Improper Authorization in PostgreSQL - CVE-2020-1720
Published: February 13, 2020
Vulnerability identifier: #VU25333
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-1720
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: PostgreSQL Global Development Group
Affected software:
PostgreSQL
PostgreSQL
Detailed vulnerability description
The vulnerability allows a remote attacker to perform unauthorized modification of data in database.
The vulnerability exists due to the ALTER ... DEPENDS ON EXTENSION sub-commands do not perform authorization
checks, which can allow an unprivileged user to drop any function, procedure,
materialized view, index, or trigger under certain conditions. This attack is
possible if an administrator has installed an extension and an unprivileged
user can CREATE, or an extension owner either executes DROP EXTENSION
predictably or can be convinced to execute DROP EXTENSION.
How to mitigate CVE-2020-1720
Install updates from vendor's website.