CVE-2018-0172

Warning

EPSS 6.4%
Published 28.03.2018 22:29:01
Last modified 27.01.2025 20:01:56
Source psirt@cisco.com
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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.

Affected products Warnungen 1 Metrics 3 CWE 2 References 9

Data is provided by the National Vulnerability Database (NVD)

Cisco ≫ Ios Version-

Cisco ≫ Ios Xe Version-

Cisco ≫ Ios Version-

   Rockwellautomation ≫ Allen-bradley Armorstratix 5700 Version-
   Rockwellautomation ≫ Allen-bradley Stratix 5400 Version-
   Rockwellautomation ≫ Allen-bradley Stratix 5410 Version-
   Rockwellautomation ≫ Allen-bradley Stratix 5700 Version-
   Rockwellautomation ≫ Allen-bradley Stratix 8000 Version-
   Rockwellautomation ≫ Allen-bradley Stratix 8300 Version-

Cisco ≫ Ios Xe Version-

03.03.2022: CISA Known Exploited Vulnerabilities (KEV) Catalog

Cisco IOS and IOS XE Software Improper Input Validation Vulnerability

Vulnerability

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).

Description

Apply updates per vendor instructions.

Required actions

EPSS Metriken
Type	Source	Score	Percentile
EPSS	FIRST.org	6.4%	0.906

CVSS Metriken
Source	Base Score	Exploit Score	Impact Score	Vector string
nvd@nist.gov	8.6	3.9	4	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
nvd@nist.gov	7.8	10	6.9	AV:N/AC:L/Au:N/C:N/I:N/A:C

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05

Third Party Advisory

US Government Resource

https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04

Third Party Advisory

US Government Resource

http://www.securityfocus.com/bid/103552

Third Party Advisory

VDB Entry

http://www.securitytracker.com/id/1040591