CVE-2021-23937
Published May 25, 2021
Last updated a year ago
Overview
- 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.
- Source
- security@apache.org
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 5
- Impact score
- 2.9
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
- nvd@nist.gov
- CWE-200
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3D5643CD-3063-4900-9EB7-86470C8C1384",
"versionEndIncluding": "6.2.0",
"versionStartIncluding": "6.0.0"
},
{
"criteria": "cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7793CFFA-F876-4DD4-8E2F-C34FBB79FC47",
"versionEndIncluding": "7.17.0",
"versionStartIncluding": "7.0.0"
},
{
"criteria": "cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "02FE0D40-F64F-4EDA-B650-9AB6A13F5190",
"versionEndIncluding": "8.11.0",
"versionStartIncluding": "8.0.0"
},
{
"criteria": "cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A4009313-BE49-4B49-A890-59FDE9D9E0C1",
"versionEndIncluding": "9.2.0",
"versionStartIncluding": "9.0.0"
}
],
"operator": "OR"
}
]
}
]