QID 317364

Date Published: 2023-10-04

QID 317364: Cisco Internetwork Operating System (IOS) XE Software for Catalyst 3650 and Catalyst 3850 Series Switches Denial of Service (DoS) Vulnerability (cisco-sa-cat3k-dos-ZZA4Gb3r)

A vulnerability in Cisco IOS XE Software for Cisco Catalyst 3650 and Catalyst 3850 Series Switches could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition.

Affected Products:
This vulnerability affects Cisco Catalyst 3650 and Catalyst 3850 Series Switches and have the management interface 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 cause the device to reload, resulting in a DoS condition.

  • CVSS V3 rated as Critical - 8.6 severity.
  • CVSS V2 rated as High - 6.8 severity.
    • Solution

    Customers are advised to refer to cisco-sa-cat3k-dos-ZZA4Gb3r for more information.

    Vendor References

    CVEs related to QID 317364

    CVE-2023-20033 |
    Software Advisories
    Advisory ID Software Component Link
    cisco-sa-cat3k-dos-ZZA4Gb3r URL Logo sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cat3k-dos-ZZA4Gb3r
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