CVE-2021-23937

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-23937
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.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References
Link Resource
https://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e%40%3Cannounce.wicket.apache.org%3E
https://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e%40%3Cusers.wicket.apache.org%3E
https://lists.apache.org/thread.html/r8ccbd91b56ebf045d151bd4282bfeea7842a0698a0b76118fca8fe78%40%3Cdev.wicket.apache.org%3E
https://lists.apache.org/thread.html/rc2ef22f90793e158cef65a7e370cdbca023c499d1403d65feeca870d%40%3Cusers.wicket.apache.org%3E Mailing List Release Notes Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:*
cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:*
cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:*
cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:*
History

07 Nov 2023, 03:31

Type Values Removed Values Added
References
  • {'url': 'https://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e@%3Cannounce.wicket.apache.org%3E', 'name': '[wicket-announce] 20210526 Re: CVE-2021-23937: Apache Wicket: DNS proxy and possible amplification attack', 'tags': ['Mailing List', 'Vendor Advisory'], 'refsource': 'MLIST'}
  • {'url': 'https://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e@%3Cusers.wicket.apache.org%3E', 'name': '[wicket-users] 20210526 Re: CVE-2021-23937: Apache Wicket: DNS proxy and possible amplification attack', 'tags': ['Mailing List', 'Vendor Advisory'], 'refsource': 'MLIST'}
  • {'url': 'https://lists.apache.org/thread.html/r8ccbd91b56ebf045d151bd4282bfeea7842a0698a0b76118fca8fe78@%3Cdev.wicket.apache.org%3E', 'name': '[wicket-dev] 20210526 Re: CVE-2021-23937: Apache Wicket: DNS proxy and possible amplification attack', 'tags': ['Mailing List', 'Vendor Advisory'], 'refsource': 'MLIST'}
  • () https://lists.apache.org/thread.html/r8ccbd91b56ebf045d151bd4282bfeea7842a0698a0b76118fca8fe78%40%3Cdev.wicket.apache.org%3E -
  • () https://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e%40%3Cannounce.wicket.apache.org%3E -
  • () https://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e%40%3Cusers.wicket.apache.org%3E -

08 Aug 2023, 14:22

Type Values Removed Values Added
CWE CWE-20 CWE-200

02 Jun 2021, 17:56

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : 5.0
v3 : 7.5
CWE CWE-20
CPE cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:*
References (MLIST) https://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e@%3Cusers.wicket.apache.org%3E - (MLIST) https://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e@%3Cusers.wicket.apache.org%3E - Mailing List, Vendor Advisory
References (MLIST) https://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e@%3Cannounce.wicket.apache.org%3E - (MLIST) https://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e@%3Cannounce.wicket.apache.org%3E - Mailing List, Vendor Advisory
References (MISC) https://lists.apache.org/thread.html/rc2ef22f90793e158cef65a7e370cdbca023c499d1403d65feeca870d%40%3Cusers.wicket.apache.org%3E - (MISC) https://lists.apache.org/thread.html/rc2ef22f90793e158cef65a7e370cdbca023c499d1403d65feeca870d%40%3Cusers.wicket.apache.org%3E - Mailing List, Release Notes, Vendor Advisory
References (MLIST) https://lists.apache.org/thread.html/r8ccbd91b56ebf045d151bd4282bfeea7842a0698a0b76118fca8fe78@%3Cdev.wicket.apache.org%3E - (MLIST) https://lists.apache.org/thread.html/r8ccbd91b56ebf045d151bd4282bfeea7842a0698a0b76118fca8fe78@%3Cdev.wicket.apache.org%3E - Mailing List, Vendor Advisory

26 May 2021, 17:15

Type Values Removed Values Added
References
  • (MLIST) https://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e@%3Cusers.wicket.apache.org%3E -
  • (MLIST) https://lists.apache.org/thread.html/r8ccbd91b56ebf045d151bd4282bfeea7842a0698a0b76118fca8fe78@%3Cdev.wicket.apache.org%3E -
  • (MLIST) https://lists.apache.org/thread.html/r127c0c1f3cb71e5bc619ad1e4b898b97c49758d1f20a54042966473e@%3Cannounce.wicket.apache.org%3E -

26 May 2021, 13:15

Type Values Removed Values Added
References
  • {'url': 'http://www.openwall.com/lists/oss-security/2021/05/25/2', 'name': '[oss-security] 20210525 CVE-2021-23937: Apache Wicket: DNS proxy and possible amplification attack', 'tags': [], 'refsource': 'MLIST'}
  • {'url': 'https://lists.apache.org/thread.html/rce23bba1e11368f9f4cccce0e9b02b88dcdac4e4b2304e66bd098cf5@%3Cannounce.wicket.apache.org%3E', 'name': '[wicket-announce] 20210525 CVE-2021-23937: Apache Wicket: DNS proxy and possible amplification attack', 'tags': [], 'refsource': 'MLIST'}
  • {'url': 'https://lists.apache.org/thread.html/rc2ef22f90793e158cef65a7e370cdbca023c499d1403d65feeca870d@%3Cusers.wicket.apache.org%3E', 'name': '[wicket-users] 20210525 CVE-2021-23937: Apache Wicket: DNS proxy and possible amplification attack', 'tags': [], 'refsource': 'MLIST'}
  • {'url': 'https://lists.apache.org/thread.html/rce158bb896c9ef812393a11646fdef7b9023833e54854c4302ff7b70@%3Cdev.wicket.apache.org%3E', 'name': '[wicket-dev] 20210525 CVE-2021-23937: Apache Wicket: DNS proxy and possible amplification attack', 'tags': [], 'refsource': 'MLIST'}

25 May 2021, 17:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-05-25 17:15

Updated : 2023-12-10 13:55

NVD link : CVE-2021-23937

Mitre link : CVE-2021-23937

CVE.ORG link : CVE-2021-23937

JSON object : View

Products Affected

apache

  • wicket
CWE
CWE-200

Exposure of Sensitive Information to an Unauthorized Actor