SB2020031409 - Multiple vulnerabilities in Joomla!

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Main Vulnerability Database SB2020031409

SB2020031409 - Multiple vulnerabilities in Joomla!

Published: March 14, 2020

Security Bulletin ID SB2020031409
Severity
Medium
Patch available
YES
Number of vulnerabilities 6
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 33% Low 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 6 secuirty vulnerabilities.


1) Cross-site request forgery (CVE-ID: CVE-2020-10241)

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin in com_templates when processing image actions. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.


2) Cross-site scripting (CVE-ID: CVE-2020-10242)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in CSS selectors in the Protostar and Beez3 JavaScript. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


3) Improper access control (CVE-ID: CVE-2020-10238)

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in com_templates. A remote attacker can bypass implemented security restrictions and gain unauthorized access to the application.


4) Improper access control (CVE-ID: CVE-2020-10239)

The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in com_fields SQL field. A remote authenticated user can bypass implemented security restrictions and gain unauthorized access to the application.


5) Resource management error (CVE-ID: CVE-2020-10240)

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to possible identifier collision in com_users component. Joomla! does not perform length checks in the user table can lead to the creation of users with duplicate usernames and/or email addresses.


6) SQL injection (CVE-ID: CVE-2020-10243)

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

The vulnerability exists due to insufficient sanitization of user-supplied data in the "Featured Articles" frontend menutype. A remote authenticated user 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