The mysql user parameter configuration script (userparameter_mysql.conf) in the agent in Zabbix before 2.0.18, 2.2.x before 2.2.13, and 3.0.x before 3.0.3, when used with a shell other than bash, allows context-dependent attackers to execute arbitrary code or SQL commands via the mysql.size parameter.

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4767-1 advisory.

    Fu Chuang discovered that Zabbix did not properly parse IPs. A remote attacker could possibly use this     issue to execute arbitrary code. This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 ESM and Ubuntu     18.04 ESM. (CVE-2020-11800)

    It was discovered that Zabbix incorrectly handled certain requests. A remote attacker could possibly use     this issue to execute arbitrary code. This issue only affected Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
    (CVE-2017-2824, CVE-2017-2825)

    It was discovered that Zabbix incorrectly handled certain XML files. A remote attacker could possibly use     this issue to read arbitrary files or potentially execute arbitrary code. This issue only affected Ubuntu     14.04 ESM. (CVE-2014-3005)

    It was discovered that Zabbix incorrectly handled certain inputs. A remote attacker could possibly use     this issue to execute arbitrary SQL commands. This issue only affected Ubuntu 14.04 ESM. (CVE-2016-10134,     CVE-2016-4338)

    It was discovered that Zabbix incorrectly handled the request parameter. A remote attacker could possibly     use this issue to redirect requests to external links. This issue only affected Ubuntu 14.04 ESM and     Ubuntu 18.04 ESM. (CVE-2016-10742)

    It was discovered that Zabbix incorrectly handled failed login attempts. A remote attacker could possibly     use this issue to enumerate users. (CVE-2019-15132)

    It was discovered that Zabbix did not properly validate input. A remote attacker could exploit this to     conduct cross-site scripting (XSS) attacks. This issue only affected Ubuntu 16.04 ESM, Ubuntu 18.04 ESM     and Ubuntu 20.04 ESM. (CVE-2020-15803)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote host is affected by the vulnerability described in GLSA-201612-42 (Zabbix: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Zabbix. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could possibly execute arbitrary code with the       privileges of the process, or cause a Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

According to its self-reported version number, the instance of Zabbix running on the remote host is affected by a command injection vulnerability due to improper sanitization of user-supplied input to the 'mysql.size' user parameter. An unauthenticated, remote attacker can exploit this to inject arbitrary shell commands.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
183641	Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM : Zabbix vulnerabilities (USN-4767-1)	Nessus	Ubuntu Local Security Checks	critical
95816	GLSA-201612-42 : Zabbix: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
91349	Zabbix < 2.0.18 / 2.2.13 / 3.0.3 'mysql.size' Parameter Command Injection	Nessus	CGI abuses	high

Detections

Analytics

CVE-2016-4338

high

Tenable Plugins

critical

high

high