National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2012-4435 Detail

Current Description

fwknop before 2.0.3 does not properly validate IP addresses, which allows remote authenticated users to cause a denial of service (server crash) via a long IP address.

Source:  MITRE
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 4.0 MEDIUM
Vector: (AV:N/AC:L/Au:S/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): Single
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html Vendor Advisory
http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git;a=commitdiff;h=263fa01f2af1d336961df320f1c7a9ea84ddac9a Exploit Patch
http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git;a=commitdiff;h=f4c16bc47fc24a96b63105556b62d61c1ba7d799 Exploit Patch
http://www.openwall.com/lists/oss-security/2012/09/19/2
http://www.openwall.com/lists/oss-security/2012/09/20/2
http://www.openwall.com/lists/oss-security/2012/09/20/4
https://exchange.xforce.ibmcloud.com/vulnerabilities/79568

Technical Details

Vulnerability Type (View All)

  • Improper Input Validation (CWE-20)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:cipherdyne:fwknop:2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cipherdyne:fwknop:2.0.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:cipherdyne:fwknop:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
2.0.2


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2012-4435
NVD Published Date:
10/22/2012
NVD Last Modified:
08/28/2017