Skip to content
CVE PROGRAM SOURCE RECORDUnscored

CVE-2021-23937

DNS proxy and possible amplification attack

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
apache

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Apache Software Foundation Apache Wicket

  • Apache Wicket 9.x to ≤ 9.2.0affected
  • Apache Wicket 8.x to ≤ 8.11.0affected
  • Apache Wicket 7.x to ≤ 7.17.0affected
  • 6.2.0 to < Apache Wicket 6.x*affected

References