CVE-2018-0172

HIGHCISA KEV

8.6

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.

CVE Details

CVSS v3.1 Score8.6

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/28/2018

Last Modified1/14/2026

Sourcekev

Honeypot Sightings0

CISA KEV

VendorCisco

ProductIOS and IOS XE Software

Vulnerability NameCisco IOS and IOS XE Software Improper Input Validation Vulnerability

KEV Date Added2022-03-03

Remediation Due Date2022-03-17

Ransomware UseUnknown

Affected Products

cisco:ioscisco:ios_xerockwellautomation:allen-bradley_armorstratix_5700rockwellautomation:allen-bradley_stratix_5400rockwellautomation:allen-bradley_stratix_5410rockwellautomation:allen-bradley_stratix_5700rockwellautomation:allen-bradley_stratix_8000rockwellautomation:allen-bradley_stratix_8300

Weaknesses (CWE)

CWE-20CWE-787

References

http://www.securityfocus.com/bid/103552(psirt@cisco.com)

http://www.securitytracker.com/id/1040591(psirt@cisco.com)

https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04(psirt@cisco.com)

https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05(psirt@cisco.com)

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dhcpr1(psirt@cisco.com)

https://www.tenable.com/security/research/tra-2018-06(psirt@cisco.com)

http://www.securityfocus.com/bid/103552(af854a3a-2127-422b-91ae-364da2661108)

http://www.securitytracker.com/id/1040591(af854a3a-2127-422b-91ae-364da2661108)

https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04(af854a3a-2127-422b-91ae-364da2661108)

https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05(af854a3a-2127-422b-91ae-364da2661108)

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dhcpr1(af854a3a-2127-422b-91ae-364da2661108)

https://www.tenable.com/security/research/tra-2018-06(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0172(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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