CVE-2021-23937 is a DNS proxy and amplification attack vulnerability in Apache Wicket's WebClientInfo, affecting versions 9.2.0 and prior, 8.11.0 and prior, 7.17.0 and prior, and 6.2.0 and later. An attacker can trigger arbitrary DNS lookups from the server by manipulating the X-Forwarded-For header, potentially leading to a denial of service on internal DNS servers or the Wicket application itself. This vulnerability has a CVSS score of 7.5 (High), indicating a network-based attack with low complexity and high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 6.0.0, <= 6.2.0CPE matchmatch criteria | cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:* | ||
>= 7.0.0, <= 7.17.0CPE matchmatch criteria | cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:* | ||
>= 8.0.0, <= 8.11.0CPE matchmatch criteria | cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:* | ||
>= 9.0.0, <= 9.2.0CPE matchmatch criteria | cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.