Vulnerability Details

SNMP Remote Code Execution Vulnerabilities in Cisco IOS Software

Published: 2017-06-30 07:53:03
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:S/C:C/I:C/A:C

Detection Method:
Checks if a vulnerable version is present on the target host.

Recommendations:
See the referenced vendor advisory for a solution.

Summary:
The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS 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.

Technical Details:
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.

Impact:
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.

Detection Type:
Linux Distribution Package

Solution Type:
Vendor Patch

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2017-6744
https://nvd.nist.gov/vuln/detail/CVE-2017-6743
https://nvd.nist.gov/vuln/detail/CVE-2017-6742
https://nvd.nist.gov/vuln/detail/CVE-2017-6741
https://nvd.nist.gov/vuln/detail/CVE-2017-6740
https://nvd.nist.gov/vuln/detail/CVE-2017-6739
https://nvd.nist.gov/vuln/detail/CVE-2017-6738
https://nvd.nist.gov/vuln/detail/CVE-2017-6737
https://nvd.nist.gov/vuln/detail/CVE-2017-6736

References:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170629-snmp

Severity
High
CVSS Score
9.0
Published
2017-06-30
Modified
2018-10-26
Category
CISCO

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