#VU50656 Security restrictions bypass in PostgreSQL - CVE-2021-20229
Published: February 11, 2021
Vulnerability identifier: #VU50656
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-20229
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
PostgreSQL
PostgreSQL
Software vendor:
PostgreSQL Global Development Group
PostgreSQL Global Development Group
Description
The vulnerability allows a remote user to gain access to sensitive information.
The vulnerability exists due to application does not properly impose security restrictions. A user having a SELECT privilege on an individual column can craft a special
query that returns all columns of the table. Additionally, a stored view that uses column-level privileges will have
incomplete column-usage bitmaps. In installations that depend on column-level
permissions for security, it is recommended to execute CREATE OR REPLACE on
all user-defined views to force them to be re-parsed.
Remediation
Install updates from vendor's website.