• Avviso sicurezza: [20190502] - Core - By-passing protection of Phar Stream Wrapper Interceptor
    • Project: Joomla!
    • SubProject: CMS
    • Impact: Low
    • Severity: Low
    • Versions: 3.9.3 through 3.9.5
    • Exploit type: Object Injection
    • Reported Date: 2019-March-27
    • Fixed Date: 2019-May-07

    Description

    In Joomla 3.9.3, the vulnerability of insecure deserialization when executing Phar archives was addressed by removing the known attack vector in the Joomla core. In order to intercept file invocations like file_exists or stat on compromised Phar archives the base name has to be determined and checked before allowing to be handled by PHP Phar stream handling. The used implementation however is vulnerable to path traversal leading to scenarios where the Phar archive to be assessed is not the actual (compromised) file.

    Affected Installs

    Joomla! CMS versions 3.9.3 through 3.9.5

    Solution

    Upgrade to version 3.9.6

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By: Daniel le Gall, Fix coordinated by Oliver Hader from TYPO3

  • Avviso sicurezza: [20190501] - Core - XSS in com_users ACL debug views
    • Project: Joomla!
    • SubProject: CMS
    • Impact: Moderate
    • Severity: Low
    • Versions: 1.7.0 through 3.9.5
    • Exploit type: XSS
    • Reported Date: 2019-April-29
    • Fixed Date: 2019-May-07
    • CVE Number: CVE-2019-11809

    Description

    The debug views of com_users do not properly escape user supplied data, which leads to a potential XSS attack vector.

    Affected Installs

    Joomla! CMS versions 1.7.0 through 3.9.5

    Solution

    Upgrade to version 3.9.6

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By: Jose Antonio Rodriguez Garcia and Phil Keeble (MWR InfoSecurity)

  • Avviso sicurezza: [20190403] - Core - Object.prototype pollution in JQuery $.extend
    • Project: Joomla!
    • SubProject: CMS
    • Impact: Low
    • Severity: Moderate
    • Versions: 3.0.0 through 3.9.4
    • Exploit type: XSS
    • Reported Date: 2019-March-25
    • Fixed Date: 2019-April-09
    • CVE Number: CVE-2019-11358

    Description

    The $.extend method of JQuery is vulnerable to Object.prototype pollution attacks.

    Affected Installs

    Joomla! CMS versions 3.0.0 through 3.9.4

    Solution

    Upgrade to version 3.9.5

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By: Michał Gołębiowski-Owczarek, David Jardin (JSST)

  • Avviso sicurezza: [20190402] - Core - Helpsites refresh endpoint callable for unauthenticated users
    • Project: Joomla!
    • SubProject: CMS
    • Impact: Low
    • Severity: High
    • Versions: 3.2.0 through 3.9.4
    • Exploit type: ACL Violation
    • Reported Date: 2019-March-13
    • Fixed Date: 2019-April-08
    • CVE Number: CVE-2019-10946

    Description

    The "refresh list of helpsites" endpoint of com_users lacks access checks, allowing calls from unauthenticated users.

    Affected Installs

    Joomla! CMS versions 3.2.0 through 3.9.4

    Solution

    Upgrade to version 3.9.5

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By: Benjamin Trenkle (JSST)

  • Avviso sicurezza: [20190401] - Core - Directory Traversal in com_media
    • Project: Joomla!
    • SubProject: CMS
    • Impact: Moderate
    • Severity: Low
    • Versions: 1.5.0 through 3.9.4
    • Exploit type: Directory Traversal
    • Reported Date: 2019-March-13
    • Fixed Date: 2019-April-08
    • CVE Number: CVE-2019-10945

    Description

    The Media Manager component does not properly sanitise the folder parameter, allowing attackers to act outside the media manager root directory.

    Affected Installs

    Joomla! CMS versions 1.5.0 through 3.9.4

    Solution

    Upgrade to version 3.9.5

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By: Haboob Research Team

  • Avviso sicurezza: [20190304] - Core - Missing ACL check in sample data plugins
    • Project: Joomla!
    • SubProject: CMS
    • Impact: Moderate
    • Severity: High
    • Versions: 3.8.0 through 3.9.3
    • Exploit type: XSS
    • Reported Date: 2019-February-28
    • Fixed Date: 2019-March-12
    • CVE Number: CVE-2019-9713

    Description

    The sample data plugins lack ACL checks, allowing unauthorized access.

    Affected Installs

    Joomla! CMS versions 3.8.0 through 3.9.3

    Solution

    Upgrade to version 3.9.4

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By: Sven Hurt, Benjamin Trenkle

  • Avviso sicurezza: [20190303] - Core - XSS in media form field
    • Project: Joomla!
    • SubProject: CMS
    • Impact: Low
    • Severity: Low
    • Versions: 3.0.0 through 3.9.3
    • Exploit type: XSS
    • Reported Date: 2019-February-25
    • Fixed Date: 2019-March-12
    • CVE Number: CVE-2019-9714

    Description

    The media form field lacks escaping, leading to a XSS vulnerability.

    Affected Installs

    Joomla! CMS versions 3.2.0 through 3.9.3

    Solution

    Upgrade to version 3.9.4

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By: Fouad Maakor

  • Avviso sicurezza: [20190302] - Core - XSS in item_title layout
    • Project: Joomla!
    • SubProject: CMS
    • Impact: Low
    • Severity: Low
    • Versions: 3.0.0 through 3.9.3
    • Exploit type: XSS
    • Reported Date: 2019-February-25
    • Fixed Date: 2019-March-12
    • CVE Number: CVE-2019-9711

    Description

    The item_title layout in edit views lacks escaping, leading to a XSS vulnerability.

    Affected Installs

    Joomla! CMS versions 3.2.0 through 3.9.3

    Solution

    Upgrade to version 3.9.4

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By: Fouad Maakor

  • Avviso sicurezza: [20190301] - Core - XSS in com_config JSON handler
    • Project: Joomla!
    • SubProject: CMS
    • Impact: Low
    • Severity: Low
    • Versions: 3.2.0 through 3.9.3
    • Exploit type: XSS
    • Reported Date: 2019-March-04
    • Fixed Date: 2019-March-12
    • CVE Number: CVE-2019-9712

    Description

    The JSON handler in com_config lacks input validation, leading to XSS vulnerability.

    Affected Installs

    Joomla! CMS versions 3.2.0 through 3.9.3

    Solution

    Upgrade to version 3.9.4

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By: Mario Korth, Hackmanit

  • Avviso sicurezza: [20190206] - Core - Implement the TYPO3 PHAR stream wrapper
    • Project: Joomla!
    • SubProject: CMS
    • Impact: Low
    • Severity: Low
    • Versions: 2.5.0 through 3.9.2
    • Exploit type: Object Injection
    • Reported Date: 2019-January-18
    • Fixed Date: 2019-February-12
    • CVE Number: CVE-2019-7743

    Description

    The phar:// stream wrapper can be used for objection injection attacks. We now disallow usage of the phar:// handler for non .phar-files within the CMS globally by implementing the TYPO3 PHAR stream wrapper.

    Affected Installs

    Joomla! CMS versions 2.5.0 through 3.9.2

    Solution

    Upgrade to version 3.9.3

    Contact

    The JSST at the Joomla! Security Centre.

    Reported By: David Jardin (JSST)

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