Command Injection in MariaDB
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-27928 |
| CWE-ID | CWE-77 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
MariaDB Server applications / Database software |
| Vendor | MariaDB Foundation |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Command Injection
EUVDB-ID: #VU51645
Risk: High
CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2021-27928
CWE-ID:
CWE-77 - Command injection
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to execute arbitrary commands on the target system.
The vulnerability exists due to improper input validation in the "wsrep_provider" and "wsrep_notify_cmd" parameters. A remote attacker can pass specially crafted data to the application and execute arbitrary commands on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsMariaDB: 10.0.0 - 10.5.8
External linkshttp://jira.mariadb.org/browse/MDEV-25179
http://lists.debian.org/debian-lts-announce/2021/03/msg00028.html
http://mariadb.com/kb/en/mariadb-10237-release-notes/
http://mariadb.com/kb/en/mariadb-10328-release-notes/
http://mariadb.com/kb/en/mariadb-10418-release-notes/
http://mariadb.com/kb/en/mariadb-1059-release-notes/
http://mariadb.com/kb/en/security/
http://github.com/LalieA/CVE-2021-27928
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
