TL;DR 📌

A command injection vulnerability has been identified in the HTTP API subsystem of Cisco IOS XE Software. This flaw could allow an attacker to execute commands with root privileges, posing a significant security risk. Users are advised to upgrade to fixed software as there are no workarounds available.

What happened 🕵️‍♂️

Cisco has disclosed a vulnerability in the HTTP API subsystem of Cisco IOS XE Software that could allow a remote attacker to inject commands that execute with root privileges. This vulnerability arises from insufficient input validation. An attacker with administrative privileges could exploit this by authenticating to an affected system and making an API call with crafted input. Alternatively, an unauthenticated attacker could trick a legitimate user with administrative privileges into clicking a malicious link. Successful exploitation could lead to arbitrary command execution as the root user.