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GHSA-vrjr-p3xp-xx2x
No affected components available
Summary
Exposure of database (ie postgreSQL) server's credential when connection to DB fails.
Details
Exposed database credentials upon misconfig/DoS @ permalink: https://github.com/thorsten/phpMyFAQ/blob/main/phpmyfaq/src/phpMyFAQ/Setup/Installer.php#L694
PoC
When postgreSQL server is unreachable, an error would be thrown exposing the credentials of the database. For instance, when "http://<phpmyfaq-instance>:8080/setup/index.php" is hit when the database instance/server is down, then credentials are exposed, for instance:
( ! ) Warning: pg_connect(): Unable to connect to PostgreSQL server: connection to server at "127.0.0.1", port 5432 failed: Connection refused Is the server running on that host and accepting TCP/IP connections? in /var/www/html/src/phpMyFAQ/Database/Pgsql.php on line 78
Call Stack
# Time Memory Function Location
1 0.0404 453880 {main}( ) .../index.php:0
2 1.1341 610016 phpMyFAQ\Setup\Installer->startInstall( $setup = ??? ) .../index.php:471
3 1.2113 611544 phpMyFAQ\Database\Pgsql->connect( $host = '127.0.0.1', $user = 'cvecve', $password = '<redacted>', $database = 'cvecve', $port = 5432 ) .../Installer.php:694
4 1.2113 611864 pg_connect( $connection_string = 'host=127.0.0.1 port=5432 dbname=cvecve user=cvecve password=<redacted>' ) .../Pgsql.php:78
( ! ) Fatal error: Uncaught TypeError: Cannot assign false to property phpMyFAQ\Database\Pgsql::$conn of type ?PgSql\Connection in /var/www/html/src/phpMyFAQ/Database/Pgsql.php on line 78
( ! ) TypeError: Cannot assign false to property phpMyFAQ\Database\Pgsql::$conn of type ?PgSql\Connection in /var/www/html/src/phpMyFAQ/Database/Pgsql.php on line 78
Call Stack
# Time Memory Function Location
1 0.0404 453880 {main}( ) .../index.php:0
2 1.1341 610016 phpMyFAQ\Setup\Installer->startInstall( $setup = ??? ) .../index.php:471
3 1.2113 611544 phpMyFAQ\Database\Pgsql->connect( $host = '127.0.0.1', $user = 'cvecve', $password = '<redacted>', $database = 'cvecve', $port = 5432 ) .../Installer.php:694
A way to force this would be to perform a denial of service on the database instance/server. When the db connection is refused, the credentials would show. The remote attacker can then use that to gain full control on the database.
Impact
This vulnerability exposes the credentials of the database and grants a remote attacker full control over the database.
First notified Snyk on 16 Jan 2024.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a low impact on the integrity of the data. There is a low impact on the availability of the system.
Exploitation activity has been observed. Apply available patches or mitigations urgently.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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