PostgreSQL File Read Detection Scanner

PostgreSQL is a powerful, open-source object-relational database system widely used in web applications, data warehousing, and scientific applications. It is employed by diverse organizations due to its advanced features, such as transactions, foreign keys, and multi-version concurrency control. Engineers, developers, and database administrators leverage PostgreSQL to store and manage data securely. The system is known for its reliability, robust architecture, and extensibility, making it suitable for complex operations. Companies choose PostgreSQL for projects requiring high performance and levels of concurrency. As PostgreSQL is open-source, it also benefits from continuous support and contributions from its user community.

The PostgreSQL File Read enumeration vulnerability allows attackers to read and list files within the PostgreSQL database. This vulnerability can be exploited to gain unauthorized access to sensitive information present in the database directories. Exploitation involves leveraging specific SQL injection techniques that enable unauthorized file access. Attackers with knowledge of the PostgreSQL system can serve these attacks to compromise system integrity. The extent of access depends on the database's configuration. This vulnerability underscores the significance of secure database configurations to protect against potential data breaches.

The vulnerability primarily involves SQL injection techniques aimed at the PostgreSQL database, targeting the ability to list directory contents using unauthorized queries. A common vulnerable endpoint is one that allows user input without proper sanitization in SQL queries. Attackers can manipulate queries to exploit directory reading capabilities by using functions like `pg_ls_dir()`. The vulnerable parameter often includes user credentials or database names that are improperly validated, leading to potential data exposure. Crafting specific payloads enables attackers to navigate and read sensitive files on the server.

Exploiting this vulnerability could lead to severe security concerns, including exposure of sensitive data, configuration details, and other critical files stored within the database system. Hackers might leverage this access to plan further attacks by gaining insights into database structures and credentials. Such actions can lead to compromised data integrity and unauthorized data disclosure, significantly affecting organizations' operations. Moreover, it poses a risk of the attackers manipulating files for malicious purposes. It emphasizes the need for organizations to adequately secure and monitor their PostgreSQL installations to prevent data breaches.

REFERENCES

• https://github.com/swisskyrepo/PayloadsAllTheThings/blob/master/SQL%20Injection/PostgreSQL%20Injection.md#postgresql-file-read