QID 317133

Date Published: 2022-02-03

QID 317133: Cisco Internetwork Operating System (IOS) XE SD-WAN Software vDaemon Denial of Service (DoS) Vulnerability (cisco-sa-iosxe-sdwdos-4zeEeC9w)

A vulnerability in the vDaemon process of Cisco IOS XE SD-WAN Software could allow an unauthenticated,
remote attacker to cause a device to reload, resulting a denial of service (DoS) condition.

Affected Products:
Following Cisco products if they are running a vulnerable release of Cisco IOS XE SD-WAN Software and have the SD-WAN feature enabled:
1000 Series Integrated Services Routers (ISRs)
4000 Series ISRs
ASR 1000 Series Aggregation Services Routers
Cloud Services Router 1000V Series
Note: The SD-WAN feature is not enabled by default.

QID Detection Logic (Authenticated):
The check matches Cisco IOS XE SDWAN 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 High - 7.5 severity.
  • CVSS V2 rated as High - 7.8 severity.
    • Solution

    Customers are advised to refer to cisco-sa-iosxe-sdwdos-4zeEeC9w for more information.

    Vendor References

    CVEs related to QID 317133

    CVE-2021-1431 |
    Software Advisories
    Advisory ID Software Component Link
    cisco-sa-iosxe-sdwdos-4zeEeC9w URL Logo tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-sdwdos-4zeEeC9w
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