Azure Database for PostgreSQL Flexible Server Privilege Escalation and Remote Code Execution

[Guest MSRC]

MSRC was informed by Wiz, a cloud security vendor, under Coordinated Vulnerability Disclosure (CVD) of an issue with the Azure Database for PostgreSQL Flexible Server that could result in unauthorized cross-account database access in a region. By exploiting an elevated permissions bug in the Flexible Server authentication process for a replication user, a malicious user could leverage an improperly anchored regular expression to bypass authentication to gain access to other customers’ databases.

 

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