CVE-2018-0247
published 2018-05-02CVE-2018-0247: A vulnerability in Web Authentication (WebAuth) clients for the Cisco Wireless LAN Controller (WLC) and Aironet Access Points running Cisco IOS Software could…
PriorityP424medium4.7CVSS 3.0
AVAACLPRNUINSCCNILAN
EPSS
0.95%
57.2th percentile
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.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | aironet_access_point_software | — | — |
| cisco | aironet_access_point_software | — | — |
| cisco | wireless_lan_controller_and_aironet_access_points_ios_webauth | — | — |
| cisco | wireless_lan_controller_software | — | — |
CVSS provenance
nvdv3.04.7MEDIUMCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
nvdv2.03.3LOWAV:A/AC:L/Au:N/C:N/I:P/A:N
vendor_cisco4.7MEDIUM
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GHSA
GHSA-f75h-vqxj-crqh: A vulnerability in Web Authentication (WebAuth) clients for the Cisco Wireless LAN Controller (WLC) and Aironet Access Points running Cisco IOS Softwa
ghsa_unreviewed·2022-05-13
CVE-2018-0247 [MEDIUM] CWE-287 GHSA-f75h-vqxj-crqh: A vulnerability in Web Authentication (WebAuth) clients for the Cisco Wireless LAN Controller (WLC) and Aironet Access Points running Cisco IOS Softwa
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 (A
Cisco
Cisco Wireless LAN Controller and Aironet Access Points IOS WebAuth Client Authentication Bypass Vulnerability
vendor_cisco·2018-05-02·CVSS 4.7
CVE-2018-0247 [MEDIUM] CWE-287 Cisco Wireless LAN Controller and Aironet Access Points IOS WebAuth Client Authentication Bypass Vulnerability
Cisco Wireless LAN Controller and Aironet Access Points IOS WebAuth Client Authentication Bypass Vulnerability
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.
There are no workarounds that address this vulnerability.
This advisory is available at the fol
Cisco
Cisco Wireless LAN Controller and Aironet Access Points IOS WebAuth Client Authentication Bypass Vulnerability
vendor_cisco·CVSS 3.0
CVE-2018-0247 Cisco Wireless LAN Controller and Aironet Access Points IOS WebAuth Client Authentication Bypass Vulnerability
CVE-2018-0247: Cisco Wireless LAN Controller and Aironet Access Points IOS WebAuth Client Authentication Bypass Vulnerability
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. There are no
CVSS: 3.0
CWE: CWE-287, CWE-287
Bug IDs: CSCvc79502, CSCvf71789
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
http://www.securityfocus.com/bid/104087http://www.securitytracker.com/id/1040814http://www.securitytracker.com/id/1040815https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180502-aironet-authhttp://www.securityfocus.com/bid/104087http://www.securitytracker.com/id/1040814http://www.securitytracker.com/id/1040815https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180502-aironet-auth
2018-05-02
Published