CVE-2018-0369
Cisco StarOS IPv4 Packet Fragmentation Remote Denial of Service
Description
A vulnerability in the reassembly logic for fragmented IPv4 packets of Cisco StarOS running on virtual platforms could allow an unauthenticated, remote attacker to trigger a reload of the npusim process, resulting in a denial of service (DoS) condition. There are four instances of the npusim process running per Service Function (SF) instance, each handling a subset of all traffic flowing across the device. It is possible to trigger a reload of all four instances of the npusim process around the same time. The vulnerability is due to improper handling of fragmented IPv4 packets containing options. An attacker could exploit this vulnerability by sending a malicious IPv4 packet across an affected device. An exploit could allow the attacker to trigger a restart of the npusim process, which will result in all traffic queued toward this instance of the npusim process to be dropped while the process is restarting. The npusim process typically restarts within less than a second. This vulnerability affects: Cisco Virtualized Packet Core-Single Instance (VPC-SI), Cisco Virtualized Packet Core-Distributed Instance (VPC-DI), Cisco Ultra Packet Core (UPC). Cisco Bug IDs: CSCvh29613.
INFO
Published Date :
July 16, 2018, 5:29 p.m.
Last Modified :
Oct. 9, 2019, 11:31 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.0
Exploitability Score :
3.9
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-2018-0369
.
URL | Resource |
---|---|
http://www.securityfocus.com/bid/104723 | Third Party Advisory VDB Entry |
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180711-staros-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).
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The following list is the news that have been mention
CVE-2018-0369
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-0369
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-20 -
Initial Analysis by [email protected]
Sep. 20, 2018
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.securityfocus.com/bid/104723 No Types Assigned http://www.securityfocus.com/bid/104723 Third Party Advisory, VDB Entry Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180711-staros-dos No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180711-staros-dos Vendor Advisory Added CWE CWE-20 Added CPE Configuration AND OR *cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:* versions from (including) 21.3 up to (excluding) 21.3.15 *cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:* versions from (including) 21.4 up to (excluding) 21.5.7 *cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:* versions from (including) 21.6 up to (excluding) 21.6.4 OR cpe:2.3:h:cisco:asr_5000:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_5500:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_5700:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 18, 2018
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/104723 [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-2018-0369
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-2018-0369
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.11 }} 0.00%
score
0.43732
percentile