OS Command Injection in mariadb (Alpine package)

1) OS Command Injection

EUVDB-ID: #VU49122

Risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-15180

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation within the wsrep_sst_method method in the mysql-wsrep component of mariadb. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary OS commands on galera cluster node.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

mariadb (Alpine package): 10.1.17-r0 - 10.5.5-r0

mariadb (Alpine package):

CPE2.3

• cpe:2.3:o:alpine:mariadb_alpine_package:10.1.17-r0:*:*:*:*:alpine_linux:*:3.2
• cpe:2.3:o:alpine:mariadb_alpine_package:10.1.18-r0:*:*:*:*:alpine_linux:*:3.2
• cpe:2.3:o:alpine:mariadb_alpine_package:10.1.18-r1:*:*:*:*:alpine_linux:*:3.4
• cpe:2.3:o:alpine:mariadb_alpine_package::*:*:*:*:alpine_linux:*:*

External links

https://git.alpinelinux.org/aports/commit/?id=790ec215d95ed1405889c142721bc6284c19f97c

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.