CVE-2022-20933
Summary
| CVE | CVE-2022-20933 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2022-10-26 15:15:00 UTC |
| Updated | 2023-11-07 03:43:00 UTC |
| Description | A vulnerability in the Cisco AnyConnect VPN server of Cisco Meraki MX and Cisco Meraki Z3 Teleworker Gateway devices could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient validation of client-supplied parameters while establishing an SSL VPN session. An attacker could exploit this vulnerability by crafting a malicious request and sending it to the affected device. A successful exploit could allow the attacker to cause the Cisco AnyConnect VPN server to crash and restart, resulting in the failure of the established SSL VPN connections and forcing remote users to initiate a new VPN connection and re-authenticate. A sustained attack could prevent new SSL VPN connections from being established. Note: When the attack traffic stops, the Cisco AnyConnect VPN server recovers gracefully without requiring manual intervention. Cisco Meraki has released software updates that address this vulnerability. |
Risk And Classification
Problem Types: NVD-CWE-Other
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Cisco | Meraki Mx100 | - | All | All | All |
| Operating System | Cisco | Meraki Mx100 Firmware | All | All | All | All |
| Hardware | Cisco | Meraki Mx105 | - | All | All | All |
| Operating System | Cisco | Meraki Mx105 Firmware | All | All | All | All |
| Hardware | Cisco | Meraki Mx250 | - | All | All | All |
| Operating System | Cisco | Meraki Mx250 Firmware | All | All | All | All |
| Hardware | Cisco | Meraki Mx400 | - | All | All | All |
| Operating System | Cisco | Meraki Mx400 Firmware | All | All | All | All |
| Hardware | Cisco | Meraki Mx450 | - | All | All | All |
| Operating System | Cisco | Meraki Mx450 Firmware | All | All | All | All |
| Hardware | Cisco | Meraki Mx600 | - | All | All | All |
| Operating System | Cisco | Meraki Mx600 Firmware | All | All | All | All |
| Hardware | Cisco | Meraki Mx64 | - | All | All | All |
| Hardware | Cisco | Meraki Mx64w | - | All | All | All |
| Operating System | Cisco | Meraki Mx64w Firmware | All | All | All | All |
| Operating System | Cisco | Meraki Mx64 Firmware | All | All | All | All |
| Hardware | Cisco | Meraki Mx65 | - | All | All | All |
| Hardware | Cisco | Meraki Mx65w | - | All | All | All |
| Operating System | Cisco | Meraki Mx65w Firmware | All | All | All | All |
| Operating System | Cisco | Meraki Mx65 Firmware | All | All | All | All |
| Hardware | Cisco | Meraki Mx67 | - | All | All | All |
| Hardware | Cisco | Meraki Mx67cw | - | All | All | All |
| Operating System | Cisco | Meraki Mx67cw Firmware | All | All | All | All |
| Hardware | Cisco | Meraki Mx67w | - | All | All | All |
| Operating System | Cisco | Meraki Mx67w Firmware | All | All | All | All |
| Operating System | Cisco | Meraki Mx67 Firmware | All | All | All | All |
| Hardware | Cisco | Meraki Mx68 | - | All | All | All |
| Hardware | Cisco | Meraki Mx68cw | - | All | All | All |
| Operating System | Cisco | Meraki Mx68cw Firmware | All | All | All | All |
| Hardware | Cisco | Meraki Mx68w | - | All | All | All |
| Operating System | Cisco | Meraki Mx68w Firmware | All | All | All | All |
| Operating System | Cisco | Meraki Mx68 Firmware | All | All | All | All |
| Hardware | Cisco | Meraki Mx75 | - | All | All | All |
| Operating System | Cisco | Meraki Mx75 Firmware | All | All | All | All |
| Hardware | Cisco | Meraki Mx84 | - | All | All | All |
| Operating System | Cisco | Meraki Mx84 Firmware | All | All | All | All |
| Hardware | Cisco | Meraki Mx85 | - | All | All | All |
| Operating System | Cisco | Meraki Mx85 Firmware | All | All | All | All |
| Hardware | Cisco | Meraki Mx95 | - | All | All | All |
| Operating System | Cisco | Meraki Mx95 Firmware | All | All | All | All |
| Hardware | Cisco | Meraki Vmx | - | All | All | All |
| Operating System | Cisco | Meraki Vmx Firmware | All | All | All | All |
| Hardware | Cisco | Meraki Z3 | - | All | All | All |
| Hardware | Cisco | Meraki Z3c | - | All | All | All |
| Operating System | Cisco | Meraki Z3c Firmware | - | All | All | All |
| Operating System | Cisco | Meraki Z3 Firmware | - | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| 20221019 Cisco Meraki MX and Z3 Teleworker Gateway VPN Denial of Service Vulnerability | CISCO | tools.cisco.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.