CVE-2018-0161

Cisco IOS Software: Resource Management Errors

As of , CVE-2018-0161 in Cisco IOS Software is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch soon.

Exploited
Yes: CISA listed it on 3 March 2022
US federal deadline
17 March 202214 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Not known to CISA
EPSS score
0.04Higher than 90% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
EPSS when listed
0.01 on 3 March 2022EPSS on the day CISA listed it.
Public exploit
None foundNeither Metasploit nor Exploit-DB lists one.
Fix
No vendor link in CISA's entry

What CISA says to do

Apply updates per vendor instructions.

CISA's required action

What the flaw is

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.

CISA's 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.

The CVE record's description, from cisco

CVE published
28 March 2018
Assigned by
cisco
CVSS
6.3 Medium (CVSS 3.1, from CISA-ADP)
CWE-399
Resource Management Errors
CISA SSVC, exploitation
active
CISA SSVC, automatable
no
CISA SSVC, technical impact
partial

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. The US federal deadline to fix it.

IOS Software: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2017-6744SNMP Remote Code ExecutionCisco IOS softwarePatch soon0.07
CVE-2017-12231Network Address Translation Denial-of-ServiceCisco IOS softwarePatch soon0.07
CVE-2017-12233Common Industrial Protocol Request Denial-of-ServiceCisco IOS softwarePatch soon0.07
CVE-2017-12234Common Industrial Protocol Request Denial-of-ServiceCisco IOS softwarePatch soon0.07
CVE-2017-12235for Cisco Industrial Ethernet Switches PROFINET Denial-of-ServiceCisco IOS softwarePatch soon0.07
CVE-2018-0154Integrated Services Module for VPN Denial-of-ServiceCisco IOS SoftwarePatch soon0.07
CVE-2018-0179Denial-of-ServiceCisco IOS SoftwarePatch soon0.05
CVE-2018-0180Denial-of-ServiceCisco IOS SoftwarePatch soon0.05
CVE-2017-12232for Cisco Integrated Services Routers Denial-of-ServiceCisco IOS softwarePatch soon0.02

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