CVE-2021-23937: DNS proxy and possible amplification attack
Apache Software Foundation · Apache Wicket
Vendor fix available · Affected: Apache Software Foundation Apache Wicket · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 91% of scored CVEs
Not scored yet. The CVE record carries no CVSS score.
DescriptionCVE.org
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 products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Apache Software Foundation · Apache Wicketfrom Apache Wicket 9.x up to and including 9.2.0; from Apache Wicket 8.x up to and including 8.11.0; from Apache Wicket 7.x up to and including 7.17.0; from 6.2.0 before Apache Wicket 6.x*
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Published
- May 2021
CoverageNo articles yet
No CyberSIXT article names CVE-2021-23937 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.