CVE-2017-13082 in MICROS Handheld Terminal
Summary
by MITRE
Wi-Fi Protected Access (WPA and WPA2) that supports IEEE 802.11r allows reinstallation of the Pairwise Transient Key (PTK) Temporal Key (TK) during the fast BSS transmission (FT) handshake, allowing an attacker within radio range to replay, decrypt, or spoof frames.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 03/02/2023
The vulnerability described in CVE-2017-13082 represents a critical flaw in the Wi-Fi Protected Access protocol family, specifically affecting both WPA and WPA2 implementations that support IEEE 802.11r fast BSS transition functionality. This weakness arises from improper handling of cryptographic key reinstallation during the fast roaming process, creating a pathway for sophisticated attackers to compromise wireless network security. The vulnerability operates at the protocol level within the 802.11 wireless standard, making it particularly dangerous as it targets the fundamental security mechanisms that protect wireless communications.
The technical flaw manifests during the fast BSS transition handshake process where the Pairwise Transient Key (PTK) and its associated Temporal Key (TK) are reinstalled without proper cryptographic safeguards. This reinstallation occurs when the Fast BSS Transition protocol sends the same Message 3 of the four-way handshake to a client device, causing the device to reinstall the same key material it had previously established. The vulnerability is categorized under CWE-327, which addresses the use of weak cryptographic algorithms, and specifically aligns with CWE-328, concerning the use of weak hash functions. The flaw enables attackers to manipulate the cryptographic state of the wireless connection, effectively allowing them to bypass the security protections that should prevent unauthorized access to network traffic.
From an operational perspective, this vulnerability creates severe security implications for wireless networks as it allows attackers within radio range to perform several malicious activities including frame replay attacks, decryption of protected wireless traffic, and spoofing of legitimate network communications. The attack requires only proximity to the target network and does not necessitate complex exploitation techniques or elevated privileges. The impact extends beyond simple eavesdropping to include potential man-in-the-middle attacks where an attacker can intercept, modify, and inject data into wireless communications. This vulnerability directly maps to ATT&CK technique T1046, which involves network service scanning, and T1071.003, covering application layer protocol: DNS, as attackers can leverage the compromised wireless connection to establish unauthorized network access points.
The mitigation strategies for CVE-2017-13082 involve implementing several defensive measures including disabling Fast BSS Transition functionality when possible, updating wireless access points and client devices with security patches, and implementing additional network monitoring to detect anomalous key reinstallation patterns. Network administrators should also consider deploying wireless intrusion detection systems that can identify and alert on suspicious key reinstallation activities. The most effective long-term solution involves upgrading to WPA3 security protocols which inherently address these vulnerabilities through improved cryptographic implementations and better key management processes. Organizations should conduct regular security assessments of their wireless infrastructure to identify and remediate similar vulnerabilities, as the flaw demonstrates how seemingly minor protocol implementation details can create significant security risks in wireless environments.