CVE-2022-23304 is a critical vulnerability affecting the implementations of EAP-pwd in hostapd and wpa_supplicant versions before 2.10. This vulnerability allows attackers to conduct side-channel attacks due to cache access patterns. The issue arises from an incomplete fix for CVE-2019-9495, meaning that systems using these affected versions remain vulnerable.
With a CVSS score of 9.8, this vulnerability is classified as critical, indicating a high level of risk to organizations. The potential impact includes unauthorized access to sensitive information, as well as disruptions to availability and integrity. Given the attack vector is network-based and the complexity is low, immediate attention is warranted.
Organizations should prioritize patching immediately, as attackers may leverage this vulnerability to execute side-channel attacks remotely. The urgency is underscored by the potential for severe consequences if exploited.
As of now, there are no confirmed public exploits available, and the vulnerability has not been included in the Known Exploited Vulnerabilities (KEV) catalog. However, the risk remains significant, and organizations must remain vigilant.
To mitigate the risk, organizations should update to version 2.10 or later of both hostapd and wpa_supplicant and monitor for any unusual activity within their networks.
Vulnerability Details
The vulnerability is characterized by its implementation in the Extensible Authentication Protocol (EAP) password (EAP-pwd) mechanism, which is utilized in network authentication processes. The affected versions include hostapd versions prior to 2.10 and wpa_supplicant versions prior to 2.10. The issue is classified under CWE-203, which refers to exposure of sensitive information through an error in the application.
The vulnerability was published on January 17, 2022, and the official description emphasizes the impact of side-channel attacks due to cache access patterns. Organizations using affected versions should take immediate action to patch their systems.
Technical Analysis
The root cause of CVE-2022-23304 lies in the improper handling of cache access patterns during EAP-pwd authentication processes. Specifically, the implementation does not adequately mitigate side-channel attacks, allowing attackers to exploit timing or cache behavior to gain sensitive information. The attack vector is through network access, meaning an attacker does not need physical access to the vulnerable system to exploit this weakness.
The complexity of the attack is assessed as low, as no special privileges or user interaction is required for exploitation. The vulnerability has high impacts on confidentiality, integrity, and availability, making its exploitation particularly dangerous.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2022-23304 is substantial. Attackers exploiting this vulnerability could gain unauthorized access to sensitive data transmitted over the network, leading to potential data breaches. The blast radius of this vulnerability is considerable, as it affects multiple deployments of hostapd and wpa_supplicant across various devices and networks.
Organizations should assess their exposure to this vulnerability, particularly those using Fedora or systems relying on hostapd and wpa_supplicant for network authentication. The urgency for remediation is critical, as failure to address this vulnerability can lead to severe consequences including data loss and compromised system integrity.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerable versions include all versions of hostapd and wpa_supplicant prior to 2.10, as well as Fedora version 35. Organizations should ensure they are operating on the latest versions to mitigate this vulnerability.
Mitigation & Remediation
Organizations should prioritize upgrading to the patched versions of hostapd and wpa_supplicant, specifically to version 2.10 or later. In addition to patching, configuration hardening should be implemented to limit exposure to potential attacks. Organizations can also benefit from conducting regular security assessments and monitoring network traffic for unusual patterns.
For more information on effective penetration testing strategies, organizations can explore our penetration testing services to identify and mitigate similar vulnerabilities.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor logs for unusual authentication attempts, review configuration changes, and identify any anomalies in network traffic that may suggest an ongoing attack. Additionally, ensuring that logging is comprehensive will aid in identifying malicious activities related to this vulnerability.
AppSecure Threat Intelligence Insight
CVE-2022-23304 highlights the ongoing need for vigilance in the security landscape, particularly regarding network authentication protocols. While no active exploitation has been confirmed, the critical nature of this vulnerability should prompt organizations to reinforce their security practices.
Security teams should focus on comprehensive vulnerability management strategies to proactively identify and remediate vulnerabilities before they can be exploited. For further insights on vulnerability management, organizations can refer to our guide on vulnerability management practices and develop a robust response plan.
Moreover, continuous improvement in security posture can be achieved through regular assessments. Our penetration testing methodology provides organizations with foundational knowledge to enhance their security frameworks.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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