CVE-2018-0161

Known Exploited

Description

A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software running on certain models of Cisco Catalyst Switches could allow an authenticated, remote attacker to cause a denial of service (DoS) condition, aka a GET MIB Object ID Denial of Service Vulnerability. The vulnerability is due to a condition that could occur when the affected software processes an SNMP read request that contains a request for the ciscoFlashMIB object ID (OID). An attacker could trigger this vulnerability by issuing an SNMP GET request for the ciscoFlashMIB OID on an affected device. A successful exploit could cause the affected device to restart due to a SYS-3-CPUHOG. This vulnerability affects the following Cisco devices if they are running a vulnerable release of Cisco IOS Software and are configured to use SNMP Version 2 (SNMPv2) or SNMP Version 3 (SNMPv3): Cisco Catalyst 2960-L Series Switches, Cisco Catalyst Digital Building Series Switches 8P, Cisco Catalyst Digital Building Series Switches 8U. Cisco Bug IDs: CSCvd89541.

Category

6.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.52% Top 20%
KEV Since 
Vendor Advisory cisco.com
Affected: n/a Cisco IOS
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/103573 vdb entry third party advisory broken link
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-snmp mitigation vendor advisory
http://www.securitytracker.com/id/1040589 vdb entry third party advisory broken link

Frequently Asked Questions

What is the severity of CVE-2018-0161?
CVE-2018-0161 has been scored as a medium severity vulnerability.
How to fix CVE-2018-0161?
To fix CVE-2018-0161, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-0161 being actively exploited in the wild?
It is confirmed that CVE-2018-0161 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-0161?
CVE-2018-0161 affects n/a Cisco IOS.
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