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Security Announcements

This feed provides announcements of resolved security issues in Joomla! software releases.

For more information about the Joomla! Security Strike Team (JSST) and its processes, please review our Security article.

To report potential security issues, please follow the guidelines in the above referenced article. Please note that we are only able to provide support for the Joomla! CMS, Joomla! Framework, and *.joomla.org network of websites.

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[20170501] - Core - SQL Injection

  • Project: Joomla!
  • SubProject: CMS
  • Severity: High
  • Versions: 3.7.0
  • Exploit type: SQL Injection
  • Reported Date: 2017-May-11
  • Fixed Date: 2017-May-17
  • CVE Number: CVE-2017-8917

Description

Inadequate filtering of request data leads to a SQL Injection vulnerability.

Affected Installs

Joomla! CMS versions 3.7.0

Solution

Upgrade to version 3.7.1

Contact

The JSST at the Joomla! Security Centre.

Reported By: Marc-Alexandre Montpas / sucuri.net

[20170408] - Core - Information Disclosure

  • Project: Joomla!
  • SubProject: CMS
  • Severity: Low
  • Versions: 3.4.0 through 3.6.5
  • Exploit type: Information Disclosure
  • Reported Date: 2016-Feb-06
  • Fixed Date: 2017-April-25
  • CVE Number: CVE-2017-8057

Description

Multiple files caused full path disclosures on systems with enabled error reporting.

Affected Installs

Joomla! CMS versions 3.4.0 through 3.6.5

Solution

Upgrade to version 3.7.0

Contact

The JSST at the Joomla! Security Centre.

Reported By: Sim of tencent security

[20170407] - Core - ACL Violations

  • Project: Joomla!
  • SubProject: CMS
  • Severity: Low
  • Versions: 3.2.0 through 3.6.5
  • Exploit type: ACL Violation
  • Reported Date: 2017-March-01
  • Fixed Date: 2017-April-25
  • CVE Number: CVE-2017-7989

Description

Inadequate mime type checks allowed low-privilege users to upload swf files even if they were explicitly forbidden.

Affected Installs

Joomla! CMS versions 3.2.0 through 3.6.5

Solution

Upgrade to version 3.7.0

Contact

The JSST at the Joomla! Security Centre.

Reported By: Abdullah Hussam

[20170406] - Core - ACL Violations

  • Project: Joomla!
  • SubProject: CMS
  • Severity: Low
  • Versions: 1.6.0 through 3.6.5
  • Exploit type: ACL Violation
  • Reported Date: 2016-April-29
  • Fixed Date: 2017-April-25
  • CVE Number: CVE-2017-7988

Description

Inadequate filtering of form contents lead allow to overwrite the author of an article.

Affected Installs

Joomla! CMS versions 1.6.0 through 3.6.5

Solution

Upgrade to version 3.7.0

Contact

The JSST at the Joomla! Security Centre.

Reported By: T-Systems Multimedia Solutions

[20170405] - Core - XSS Vulnerability

  • Project: Joomla!
  • SubProject: CMS
  • Severity: Low
  • Versions: 3.2.0 through 3.6.5
  • Exploit type: XSS
  • Reported Date: 2016-February-28
  • Fixed Date: 2017-April-25
  • CVE Number: CVE-2017-7987

Description

Inadequate escaping of file and folder names leads to XSS vulnerabilities in the template manager component.

Affected Installs

Joomla! CMS versions 3.2.0 through 3.6.5

Solution

Upgrade to version 3.7.0

Contact

The JSST at the Joomla! Security Centre.

Reported By: David Jardin

[20170404] - Core - XSS Vulnerability

  • Project: Joomla!
  • SubProject: CMS
  • Severity: Low
  • Versions: 1.5.0 through 3.6.5
  • Exploit type: XSS
  • Reported Date: 2017-February-22
  • Fixed Date: 2017-April-25
  • CVE Number: CVE-2017-7986

Description

Inadequate filtering of specific HTML attributes leads to XSS vulnerabilities in various components.

Affected Installs

Joomla! CMS versions 1.5.0 through 3.6.5

Solution

Upgrade to version 3.7.0

Contact

The JSST at the Joomla! Security Centre.

Reported By: Fortinet's FortiGuard Labs

[20170403] - Core - XSS Vulnerability

  • Project: Joomla!
  • SubProject: CMS
  • Severity: Low
  • Versions: 1.5.0 through 3.6.5
  • Exploit type: XSS
  • Reported Date: 2017-March-21
  • Fixed Date: 2017-April-25
  • CVE Number: CVE-2017-7985

Description

Inadequate filtering of multibyte characters leads to XSS vulnerabilities in various components.

Affected Installs

Joomla! CMS versions 1.5.0 through 3.6.5

Solution

Upgrade to version 3.7.0

Contact

The JSST at the Joomla! Security Centre.

Reported By: Fortinet's FortiGuard Labs

[20170402] - Core - XSS Vulnerability

  • Project: Joomla!
  • SubProject: CMS
  • Severity: Low
  • Versions: 3.2.0 through 3.6.5
  • Exploit type: XSS
  • Reported Date: 2016-December-23
  • Fixed Date: 2017-April-25
  • CVE Number: CVE-2017-7984

Description

Inadequate filtering leads to XSS in the template manager component.

Affected Installs

Joomla! CMS versions 3.2.0 through 3.6.5

Solution

Upgrade to version 3.7.0

Contact

The JSST at the Joomla! Security Centre.

Reported By: Chen Ruiqi, Codesafe team

[20170401] - Core - Information Disclosure

  • Project: Joomla!
  • SubProject: CMS
  • Severity: Low
  • Versions: 1.5.0 through 3.6.5
  • Exploit type: Information Disclosure
  • Reported Date: 2017-Jan-02
  • Fixed Date: 2017-April-25
  • CVE Number: CVE-2017-7983

Description

Mail sent using the JMail API leaked the used PHPMailer version in the mail headers.

Affected Installs

Joomla! CMS versions 1.5.0 through 3.6.5

Solution

Upgrade to version 3.7.0

Contact

The JSST at the Joomla! Security Centre.

Reported By: Conor McKnight

[20161205] - PHPMailer Security Advisory

  • Project: Joomla!
  • Severity: High
  • Versions: 1.5.0 through 3.6.5
  • Exploit type: Remote Code Execution in third-party PHPMailer library
  • CVE Numbers: CVE-2016-10033 and CVE-2016-10045
Note: This advisory was revised to reflect the addition of CVE-2016-10045 and the PHPMailer 5.2.20 release

Description

All versions of the third-party PHPMailer library distributed with Joomla! versions up to 3.6.5 are vulnerable to a remote code execution vulnerability. This is patched in PHPMailer 5.2.20 which will be included with Joomla! 3.7. After analysis, the JSST has determined that through correct use of the JMail class, there are additional validations in place which make executing this vulnerability impractical within the Joomla environment. As well, the vulnerability requires being able to pass user input to a message's "from" address; all places in the core Joomla API which send mail use the sender address set in the global configuration and does not allow for user input to be set elsewhere. However, extensions which bundle a separate version of PHPMailer or do not use the Joomla API to send email may be vulnerable to this issue.

Generally, the Joomla project does not issue advisories regarding third party libraries, however given the severity of this issue we felt it important to advise our users that we are aware of this issue and we have determined that the additional validations in our API prevent triggering this vulnerability.

Affected Installs

Joomla! CMS versions 1.5.0 through 3.6.5

Solution

No action required for Joomla users, the updated library will be included in the next scheduled release and additional mechanisms exist in Joomla core to prevent triggering the vulnerability. Users of the PHPMailer library separate from Joomla are advised to upgrade to 5.2.20 or newer ASAP.

Additional Resources

  • https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html
  • https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10045-Vuln-Patch-Bypass.html
  • https://github.com/PHPMailer/PHPMailer/blob/master/SECURITY.md
  • https://github.com/PHPMailer/PHPMailer/wiki/About-the-CVE-2016-10033-and-CVE-2016-10045-vulnerabilities

Contact

The JSST at the Joomla! Security Centre.

Reported By: Dawid Golunski

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