CVE-2023-41097 : Vulnerability Insights and Analysis
Explore CVE-2023-41097, a vulnerability in Silabs GSDK on ARM impacting versions up to 4.4.0. Learn about the impact, exploitation, and mitigation steps.
A detailed analysis of a potential Timing vulnerability in CBC PKCS7 padding calculations affecting Silabs GSDK.
Understanding CVE-2023-41097
In this section, we will explore what CVE-2023-41097 entails.
What is CVE-2023-41097?
CVE-2023-41097 is an Observable Timing Discrepancy, Covert Timing Channel vulnerability in Silabs GSDK on ARM that potentially allows a Padding Oracle Crypto Attack on CBC PKCS7. The issue affects GSDK versions up to 4.4.0.
The Impact of CVE-2023-41097
This vulnerability has a CVSS v3.1 base score of 4.6, categorizing it as a medium severity issue. It can lead to high confidentiality impact as an attacker could exploit this vulnerability to launch a Padding Oracle Crypto Attack.
Technical Details of CVE-2023-41097
Let's dive deeper into the technical aspects of CVE-2023-41097.
Vulnerability Description
The vulnerability arises from an Observable Timing Discrepancy and Covert Timing Channel in Silabs GSDK, allowing unauthorized access via a Padding Oracle Crypto Attack on CBC PKCS7.
Affected Systems and Versions
Silabs GSDK on ARM platforms up to version 4.4.0 are impacted by this vulnerability.
Exploitation Mechanism
The vulnerability could be exploited through a Padding Oracle Crypto Attack, taking advantage of the Timing Discrepancy and Covert Timing Channel in CBC PKCS7.
Mitigation and Prevention
Discover the steps to mitigate and prevent the exploitation of CVE-2023-41097.
Immediate Steps to Take
Users are advised to update to GSDK version 4.4.0 or above to mitigate this vulnerability. Additionally, closely monitor security updates from Silabs to stay protected.
Long-Term Security Practices
Implementing secure coding practices and conducting regular security audits can enhance the overall security posture and prevent similar vulnerabilities.
Patching and Updates
Silabs has released a patch for this vulnerability. Users are recommended to visit the Silabs' official repository to download and apply the necessary updates.