SB2019121803 - Multiple vulnerabilities in Joomla!

Description

This security bulletin contains information about 2 vulnerabilities.

1) Information exposure through externally-generated error message (CVE-ID: CVE-2019-19845)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output when displaying error messages. A remote attacker can gain unauthorized access to sensitive information on the system, such full installation path of the web application.

2) SQL injection (CVE-ID: CVE-2019-19846)

CWE-ID: CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.

Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.

Remediation

Install update from vendor's website.

References

• https://developer.joomla.org/security-centre/796-20191201-core-path-disclosure-in-framework-files.html
• https://developer.joomla.org/security-centre/797-20191202-core-various-sql-injections-through-configuration-parameters.html