Description

A vulnerability in the Cisco AnyConnect VPN server of Cisco Meraki MX and Cisco Meraki Z Series Teleworker Gateway devices could allow an unauthenticated, remote attacker to hijack an AnyConnect VPN session or cause a denial of service (DoS) condition for individual users of the AnyConnect VPN service on an affected device. This vulnerability is due to weak entropy for handlers that are used during the VPN authentication process as well as a race condition that exists in the same process. An attacker could exploit this vulnerability by correctly guessing an authentication handler and then sending crafted HTTPS requests to an affected device. A successful exploit could allow the attacker to take over the AnyConnect VPN session from a target user or prevent the target user from establishing an AnyConnect VPN session with the affected device.

INFO

Published Date :

2024-10-02T18:24:42.768Z

Last Modified :

2025-06-04T20:14:04.575Z

Source :

cisco
AFFECTED PRODUCTS

The following products are affected by CVE-2024-20509 vulnerability.

Vendors Products
Cisco
  • Meraki Mx100
  • Meraki Mx100 Firmware
  • Meraki Mx105
  • Meraki Mx105 Firmware
  • Meraki Mx250
  • Meraki Mx250 Firmware
  • Meraki Mx400
  • Meraki Mx400 Firmware
  • Meraki Mx450
  • Meraki Mx450 Firmware
  • Meraki Mx600
  • Meraki Mx600 Firmware
  • Meraki Mx64
  • Meraki Mx64 Firmware
  • Meraki Mx64w
  • Meraki Mx64w Firmware
  • Meraki Mx65
  • Meraki Mx65 Firmware
  • Meraki Mx65w
  • Meraki Mx65w Firmware
  • Meraki Mx67
  • Meraki Mx67 Firmware
  • Meraki Mx67c
  • Meraki Mx67c Firmware
  • Meraki Mx67w
  • Meraki Mx67w Firmware
  • Meraki Mx68
  • Meraki Mx68 Firmware
  • Meraki Mx68cw
  • Meraki Mx68cw Firmware
  • Meraki Mx68w
  • Meraki Mx68w Firmware
  • Meraki Mx75
  • Meraki Mx75 Firmware
  • Meraki Mx84
  • Meraki Mx84 Firmware
  • Meraki Mx85
  • Meraki Mx85 Firmware
  • Meraki Mx95
  • Meraki Mx95 Firmware
  • Meraki Vmx
  • Meraki Vmx Firmware
  • Meraki Z3
  • Meraki Z3 Firmware
  • Meraki Z3c
  • Meraki Z3c Firmware
  • Meraki Z4
  • Meraki Z4 Firmware
  • Meraki Z4c
  • Meraki Z4c Firmware
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2024-20509.

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact