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

    CVEs related to QID 317054

    CVE-2021-1623 |
    Software Advisories
    Advisory ID Software Component Link
    cisco-sa-cbr8snmp-zGjkZ9Fc URL Logo tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cbr8snmp-zGjkZ9Fc
    By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].