CVE-2021-23937
CVSS V2 Medium 5
CVSS V3 High 7.5
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.
Overview
- CVE ID
- CVE-2021-23937
- Assigner
- security@apache.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-05-25T17:15:08
- Last Modified Date
- 2021-06-02T17:56:24
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:* | 1 | OR | 6.0.0 | 6.2.0 |
| cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:* | 1 | OR | 7.0.0 | 7.17.0 |
| cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:* | 1 | OR | 8.0.0 | 8.11.0 |
| cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:* | 1 | OR | 9.0.0 | 9.2.0 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://lists.apache.org/thread.html/rc2ef22f90793e158cef65a7e370cdbca023c499d1403d65feeca870d%40%3Cusers.wicket.apache.org%3E | Mailing List Release Notes Vendor Advisory |
| https://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e@%3Cannounce.wicket.apache.org%3E | Mailing List Vendor Advisory |
| https://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e@%3Cusers.wicket.apache.org%3E | Mailing List Vendor Advisory |
| https://lists.apache.org/thread.html/r8ccbd91b56ebf045d151bd4282bfeea7842a0698a0b76118fca8fe78@%3Cdev.wicket.apache.org%3E | Mailing List Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-23937 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23937 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:13:53 | Added to TrackCVE | |||
| 2022-12-05 02:57:35 | 2021-05-25T17:15Z | 2021-05-25T17:15:08 | CVE Published Date | updated |
| 2022-12-05 02:57:35 | 2021-06-02T17:56:24 | CVE Modified Date | updated | |
| 2022-12-05 02:57:35 | Analyzed | Vulnerability Status | updated |