A prompt bypass exists in the secondscreen.gateway service running on webOS version 4 through 7. An attacker can create a privileged account without asking the user for the security PIN. This vulnerability affects several LG TV models, including those running webOS versions 4.9.7, 5.5.0, 6.3.3-442, and 7.3.1-43.
The CVSS score for this vulnerability is 7.2, categorized as high severity, indicating a significant risk to affected systems. Organizations should prioritize patching immediately to mitigate potential exploitation.
Risk to organizations includes unauthorized creation of privileged accounts, potentially leading to further unauthorized access or manipulation of system settings. The vulnerability is primarily network-exploitable, with low attack complexity and no user interaction required.
Currently, there is no known public exploit for this vulnerability, but the potential for exploitation remains high given the nature of the flaw. Organizations should remain vigilant and monitor any updates from LG regarding this issue.
Patching affected systems should be treated as a priority, particularly for organizations deploying LG webOS devices in environments where sensitive data is handled or processed.
Vulnerability Details
The vulnerability, classified under CWE-639, pertains to a prompt bypass in the secondscreen.gateway service. The affected webOS versions are:
1. webOS 4.9.7 - 5.30.40 running on LG43UM7000PLA 2. webOS 5.5.0 - 04.50.51 running on OLED55CXPUA 3. webOS 6.3.3-442 (kisscurl-kinglake) - 03.36.50 running on OLED48C1PUB 4. webOS 7.3.1-43 (mullet-mebin) - 03.33.85 running on OLED55A23LA
The vulnerability has a CVSS score of 9.8 as classified by NVD, indicating critical severity regarding confidentiality, integrity, and availability impacts.
Technical Analysis
The root cause of this vulnerability is the improper handling of user authentication, allowing attackers to bypass security measures. The attack vector is classified as network-based, which means that an attacker can exploit this vulnerability remotely. The attack complexity is low, requiring no privileges or user interaction.
The impacts of this vulnerability include low confidentiality and integrity impacts, as attackers can gain unauthorized access to the system without user consent. Availability is not affected.
Risk & Impact Analysis
Real-world deployment of this vulnerability poses significant risks to organizations using affected LG webOS devices. The ability to create privileged accounts without user authentication could lead to unauthorized access to sensitive information or system configurations.
Organizations should assess the potential blast radius of this vulnerability, especially in environments where these devices are integral to operations or handle sensitive data. With a CVSS score of 9.8, the urgency for remediation is critical.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The following webOS versions and corresponding TV models are affected by this vulnerability:
1. webOS 4.9.7 - 5.30.40 running on LG43UM7000PLA 2. webOS 5.5.0 - 04.50.51 running on OLED55CXPUA 3. webOS 6.3.3-442 (kisscurl-kinglake) - 03.36.50 running on OLED48C1PUB 4. webOS 7.3.1-43 (mullet-mebin) - 03.33.85 running on OLED55A23LA
Mitigation & Remediation
Organizations should apply patches and updates as soon as they are available from LG. For additional security measures, consider implementing network segmentation to limit access to vulnerable devices. Regularly monitor security advisories from LG for any updates related to this vulnerability.
For comprehensive security assessments, organizations can utilize application security assessments to identify any additional vulnerabilities.
Detection Guidance
Organizations should monitor logs for any unauthorized access attempts or unusual account creation activities. Implement behavior-based alerts to detect anomalies that may indicate exploitation of this vulnerability.
AppSecure Threat Intelligence Insight
The significance of CVE-2023-6317 highlights the importance of maintaining up-to-date security practices for IoT devices, especially those used in consumer environments. This vulnerability represents a broader trend of vulnerabilities found in smart appliances and connected devices.
Organizations should consider adopting proactive security measures like red teaming and penetration testing to uncover vulnerabilities before they can be exploited. For guidance on effective security practices, refer to our red teaming services and penetration testing to validate the security posture.
In conclusion, the proactive identification and remediation of security vulnerabilities will bolster defenses against unauthorized access and potential breaches.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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