CVE-2017-17793 : Security Advisory and Response

BlogoText through version 3.7.6 is affected by an Information Disclosure vulnerability that allows remote attackers to access sensitive information on Windows servers.

Understanding CVE-2017-17793

The creer_fichier_zip function in the admin/maintenance.php file of BlogoText is susceptible to exploitation, enabling attackers to obtain sensitive data.

What is CVE-2017-17793?

The vulnerability in BlogoText version 3.7.6 allows remote attackers to bypass filename-randomization protection and access backup archives on Windows servers by providing a specific filename.

The Impact of CVE-2017-17793

Attackers can exploit this vulnerability to retrieve sensitive information stored in backup archives, potentially compromising the confidentiality of data.

Technical Details of CVE-2017-17793

The technical aspects of the vulnerability are as follows:

Vulnerability Description

The creer_fichier_zip function in admin/maintenance.php in BlogoText through version 3.7.6 allows remote attackers to defeat filename-randomization protection and read backup archives on Windows servers by providing a specific filename.

Affected Systems and Versions

Product: BlogoText
Vendor: N/A
Versions affected: All versions up to 3.7.6

Exploitation Mechanism

Attackers can exploit the vulnerability by providing the archiv~1.zip name, an 8.3 filename, to bypass the filename-randomization protection mechanism.

Mitigation and Prevention

To address CVE-2017-17793, consider the following mitigation strategies:

Immediate Steps to Take

Update BlogoText to the latest version to patch the vulnerability.
Monitor system logs for any suspicious activities.

Long-Term Security Practices

Implement access controls to restrict unauthorized access to sensitive files.
Regularly backup data to prevent data loss in case of a security breach.

Patching and Updates

Apply security patches promptly to ensure the system is protected against known vulnerabilities.