QID 317034

Date Published: 2021-09-09

QID 317034: Cisco Internetwork Operating System (IOS) XR Software Arbitrary File Read and Write Vulnerability (cisco-sa-iosxr-scp-inject-QwZOCv2)

A vulnerability in the SSH Server process of Cisco IOS XR Software could allow an authenticated,
remote attacker to overwrite and read arbitrary files on the local device.

Affected Products
Cisco IOS XR Software releases earlier than Release 7.3.2 and Release 7.4.1.

QID Detection Logic (Authenticated):
The check matches Cisco IOS XR version retrieved via Unix Auth using "show version"
command.

A successful exploit could allow the attacker to elevate their privileges and retrieve and upload files on a device that they should not have access to.

  • CVSS V2 rated as High - 7.5 severity.
    • Solution

    Customers are advised to refer to cisco-sa-iosxr-scp-inject-QwZOCv2 for more information.

    Vendor References

    CVEs related to QID 317034

    CVE-2021-34718 |
    Software Advisories
    Advisory ID Software Component Link
    cisco-sa-iosxr-scp-inject-QwZOCv2 URL Logo tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-scp-inject-QwZOCv2
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