CVE-2021-31671 Explained : Impact and Mitigation

pgsync before 0.6.7 is affected by Information Disclosure of sensitive information. The mishandling of syncing the schema with certain options can lead to the loss of connection parameters like sslmode, resulting in SSL not being used.

Understanding CVE-2021-31671

This CVE-2021-31671 vulnerability pertains to information disclosure in pgsync before version 0.6.7.

What is CVE-2021-31671?

CVE-2021-31671 is an information disclosure vulnerability in pgsync before version 0.6.7, where syncing the schema with specific options can lead to the mishandling of connection parameters.

The Impact of CVE-2021-31671

The vulnerability can result in the loss of sensitive connection parameters, such as sslmode, which may compromise the security of data transmission.

Technical Details of CVE-2021-31671

This section provides technical details about the vulnerability.

Vulnerability Description

pgsync before 0.6.7 is affected by Information Disclosure of sensitive information due to mishandling of schema syncing with specific options.

Affected Systems and Versions

The vulnerability affects pgsync versions before 0.6.7.

Exploitation Mechanism

Exploitation of this vulnerability involves syncing the schema with the --schema-first and --schema-only options, leading to the loss of connection parameters.

Mitigation and Prevention

To address CVE-2021-31671, follow these security measures.

Immediate Steps to Take

Users should update pgsync to version 0.6.7 or later to mitigate the risk of information disclosure.

Long-Term Security Practices

Implement secure coding practices and regularly update software to prevent similar vulnerabilities.

Patching and Updates

Stay informed about security updates and apply patches promptly to protect systems from potential exploits.