High severity · published Feb 4, 2020
CVE-2020-7221
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…
7.8
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
Mariadb · Mariadb
10.4.7 through 10.4.11 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-7221
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-7221
Exploit
https://bugzilla.suse.com/show_bug.cgi?id=1160868
Third Party Advisory
https://github.com/MariaDB/server/commit/9d18b6246755472c8324bf3e20e234e08ac45618
Exploit
https://seclists.org/oss-sec/2020/q1/55
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