CVE-2017-12240
The DHCP relay subsystem of Cisco IOS 12.2 through 15.6 and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated,...
Basic Information
- CVE State
- PUBLISHED
- Reserved Date
- August 03, 2017
- Published Date
- September 28, 2017
- Last Updated
- November 15, 2024
- Vendor
- n/a
- Product
- Cisco IOS and IOS XE
- Description
- The DHCP relay subsystem of Cisco IOS 12.2 through 15.6 and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code and gain full control of an affected system. The attacker could also cause an affected system to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to a buffer overflow condition in the DHCP relay subsystem of the affected software. An attacker could exploit this vulnerability by sending a crafted DHCP Version 4 (DHCPv4) packet to an affected system. A successful exploit could allow the attacker to execute arbitrary code and gain full control of the affected system or cause the affected system to reload, resulting in a DoS condition. Cisco Bug IDs: CSCsm45390, CSCuw77959.
CVSS Scores
CVSS v3.1
9.8 - CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC Information
- Exploitation
- active
- Automatable
- Yes
- Technical Impact
- total
Exploit Status
- Exploited in the Wild
- Yes (added 2022-03-03 00:00:00 UTC) Source
References
https://quickview.cloudapps.cisco.com/quickview/bug/CSCuw77959
https://quickview.cloudapps.cisco.com/quickview/bug/CSCsm45390
http://www.securityfocus.com/bid/101034
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-dhcp
http://www.securitytracker.com/id/1039445
Known Exploited Vulnerability Information
| Source | Added Date |
|---|---|
| CISA | 2022-03-03 00:00:00 UTC |