QID 317229

Date Published: 2022-10-10

QID 317229: Cisco Internetwork Operating System (IOS) and IOS XE Software SSH Denial of Service (DoS) Vulnerability (cisco-sa-ssh-excpt-dos-FzOBQTnk)

A vulnerability in the SSH implementation of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected device to reload.

Affected Products
This vulnerability affects Cisco devices if they are running a vulnerable release of Cisco IOS or IOS XE Software and are configured to accept SSH connections.

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 affected device to reload.

  • CVSS V3 rated as High - 7.7 severity.
  • CVSS V2 rated as High - 7.8 severity.
    • Solution

    Customers are advised to refer to cisco-sa-ssh-excpt-dos-FzOBQTnk for more information.

    Vendor References

    CVEs related to QID 317229

    CVE-2022-20920 |
    Software Advisories
    Advisory ID Software Component Link
    cisco-sa-ssh-excpt-dos-FzOBQTnk URL Logo tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ssh-excpt-dos-FzOBQTnk
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