Security restrictions bypass - CVE-2018-2786

Vulnerability identifier: #VU12028

CSH Severity: Low

CVSS v4: 7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-2786

CWE-ID: CWE-264

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote authenticated attacker to write arbitrary files and cause DoS condition on the target system.

The weakness exists in the MySQL Server component of Oracle MySQL due to improper security restrictions. A remote attacker can update, insert or delete some of MySQL Server accessible data and cause the service to crash.

Amazon Linux AMI
Ubuntu
Fedora
Tivoli Network Manager IP Edition
openSUSE Leap
mariadb (Alpine package)
mysql-server-5.5 (Ubuntu package)
mysql-server-5.7 (Ubuntu package)
community-mysql
mariadb

Install update from vendor's website.

mariadb (Alpine package) - update to 10.2.15-r0
mysql-server-5.5 (Ubuntu package) - update to 5.5.60-0ubuntu0.14.04.1
mysql-server-5.7 (Ubuntu package) - addressed in versions 5.7.22-0ubuntu0.16.04.1, 5.7.22-0ubuntu0.17.10.1, 5.7.22-0ubuntu18.04.1
community-mysql - addressed in versions 5.7.22-1.fc26, 5.7.22-1.fc27, 5.7.22-1.fc28
mariadb - addressed in versions 10.2.15-2.fc27, 10.2.15-2.fc28

• http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html

• Multiple vulnerabilities in Oracle MySQL
• Amazon Linux AMI update for mysql57
• OpenSUSE Linux update for mariadb
• Security restrictions bypass in mariadb (Alpine package)
• Multiple vulnerabilities in IBM Tivoli Network Manager IP Edition
• Fedora 28 update for community-mysql
• Fedora 27 update for community-mysql
• Fedora 26 update for community-mysql
• Fedora 28 update for mariadb
• Fedora 27 update for mariadb
• Ubuntu update for mysql-5.5, mysql-5.7
• Ubuntu update for mysql-5.7