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.
Published: 2021-05-25
Score: 7.5 High
EPSS: 5.2% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

Vendor Workaround

Sanitize the X-Forwarded-For header by running an Apache Wicket application behind a reverse HTTP proxy. This proxy should put the client IP address in the X-Forwarded-For header and not pass through the contents of the header as received by the client.

Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2022-4175 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.
Github GHSA Github GHSA GHSA-hmhg-95wh-r699 DNS based denial of service in Apache Wicket
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2024-08-03T19:14:09.890Z

Reserved: 2021-01-13T00:00:00.000Z

Link: CVE-2021-23937

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-05-25T17:15:08.187

Modified: 2024-11-21T05:52:05.323

Link: CVE-2021-23937

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses