CVE-2023-20273: Cisco IOS XE Web UI Command Injection Vulnerability

CVE-2023-20273 · Severity: critical · CVSS 7.2 · Exploited in the wild · Published 2023-10-23

A command injection vulnerability in the Cisco IOS XE Web UI allows an authenticated, remote attacker to execute commands with root privileges due to insufficient input validation. This vulnerability was actively exploited in the wild, often chained with CVE-2023-20198, to deploy a persistent implant on the file system.

Vendors: Cisco.

Quick answers

Is CVE-2023-20273 exploited in the wild?
Yes. CVE-2023-20273 is known to be exploited in the wild, first recorded on 23 October 2023. Treat it as urgent.
How severe is CVE-2023-20273?
Critical severity, with a CVSS score of 7.2, published 23 October 2023.
Which products and versions are affected?
Cisco IOS XE 16.1.1 and later.
Is there a fix for CVE-2023-20273?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2023-20273 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2023-20273?
Check whether you run Cisco Ios Xe Web Ui or Cisco IOS XE Web UI. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Cisco IOS XE 16.1.1 and later

Timeline

  • 2023-10-23: disclosed
  • 2023-10-23: kev added: Added to CISA Known Exploited Vulnerabilities Catalog

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