QID 317054

Date Published: 2021-09-24

QID 317054: Cisco Internetwork Operating System (IOS) XE Software for Cisco cBR-8 Converged Broadband Routers Simple Network Management Protocol Denial of Service (DoS) Vulnerability (cisco-sa-cbr8snmp-zGjkZ9Fc)

A vulnerability in the Simple Network Management Protocol (SNMP) punt handling function of Cisco cBR-8 Converged Broadband Routers could allow an authenticated, remote attacker to overload a device punt path, resulting in a denial of service (DoS) condition.

Affected Products:
This vulnerability affects Cisco cBR-8 Converged Broadband Routers if they are running a vulnerable release of Cisco IOS XE Software and have the SNMP server feature enabled.

QID Detection Logic (Authenticated):
The check matches Cisco IOS XE version retrieved via Unix Auth using "show version" command.
QID Detection Logic (Unauthenticated):
The check matches Cisco IOS XE version retrieved via SNMP or TCP/IP Fingerprint or NTP or Telnet.

A successful exploit could allow the attacker to overload the device punt path, resulting in a DoS condition.

CVSS V3 rated as High - 7.7 severity.

CVSS V2 rated as Medium - 4 severity.

Solution

Customers are advised to refer to cisco-sa-cbr8snmp-zGjkZ9Fc for more information.

Vendor References

cisco-sa-cbr8snmp-zGjkZ9Fc - tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cbr8snmp-zGjkZ9Fc

CVEs related to QID 317054

CVE-2021-1623 |

Software Advisories

Advisory ID	Software	Component	Link
cisco-sa-cbr8snmp-zGjkZ9Fc			tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cbr8snmp-zGjkZ9Fc

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