CVE-2018-0172
A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated,...
Basic Information
- CVE State
- PUBLISHED
- Reserved Date
- November 27, 2017
- Published Date
- March 28, 2018
- Last Updated
- November 13, 2024
- Vendor
- n/a
- Product
- Cisco IOS and IOS XE
- 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.
CVSS Scores
CVSS v3.1
8.6 - HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
SSVC Information
- Exploitation
- active
- Technical Impact
- total
Exploit Status
- Exploited in the Wild
- Yes (added 2022-03-03 00:00:00 UTC) Source
References
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04
https://www.tenable.com/security/research/tra-2018-06
http://www.securitytracker.com/id/1040591
http://www.securityfocus.com/bid/103552
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dhcpr1
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
Known Exploited Vulnerability Information
| Source | Added Date |
|---|---|
| CISA | 2022-03-03 00:00:00 UTC |