CVE-2022-40363 : Security Advisory and Response
Discover the impact of CVE-2022-40363, a buffer overflow flaw in Flipper Zero devices pre-v0.65.2, enabling DoS attacks via crafted NFC files. Learn mitigation steps.
A buffer overflow vulnerability has been identified in the component nfc_device_load_mifare_ul_data of Flipper Devices Inc.'s Flipper Zero devices before version v0.65.2. This vulnerability could be exploited by attackers to trigger a Denial of Service (DoS) attack by using a maliciously crafted NFC file.
Understanding CVE-2022-40363
This section will cover the key details regarding the CVE-2022-40363 vulnerability.
What is CVE-2022-40363?
CVE-2022-40363 is a buffer overflow flaw found in Flipper Zero devices that could be abused by threat actors to conduct DoS attacks leveraging specially crafted NFC files.
The Impact of CVE-2022-40363
The exploitation of this vulnerability could lead to service disruptions, rendering the affected Flipper Zero devices temporarily unavailable.
Technical Details of CVE-2022-40363
In this section, we will delve into the technical aspects of CVE-2022-40363.
Vulnerability Description
The buffer overflow occurs in the nfc_device_load_mifare_ul_data component of Flipper Zero devices, affecting versions prior to v0.65.2.
Affected Systems and Versions
Flipper Zero devices before v0.65.2 are confirmed to be impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit this flaw by supplying a malicious NFC file, triggering the buffer overflow and causing a DoS condition.
Mitigation and Prevention
To safeguard systems from CVE-2022-40363, it is essential to implement immediate mitigation measures and adopt long-term security practices.
Immediate Steps to Take
Organizations are advised to restrict NFC interactions and implement access controls to prevent unauthorized access to affected Flipper Zero devices.
Long-Term Security Practices
Regularly updating firmware, monitoring NFC activities, and applying security patches are crucial for maintaining the security of Flipper Zero devices.
Patching and Updates
Users should ensure that affected devices are updated to version v0.65.2 or newer, where the vulnerability has been addressed.