CVE-2010-2984 in Unified Wireless Network Solution Software
Summary
by MITRE
Cisco Unified Wireless Network (UWN) Solution 7.x before 7.0.98.0 on 4404 series controllers does not properly implement the WEBAUTH_REQD state, which allows remote attackers to bypass intended access restrictions via WLAN traffic, aka Bug ID CSCtb75305.
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Analysis
by VulDB Data Team • 01/03/2018
The vulnerability identified as CVE-2010-2984 affects Cisco Unified Wireless Network Solution version 7.x prior to 7.0.98.0 running on 4404 series wireless controllers. This issue resides in the improper implementation of the WEBAUTH_REQD state within the wireless authentication framework, creating a significant security gap that could be exploited by remote attackers. The flaw specifically impacts the authentication and authorization processes that govern wireless network access, potentially allowing unauthorized users to gain access to network resources that should be restricted.
The technical implementation flaw occurs within the wireless authentication state machine where the WEBAUTH_REQD state fails to properly enforce access controls. This state should require web-based authentication before granting network access, but the implementation contains a logic error that permits subsequent WLAN traffic to bypass these authentication requirements. Attackers can exploit this by sending specific wireless traffic patterns that trigger the flawed state transition, effectively circumventing the intended authentication workflow. The vulnerability operates at the network protocol level, specifically within the wireless authentication and authorization mechanisms that control access to wireless resources.
Operationally, this vulnerability creates a persistent security risk for organizations relying on Cisco 4404 series controllers for wireless network management. Remote attackers can exploit this weakness from outside the network perimeter without requiring physical access or valid credentials, making the attack surface significantly broader than typical authentication bypass vulnerabilities. The impact extends beyond simple unauthorized access to potentially allow attackers to perform man-in-the-middle attacks, intercept network traffic, or escalate privileges within the wireless network infrastructure. This vulnerability directly violates the principle of least privilege and can enable attackers to establish persistent access points within the wireless network environment.
Organizations should immediately implement the vendor-provided security patch for Cisco Unified Wireless Network Solution version 7.0.98.0 or later to remediate this vulnerability. Network administrators should also consider implementing additional monitoring controls to detect anomalous wireless traffic patterns that might indicate exploitation attempts. The vulnerability aligns with CWE-284, which addresses improper access control, and maps to ATT&CK technique T1078 for Valid Accounts and T1566 for Phishing, as attackers could leverage this weakness to establish unauthorized network presence. Security teams should conduct comprehensive network assessments to identify any potential exploitation and implement network segmentation to limit the impact should the vulnerability be successfully exploited.