Use of Default Credentials vulnerability in Tananaev Solutions Traccar Server on Administrator Panel modules allows Authentication Abuse.This issue affects the privileged transactions implemented by the Traccar solution that should otherwise be protected by the authentication mechanism.  These transactions could have an impact on any sensitive aspect of the platform, including Confidentiality, Integrity and Availability.

Traccar is an open source GPS tracking system. Traccar versions 5.1 through 5.12 allow arbitrary files to be uploaded through the device image upload API. Attackers have full control over the file contents, full control over the directory where the file is stored, full control over the file extension, and partial control over the file name. While it's not for an attacker to overwrite an existing file, an attacker can create new files with certain names and attacker-controlled extensions anywhere on the file system. This can potentially lead to remote code execution, XSS, DOS, etc. The default install of Traccar makes this vulnerability more severe. Self-registration is enabled by default, allowing anyone to create an account to exploit this vulnerability. Traccar also runs by default with root/system privileges, allowing files to be placed anywhere on the file system. Version 6.0 contains a fix for the issue. One may also turn off self-registration by default, as that would make most vulnerabilities in the application much harder to exploit by default and reduce the severity considerably.

Traccar is an open source GPS tracking system. Prior to 5.11, Traccar is affected by an unrestricted file upload vulnerability in File feature allows attackers to execute arbitrary code on the server. This vulnerability is more prevalent because Traccar is recommended to run web servers as root user. It is also more dangerous because it can write or overwrite files in arbitrary locations. Version 5.11 was published to fix this vulnerability.