CVE-2020-3684 : Exploit Details and Defense Strategies
Learn about CVE-2020-3684, a security vulnerability in Qualcomm Snapdragon products allowing unauthorized access. Find mitigation steps and patching details here.
A vulnerability in Qualcomm products could allow unauthorized access to sensitive information.
Understanding CVE-2020-3684
This CVE involves a security issue in various Qualcomm products that could lead to access control problems.
What is CVE-2020-3684?
The vulnerability allows Qualcomm Secure Execution Environment (QSEE) to apply access permissions without proper validation, potentially exposing sensitive data.
The Impact of CVE-2020-3684
This vulnerability could be exploited by attackers to gain unauthorized access to protected information stored in Qualcomm devices.
Technical Details of CVE-2020-3684
Qualcomm products are affected by a flaw in the access permission policy enforcement within the Secure Memory (SMEM) Table of Contents (TOC) partition.
Vulnerability Description
QSEE reads access permissions from SMEM TOC populated by XBL Loader and applies them without validation, leading to unauthorized access.
Affected Systems and Versions
- Products: Snapdragon Auto, Compute, Connectivity, Consumer IOT, Industrial IOT, Mobile, Voice & Music, Wired Infrastructure, Networking
- Versions: Agatti, APQ8009, APQ8098, Bitra, IPQ6018, Kamorta, MDM series, MSM series, Nicobar, QCA series, QCS series, Rennell, SA series, Saipan, SC series, SDA series, SDM series, SDX series, SM series, SXR series
Exploitation Mechanism
The vulnerability allows attackers to bypass access control mechanisms and potentially access sensitive data stored in Qualcomm devices.
Mitigation and Prevention
Immediate action and long-term security practices are crucial to mitigate the risks associated with CVE-2020-3684.
Immediate Steps to Take
- Apply security patches provided by Qualcomm promptly
- Monitor for any unauthorized access or unusual activities on affected devices
Long-Term Security Practices
- Regularly update firmware and software to address security vulnerabilities
- Implement strong access control policies and monitor access to sensitive data
- Conduct security assessments and audits periodically
Patching and Updates
- Qualcomm has released security bulletins addressing the vulnerability
- Ensure all affected devices are updated with the latest patches to mitigate the risk of unauthorized access