CVE-2017-12240

KEV
Published: Set 29, 2017 Last Modified: Gen 12, 2026
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
HIGH 10,0
Source: [email protected]
Access Vector: network
Access Complexity: low
Authentication: none
Confidentiality: complete
Integrity: complete
Availability: complete

Description

AI Translation Available

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.

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
0,0792
Percentile
0,9th
Updated

EPSS Score Trend (Last 91 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
119

Improper Restriction of Operations within the Bounds of a Memory Buffer

Stable
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability
Potential Impacts:
Execute Unauthorized Code Or Commands Modify Memory Read Memory Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory)
Applicable Platforms
Languages: Assembly, C, C++, Memory-Unsafe
Likelihood of Exploit: High
View CWE Details
Operating System

Ios by Cisco

Product Information
Vendor Cisco
Product Ios
Version Range Affected
From 12.2 (inclusive)
To 15.6 (inclusive)
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
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-2017…
https://quickview.cloudapps.cisco.com/quickview/bug/CSCsm45…
https://quickview.cloudapps.cisco.com/quickview/bug/CSCsm45390
https://quickview.cloudapps.cisco.com/quickview/bug/CSCuw77…
https://quickview.cloudapps.cisco.com/quickview/bug/CSCuw77959
https://tools.cisco.com/security/center/content/CiscoSecuri…
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-…
http://www.securityfocus.com/bid/101034
http://www.securityfocus.com/bid/101034
http://www.securitytracker.com/id/1039445
http://www.securitytracker.com/id/1039445
https://quickview.cloudapps.cisco.com/quickview/bug/CSCsm45…
https://quickview.cloudapps.cisco.com/quickview/bug/CSCsm45390
https://quickview.cloudapps.cisco.com/quickview/bug/CSCuw77…
https://quickview.cloudapps.cisco.com/quickview/bug/CSCuw77959
https://tools.cisco.com/security/center/content/CiscoSecuri…
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-…
http://www.securityfocus.com/bid/101034
http://www.securityfocus.com/bid/101034
http://www.securitytracker.com/id/1039445
http://www.securitytracker.com/id/1039445