CVE-2017-6738

KEV
Published: Lug 17, 2017 Last Modified: Ott 22, 2025 EU-VD ID: EUVD-2017-15792 Aliases: GSD-2017-6738
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
HIGH 9,0
Source: [email protected]
Access Vector: network
Access Complexity: low
Authentication: single
Confidentiality: complete
Integrity: complete
Availability: complete

Description

AI Translation Available

The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE Software contains multiple vulnerabilities that could allow an authenticated, remote attacker to remotely execute code on an affected system or cause an affected system to reload. An attacker could exploit these vulnerabilities by sending a crafted SNMP packet to an affected system via IPv4 or IPv6. Only traffic directed to an affected system can be used to exploit these vulnerabilities.

The vulnerabilities are due to a buffer overflow condition in the SNMP subsystem of the affected software. The vulnerabilities affect all versions of SNMP - Versions 1, 2c, and 3. To exploit these vulnerabilities via SNMP Version 2c or earlier, the attacker must know the SNMP read-only community string for the affected system. To exploit these vulnerabilities via SNMP Version 3, the attacker must have user credentials for the affected system. A successful exploit could allow the attacker to execute arbitrary code and obtain full control of the affected system or cause the affected system to reload.

Customers are advised to apply the workaround as contained in the Workarounds section below. Fixed software information is available via the Cisco IOS Software Checker. All devices that have enabled SNMP and have not explicitly excluded the affected MIBs or OIDs should be considered vulnerable.

There are workarounds that address these vulnerabilities.

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
0,2884
Percentile
1,0th
Updated

EPSS Score Trend (Last 90 Days)

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 Xe by Cisco

Product Information
Vendor Cisco
Product Ios Xe
Version Range Affected
From 2.2.0 (inclusive)
To 3.17.0 (inclusive)
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Ios by Cisco

Product Information
Vendor Cisco
Product Ios
Version Range Affected
From 12.0 (inclusive)
To 12.4 (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 Range Affected
From 15.0 (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://tools.cisco.com/security/center/content/CiscoSecuri…
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-…
http://www.securityfocus.com/bid/99345
http://www.securityfocus.com/bid/99345
http://www.securitytracker.com/id/1038808
http://www.securitytracker.com/id/1038808
https://sec.cloudapps.cisco.com/security/center/content/Cis…
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/c…