket-core >= 9.0.0, < 9.3.0 9.3.0
Maven org.apache.wicket:wicket-core >= 8.0.0, < 8.12.0 8.12.0
Maven org.apache.wicket:wicket-core < 7.18.0 7.18.0

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.