CVE-2018-0172
Cisco IOS and IOS XE Software Improper Input Valid - [Actively Exploited]
Description
A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software performs incomplete input validation of option 82 information that it receives in DHCP Version 4 (DHCPv4) packets from DHCP relay agents. An attacker could exploit this vulnerability by sending a crafted DHCPv4 packet to an affected device. A successful exploit could allow the attacker to cause a heap overflow condition on the affected device, which will cause the device to reload and result in a DoS condition. Cisco Bug IDs: CSCvg62730.
INFO
Published Date :
March 28, 2018, 10:29 p.m.
Last Modified :
Sept. 4, 2020, 6:25 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.0
Exploitability Score :
3.9
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow for denial-of-service (DoS).
Apply updates per vendor instructions.
Public PoC/Exploit Available at Github
CVE-2018-0172 has a 1 public PoC/Exploit
available at Github.
Go to the Public Exploits
tab to see the list.
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-2018-0172
.
URL | Resource |
---|---|
http://www.securityfocus.com/bid/103552 | Third Party Advisory VDB Entry |
http://www.securitytracker.com/id/1040591 | Third Party Advisory VDB Entry |
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04 | Third Party Advisory US Government Resource |
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05 | Third Party Advisory US Government Resource |
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dhcpr1 | Vendor Advisory |
https://www.tenable.com/security/research/tra-2018-06 | Third Party 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).
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
cisa-kev vulnerability 0day cisa exploits
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-0172
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-0172
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 -
Modified Analysis by [email protected]
Sep. 04, 2020
Action Type Old Value New Value Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H Removed CWE NIST CWE-119 Added CWE NIST CWE-787 -
CVE Modified by [email protected]
Oct. 09, 2019
Action Type Old Value New Value Added CWE Cisco Systems, Inc. CWE-20 -
CWE Remap by [email protected]
Oct. 03, 2019
Action Type Old Value New Value Changed CWE CWE-20 CWE-20 CWE-399 CWE-119 -
Initial Analysis by [email protected]
Apr. 23, 2018
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H Changed Reference Type https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04 No Types Assigned https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04 Third Party Advisory, US Government Resource Changed Reference Type https://www.tenable.com/security/research/tra-2018-06 No Types Assigned https://www.tenable.com/security/research/tra-2018-06 Third Party Advisory Changed Reference Type http://www.securityfocus.com/bid/103552 No Types Assigned http://www.securityfocus.com/bid/103552 Third Party Advisory, VDB Entry Changed Reference Type http://www.securitytracker.com/id/1040591 No Types Assigned http://www.securitytracker.com/id/1040591 Third Party Advisory, VDB Entry Changed Reference Type https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05 No Types Assigned https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05 Third Party Advisory, US Government Resource Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dhcpr1 No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dhcpr1 Vendor Advisory Added CWE CWE-20 Added CPE Configuration OR *cpe:2.3:o:cisco:ios:-:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:ios:-:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:-:*:*:*:*:*:*:* OR cpe:2.3:h:rockwellautomation:allen-bradley_armorstratix_5700:-:*:*:*:*:*:*:* cpe:2.3:h:rockwellautomation:allen-bradley_stratix_5400:-:*:*:*:*:*:*:* cpe:2.3:h:rockwellautomation:allen-bradley_stratix_5410:-:*:*:*:*:*:*:* cpe:2.3:h:rockwellautomation:allen-bradley_stratix_5700:-:*:*:*:*:*:*:* cpe:2.3:h:rockwellautomation:allen-bradley_stratix_8000:-:*:*:*:*:*:*:* cpe:2.3:h:rockwellautomation:allen-bradley_stratix_8300:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 20, 2018
Action Type Old Value New Value Added Reference https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05 [No Types Assigned] Added Reference https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04 [No Types Assigned] -
CVE Modified by [email protected]
Mar. 31, 2018
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/103552 [No Types Assigned] -
CVE Modified by [email protected]
Mar. 30, 2018
Action Type Old Value New Value Added Reference https://www.tenable.com/security/research/tra-2018-06 [No Types Assigned] Added Reference http://www.securitytracker.com/id/1040591 [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-2018-0172
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-2018-0172
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.55 }} 0.45%
score
0.87422
percentile