CVE-2020-25694: High severity ibm analytics content hub vulnerability

A flaw was found in postgresql. If a client application that creates additional database connections only reuses the basic connection parameters while dropping security-relevant parameters, an opportunity for a man-in-the-middle attack, or the ability to observe clear-text transmissions, could exist. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Many PostgreSQL-provided client applications have options that create additional database connections. Some of those applications reuse only the basic connection parameters (e.g. host, user, port), dropping others. If this drops a security-relevant parameter (e.g. channelbinding, sslmode, requirepeer, gssencmode), the attacker has an otherwise-unavailable opportunity to complete a man-in-the-middle attack or observe cleartext transmission. Affected applications are clusterdb, pgdump, pgrestore, psql, reindexdb, and vacuumdb. The vulnerability arises only if one invokes an affected client application with a connection string containing a security-relevant parameter.

Supported, Vulnerable Versions: 9.5 - 13.

— Red Hat

PostgreSQL could allow a remote attacker to obtain sensitive information, caused by the use of clear-text transmissions when reusing the basic connection parameters while dropping security-relevant parameters. By using man-in-the-middle attack techniques, an attacker could exploit this vulnerability to obtain sensitive information, and use this information to launch further attacks against the affected system.

— IBM