ESB-2018.2569 - [Win][UNIX/Linux] Joomla!: Multiple vulnerabilities 2018-08-30

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2569
                           Joomla! Security News
                              30 August 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Joomla!
Publisher:         Joomla!
Operating System:  UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated      
                   Cross-site Scripting            -- Remote with User Interaction
                   Unauthorised Access             -- Remote/Unauthenticated      
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-15882 CVE-2018-15881 CVE-2018-15880

Original Bulletin: 
   https://developer.joomla.org/security-centre/743-20180801-core-hardening-the-inputfilter-for-phar-stubs.html
   https://developer.joomla.org/security-centre/744-20180802-core-stored-xss-vulnerability-in-the-frontend-profile.html
   https://developer.joomla.org/security-centre/745-20180803-core-acl-violation-in-custom-fields.html

Comment: This bulletin contains three (3) Joomla! security advisories.

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[20180801] - Core - Hardening the InputFilter for PHAR stubs

  o Project: Joomla!
  o SubProject: CMS
  o Impact: High
  o Severity: Low
  o Versions: 1.5.0 through 3.8.11
  o Exploit type: Malicious file upload
  o Reported Date: 2018-August-23
  o Fixed Date: 2018-August-28
  o CVE Number: CVE-2018-15882

Description

Inadequate checks in the InputFilter class could allow specifically
prepared PHAR files to pass the upload filter.

Affected Installs

Joomla! CMS versions 1.5.0 through 3.8.11

Solution

Upgrade to version 3.8.12

Contact

The JSST at the Joomla! Security Centre.

Reported By: Davide Tampellini

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[20180802] - Core - Stored XSS vulnerability in the frontend profile

  o Project: Joomla!
  o SubProject: CMS
  o Impact: Low
  o Severity: Low
  o Versions: 1.5.0 through 3.8.11
  o Exploit type: XSS
  o Reported Date: 2018-July-10
  o Fixed Date: 2018-August-28
  o CVE Number: CVE-2018-15880

Description

Inadequate output filtering on the user profile page could lead to a stored XSS
attack.

Affected Installs

Joomla! CMS versions 1.5.0 through 3.8.11

Solution

Upgrade to version 3.8.12

Contact

The JSST at the Joomla! Security Centre.

Reported By: Roland Dalmulder, Perfect Web Team

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[20180803] - Core - ACL Violation in custom fields

  o Project: Joomla!
  o SubProject: CMS
  o Impact: Low
  o Severity: Low
  o Versions: 3.7.0 through 3.8.11
  o Exploit type: ACL Violation
  o Reported Date: 2018-July-10
  o Fixed Date: 2018-August-28
  o CVE Number: CVE-2018-15881

Description

Inadequate checks regarding disabled fields can lead to an ACL violation.

Affected Installs

Joomla! CMS versions 3.7.0 through 3.8.11

Solution

Upgrade to version 3.8.12

Contact

The JSST at the Joomla! Security Centre.

Reported By: Elisa Foltyn, COOLCAT CREATIONS

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