CVE-2021-41848 : Security Advisory and Response

An issue was discovered in Luna Simo PPR1.180610.011/202001031830. It mishandles software updates allowing local third-party apps to execute arbitrary code as the root user. The vulnerability grants extensive permissions, potentially exposing Personally Identifiable Information.

Understanding CVE-2021-41848

What is CVE-2021-41848?

An issue in Luna Simo PPR1.180610.011/202001031830 mishandles software updates, potentially allowing malicious third-party apps to execute code with root privileges.

The Impact of CVE-2021-41848

The vulnerability enables unauthorized local apps to gain root access, install apps, access PII, intercept network traffic, and execute arbitrary code persistently.

Technical Details of CVE-2021-41848

Vulnerability Description

Mishandles software updates, allowing local apps to execute arbitrary code as the root user with extensive permissions.

Affected Systems and Versions

Luna Simo PPR1.180610.011/202001031830

Exploitation Mechanism

Local third-party apps need write access to external storage to upload a spoofed update with an arbitrary shell script and ARM binary.

Mitigation and Prevention

Immediate Steps to Take

Regularly update the system to patch known vulnerabilities.
Avoid granting unnecessary permissions to third-party apps.
Monitor outgoing network traffic for any unusual behavior.

Long-Term Security Practices

Implement proper data encryption mechanisms for sensitive information.
Conduct regular security audits and penetration testing to identify vulnerabilities.
Educate users on the risks of granting extensive permissions to apps.
Implement permission controls and sandboxing mechanisms.
Implement secure software update mechanisms.
Utilize reputable app sources and verify app permissions.

Patching and Updates

Apply security patches from the vendor to address the CVE-2021-41848 vulnerability.