Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2018-0172 First vendor Publication 2018-03-28
Vendor Cve Last vendor Modification 2020-09-04

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Overall CVSS Score 8.6
Base Score 8.6 Environmental Score 8.6
impact SubScore 4 Temporal Score 8.6
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Changed Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0172

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 1
Os 1

Snort® IPS/IDS

Date Description
2020-12-05 Cisco IOS DHCP relay agent information memory corruption attempt
RuleID : 46104 - Revision : 1 - Type : SERVER-OTHER

Nessus® Vulnerability Scanner

Date Description
2018-04-17 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20180328-dhcpr3-ios.nasl - Type : ACT_GATHER_INFO
2018-04-17 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20180328-dhcpr3-iosxe.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

Source Url
BID http://www.securityfocus.com/bid/103552
CONFIRM https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-s...
MISC https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
https://www.tenable.com/security/research/tra-2018-06
SECTRACK http://www.securitytracker.com/id/1040591

Alert History

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Date Informations
2020-12-05 21:23:46
  • Multiple Updates
2020-09-05 00:22:45
  • Multiple Updates
2020-05-23 01:04:57
  • Multiple Updates
2019-10-10 05:20:10
  • Multiple Updates
2019-10-03 09:20:40
  • Multiple Updates
2018-04-24 00:19:18
  • Multiple Updates
2018-04-20 09:19:17
  • Multiple Updates
2018-03-31 09:18:37
  • Multiple Updates
2018-03-30 09:18:56
  • Multiple Updates
2018-03-29 05:18:19
  • First insertion