CVE-2023-21708CWE-191

Remote Procedure Call Runtime Remote Code Execution Vulnerability

Critical · published March 14, 2023

CVSS v3.1
9.8
EPSS
1%
Percentile
73.8
In the wild
Unconfirmed
What it is

🚨 A single misstep in the Remote Procedure Call (RPC) Runtime could let an attacker execute malicious code as if they were the rightful owner — no user interaction required! 🔥 Think of it as a restaurant where the chef can prepare any dish just by saying the order aloud, with no one checking if the request is valid. If that chef turns rogue, they can serve anything, and you won't even realize it until it’s too late! An attacker could gain full control of your system, modify files, and even install rogue software. This vulnerability is a recipe for disaster, opening the door to devastating data breaches or system takeovers.

Put simply

Think of it as a restaurant where the chef can prepare any dish just by saying the order aloud, with no one checking if the request is valid. If that chef turns rogue, they can serve anything, and you won't even realize it until it’s too late! This remote code execution vulnerability allows an unauthenticated attacker to send specially crafted requests to the RPC Runtime, leading to arbitrary code execution on affected systems.

What to do

An attacker could gain full control of your system, modify files, and even install rogue software. This vulnerability is a recipe for disaster, opening the door to devastating data breaches or system takeovers. Update your systems immediately to the latest version provided by your vendor. If you manage your own RPC service, review your configurations and apply any security patches available. Don’t forget to monitor your logs for any suspicious activities! You've got this! Follow these steps, and you'll keep your systems safe and sound. 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.01486 · 73.8th percentile
Weakness
CWE-191 · Integer Underflow (Wrap or Wraparound)
Published
2023-03-14T16:55Z
EPSS history
Timeline
  • 14 MAR 16:55Z
    Remote Procedure Call Runtime Remote Code Execution Vulnerability
    cvelistv5