CVE-2018-0173

KEV
Published: Mar 28, 2018 Last Modified: Gen 14, 2026 EU-VD ID: EUVD-2018-0996 Aliases: GSD-2018-0173
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,6
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: changed
Confidentiality: none
Integrity: none
Availability: high
HIGH 7,8
Source: [email protected]
Access Vector: network
Access Complexity: low
Authentication: none
Confidentiality: none
Integrity: none
Availability: complete

Description

AI Translation Available

A vulnerability in the Cisco IOS Software and Cisco IOS XE Software function that restores encapsulated option 82 information in DHCP Version 4 (DHCPv4) packets could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a Relay Reply denial of service (DoS) condition. The vulnerability exists because the affected software performs incomplete input validation of encapsulated option 82 information that it receives in DHCPOFFER messages from DHCPv4 servers. An attacker could exploit this vulnerability by sending a crafted DHCPv4 packet to an affected device, which the device would then forward to a DHCPv4 server. When the affected software processes the option 82 information that is encapsulated in the response from the server, an error could occur. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvg62754.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0407
Percentile
0,9th
Updated

EPSS Score Trend (Last 90 Days)

20

Improper Input Validation

Stable
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Confidentiality Integrity
Potential Impacts:
Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Read Memory Read Files Or Directories Modify Memory Execute Unauthorized Code Or Commands
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: High
View CWE Details
Operating System

Ios Xe by Cisco

Product Information
Vendor Cisco
Product Ios Xe
Version denali-16.3.4
cpe:2.3:o:cisco:ios_xe:denali-16.3.4:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ios by Cisco

Product Information
Vendor Cisco
Product Ios
Version Range Affected
To 15.2\(6\)e0a (inclusive)
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ios by Cisco

Product Information
Vendor Cisco
Product Ios
Version denali-16.3.4
cpe:2.3:o:cisco:ios:denali-16.3.4:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ios by Cisco

Product Information
Vendor Cisco
Product Ios
Version Range Affected
To 15.2\(4a\)ea5 (inclusive)
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ios Xe by Cisco

Product Information
Vendor Cisco
Product Ios Xe
Version Range Affected
To 15.2\(4a\)ea5 (inclusive)
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ios Xe by Cisco

Product Information
Vendor Cisco
Product Ios Xe
Version Range Affected
To 15.2\(6\)e0a (inclusive)
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.cisa.gov/known-exploited-vulnerabilities-catalo…
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018…
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
https://tools.cisco.com/security/center/content/CiscoSecuri…
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-…
https://www.tenable.com/security/research/tra-2018-06
https://www.tenable.com/security/research/tra-2018-06
http://www.securityfocus.com/bid/103545
http://www.securityfocus.com/bid/103545
http://www.securitytracker.com/id/1040591
http://www.securitytracker.com/id/1040591
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
https://tools.cisco.com/security/center/content/CiscoSecuri…
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-…
https://www.tenable.com/security/research/tra-2018-06
https://www.tenable.com/security/research/tra-2018-06
http://www.securityfocus.com/bid/103545
http://www.securityfocus.com/bid/103545
http://www.securitytracker.com/id/1040591
http://www.securitytracker.com/id/1040591