CVE-2020-7221

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

mysql_install_db in MariaDB 10.4.7 through 10.4.11 allows privilege escalation from the mysql user account to root because chown and chmod are performed unsafely, as demonstrated by a symlink attack on a chmod 04755 of auth_pam_tool_dir/auth_pam_tool. NOTE: this does not affect the Oracle MySQL product, which implements mysql_install_db differently.

mysql_install_db en MariaDB versiones 10.4.7 hasta 10.4.11, permite una escalada de privilegios de la cuenta de usuario mysql a root porque chown y chmod se realizan de forma no segura, como es demostrado por un ataque de tipo symlink en un chmod 04755 de auth_pam_tool_dir/auth_pam_tool. NOTA: esto no afecta el producto Oracle MySQL, que implementa mysql_install_db de manera diferente.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-17 CVE Reserved
2020-02-04 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-59: Improper Link Resolution Before File Access ('Link Following')

CAPEC

References (3)

URL	Tag	Source
https://github.com/MariaDB/server/commit/9d18b6246755472c8324bf3e20e234e08ac45618	Third Party Advisory

URL	Date	SRC
https://bugzilla.suse.com/show_bug.cgi?id=1160868	2024-08-04
https://seclists.org/oss-sec/2020/q1/55	2024-08-04

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mariadb Search vendor "Mariadb"		Mariadb Search vendor "Mariadb" for product "Mariadb"				>= 10.4.7 <= 10.4.11 Search vendor "Mariadb" for product "Mariadb" and version " >= 10.4.7 <= 10.4.11"		-		Affected