CVE-2018-0421
Cisco Prime Access Registrar TCP SYN Flood Denial of Service
Description
A vulnerability in TCP connection management in Cisco Prime Access Registrar could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition when the application unexpectedly restarts. The vulnerability is due to incorrect handling of incoming TCP SYN packets to specific listening ports. The improper handling of the TCP SYN packets could cause a system file description to be allocated and not freed. An attacker could exploit this vulnerability by sending a crafted stream of TCP SYN packets to the application. A successful exploit could allow the attacker to cause the application to eventually restart if a file description cannot be obtained.
INFO
Published Date :
Oct. 5, 2018, 2:29 p.m.
Last Modified :
Oct. 9, 2019, 11:32 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.0
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2018-0421
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-0421.
| URL | Resource |
|---|---|
| http://www.securityfocus.com/bid/105282 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1041684 | Third Party Advisory VDB Entry |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-cpar-dos | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-0421 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-0421 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Oct. 09, 2019
Action Type Old Value New Value Added CWE Cisco Systems, Inc. CWE-399 -
CWE Remap by [email protected]
Oct. 03, 2019
Action Type Old Value New Value Changed CWE CWE-399 CWE-399 CWE-772 -
Initial Analysis by [email protected]
Jan. 04, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H Changed Reference Type http://www.securitytracker.com/id/1041684 No Types Assigned http://www.securitytracker.com/id/1041684 Third Party Advisory, VDB Entry Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-cpar-dos No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-cpar-dos Vendor Advisory Changed Reference Type http://www.securityfocus.com/bid/105282 No Types Assigned http://www.securityfocus.com/bid/105282 Third Party Advisory, VDB Entry Added CWE CWE-399 Added CPE Configuration OR *cpe:2.3:a:cisco:prime_access_registrar:*:*:*:*:*:*:*:* versions from (including) 7.3 up to (excluding) 7.3.0.4 *cpe:2.3:a:cisco:prime_access_registrar:*:*:*:*:*:*:*:* versions from (including) 8.0 up to (excluding) 8.0.1.1 *cpe:2.3:a:cisco:prime_access_registrar_jumpstart:*:*:*:*:*:*:*:* versions from (including) 7.3 up to (excluding) 7.3.0.4 *cpe:2.3:a:cisco:prime_access_registrar_jumpstart:*:*:*:*:*:*:*:* versions from (including) 8.0 up to (excluding) 8.0.1.1 -
CVE Modified by [email protected]
Oct. 07, 2018
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1041684 [No Types Assigned] Added Reference http://www.securityfocus.com/bid/105282 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-0421 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-0421
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.20 }} -0.01%
score
0.57565
percentile