CVE-2022-44745 - Sensitive Information Leak through Log Files in Acronis Cyber Protect Home Office (Windows) before Build 40107

The vulnerability CVE-2022-44745 has been identified in Acronis Cyber Protect Home Office (Windows) before build 40107. This sensitive information leak through log files can potentially allow an attacker to gain unauthorized access to critical information that may lead to unauthorized activities in the system. In this long read post, we will explore the details of this vulnerability, including affected products, exploit details, and recommendations for mitigation.

Affected Products

The vulnerability affects the Acronis Cyber Protect Home Office (Windows) before build 40107. Acronis Cyber Protect Home Office is a popular backup and security software product used by home office users to protect their systems from potential threats and ensure that their data is safe and always available.

Reference: Acronis Cyber Protect Home Office Product Page

Exploit Details

The root cause of this vulnerability is the improper handling of sensitive information in log files generated by the Acronis Cyber Protect Home Office software. Specifically, the log files may include sensitive user data such as usernames, passwords, and other crucial information that should not be accessible to unauthorized users.

Here is a code snippet showing the leak of sensitive information in log files

# Example of log file generation with sensitive data leakage

def backup_system(username, password):
    # Backup process code ...
    log_entry = f"Backup started for user {username} with password {password}"
    write_log(log_entry)

def write_log(log_entry):
    with open("acronis_log.txt", "a") as log_file:
        log_file.write(log_entry + "\n")

In this example, the backup_system function creates a log entry containing the user's username and password, which is then written to the acronis_log.txt file by the write_log function. This log file can be accessed by any user who has read access to the file, exposing the sensitive information.

Original References

- CVE-2022-44745 Details at NIST National Vulnerability Database

- Acronis Cyber Protect Home Office Release Notes

Mitigations and Recommendations

Users of Acronis Cyber Protect Home Office (Windows) are strongly advised to upgrade their software to build 40107 or later to address this vulnerability. The latest build can be obtained from the Acronis website. In addition, users should follow these recommendations:

1. Restrict access to log files: Ensure that only authorized users have access to log files that may contain sensitive information. Access control policies and permissions should be reviewed and updated as needed to prevent unauthorized access.

2. Monitor log file activity: Regularly review log files to identify potential security issues, including unauthorized access attempts and suspicious activity.

3. Implement secure logging practices: Develop and enforce secure logging practices, such as using encryption or hashing of sensitive data, or maintaining logs in separate, secure locations.

4. Educate users about cybersecurity best practices: Provide training and resources to help users understand the importance of secure practices when handling sensitive information, including not sharing passwords or other sensitive data.

Conclusion

The CVE-2022-44745 vulnerability in Acronis Cyber Protect Home Office (Windows) before build 40107 is a critical issue that, if not addressed, could lead to sensitive information exposure. Users are encouraged to upgrade their software and implement the recommendations provided to mitigate the risks associated with this vulnerability.

Timeline

Published on: 11/07/2022 20:15:00 UTC
Last modified on: 11/08/2022 19:15:00 UTC