CVE-2018-0247
Summary
| CVE | CVE-2018-0247 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2018-05-02 22:29:00 UTC |
| Updated | 2019-10-09 23:31:00 UTC |
| Description | A vulnerability in Web Authentication (WebAuth) clients for the Cisco Wireless LAN Controller (WLC) and Aironet Access Points running Cisco IOS Software could allow an unauthenticated, adjacent attacker to bypass authentication and pass traffic. The vulnerability is due to incorrect implementation of authentication for WebAuth clients in a specific configuration. An attacker could exploit this vulnerability by sending traffic to local network resources without having gone through authentication. A successful exploit could allow the attacker to bypass authentication and pass traffic. This affects Cisco Aironet Access Points running Cisco IOS Software and Cisco Wireless LAN Controller (WLC) releases prior to 8.5.110.0 for the following specific WLC configuration only: (1) The Access Point (AP) is configured in FlexConnect Mode with NAT. (2) The WLAN is configured for central switching, meaning the client is being assigned a unique IP address. (3) The AP is configured with a Split Tunnel access control list (ACL) for access to local network resources, meaning the AP is doing the NAT on the connection. (4) The client is using WebAuth. This vulnerability does not apply to .1x clients in the same configuration. Cisco Bug IDs: CSCvc79502, CSCvf71789. |
Risk And Classification
Problem Types: CWE-287
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Cisco | Aironet Access Point Software | 8.3(104.105) | All | All | All |
| Operating System | Cisco | Aironet Access Point Software | 8.3\(104.105\) | All | All | All |
| Operating System | Cisco | Aironet Access Point Software | 8.5(107.52) | All | All | All |
| Operating System | Cisco | Aironet Access Point Software | 8.5\(107.52\) | All | All | All |
| Operating System | Cisco | Aironet Access Point Software | 8.3\(104.105\) | All | All | All |
| Operating System | Cisco | Aironet Access Point Software | 8.5\(107.52\) | All | All | All |
| Operating System | Cisco | Wireless Lan Controller Software | 8.3(104.105) | All | All | All |
| Operating System | Cisco | Wireless Lan Controller Software | 8.3\(104.105\) | All | All | All |
| Operating System | Cisco | Wireless Lan Controller Software | 8.3\(104.105\) | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Multiple Cisco Products CVE-2018-0247 Authentication Bypass Vulnerability | BID | www.securityfocus.com | Third Party Advisory, VDB Entry |
| Cisco Wireless LAN Controller WebAuth Bug Lets Remote Users Bypass Authentication on the Target Network - SecurityTracker | SECTRACK | www.securitytracker.com | Third Party Advisory, VDB Entry |
| Cisco Aironet Access Points WebAuth Bug Lets Remote Users Bypass Authentication on the Target Network - SecurityTracker | SECTRACK | www.securitytracker.com | Third Party Advisory, VDB Entry |
| Cisco Wireless LAN Controller and Aironet Access Points IOS WebAuth Client Authentication Bypass Vulnerability | CONFIRM | tools.cisco.com | Vendor Advisory |
| 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.