CVE-2019-10844 : Exploit Details and Defense Strategies

Sony Neural Network Libraries (nnabla) before version 1.0.14 has a vulnerability in the nbla/logger.cpp file that relies on the HOME environment variable, which may not be secure.

Understanding CVE-2019-10844

This CVE identifies a security issue in Sony Neural Network Libraries (nnabla) that could be exploited due to its dependency on the HOME environment variable.

What is CVE-2019-10844?

The nbla/logger.cpp file in the libnnabla.a library of Sony Neural Network Libraries (nnabla) before version 1.0.14 relies on the HOME environment variable, which could potentially be considered untrustworthy.

The Impact of CVE-2019-10844

This vulnerability could be exploited by attackers to compromise the security of systems using nnabla, potentially leading to unauthorized access or other malicious activities.

Technical Details of CVE-2019-10844

Sony Neural Network Libraries (nnabla) through version 1.0.14 is affected by this vulnerability due to its reliance on the HOME environment variable.

Vulnerability Description

The nbla/logger.cpp file in libnnabla.a in Sony Neural Network Libraries (nnabla) depends on the HOME environment variable, which might be untrusted.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: Not applicable

Exploitation Mechanism

The vulnerability can be exploited by manipulating the HOME environment variable, potentially allowing attackers to execute unauthorized actions on the affected system.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent exploitation of this vulnerability.

Immediate Steps to Take

Update nnabla to version 1.0.14 or later to mitigate the vulnerability.
Avoid running nnabla in environments where the HOME variable is untrusted.

Long-Term Security Practices

Regularly monitor and review environment variables for any suspicious changes.
Implement secure coding practices to reduce reliance on external variables for critical operations.

Patching and Updates

Ensure that all software components, including nnabla, are regularly updated with the latest security patches to prevent exploitation of known vulnerabilities.