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AUSCERT External Security Bulletin Redistribution
ESB-2020.4198
Joomla! CMS November security updates
26 November 2020
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AusCERT Security Bulletin Summary
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Product: Joomla! Core
Publisher: Joomla project
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Cross-site Request Forgery -- Unknown/Unspecified
Cross-site Scripting -- Unknown/Unspecified
Provide Misleading Information -- Unknown/Unspecified
Access Confidential Data -- Unknown/Unspecified
Unauthorised Access -- Unknown/Unspecified
Reduced Security -- Unknown/Unspecified
Resolution: Patch/Upgrade
Original Bulletin:
https://developer.joomla.org/security-centre/
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Security Announcements
[20201107] - Core - Write ACL violation in multiple core views
* Project: Joomla!
* SubProject: CMS
* Impact: High
* Severity: Low
* Versions:1.7.0 - 3.9.22
* Exploit type: ACL Violation
* Reported Date: 2018-11-04
* Fixed Date: 2020-11-24
* CVE Number: CVE-2020-xxx (TBA)
Description
Lack of input validation while handling ACL rulesets can cause write ACL
violations.
Affected Installs
Joomla! CMS versions 1.7.0 - 3.9.22
Solution
Upgrade to version 3.9.23
Contact
The JSST at the Joomla! Security Centre.
Reported By: Elisa Foltyn, Benjamin Trenkle
[20201106] - Core - CSRF in com_privacy emailexport feature
* Project: Joomla!
* SubProject: CMS
* Impact: Low
* Severity: Low
* Versions: 3.9.0-3.9.22
* Exploit type: CSRF
* Reported Date: 2020-10-08
* Fixed Date: 2020-11-24
* CVE Number: CVE-2020-xxx (TBA)
Description
A missing token check in the emailexport feature of com_privacy causes a CSRF
vulnerability.
Affected Installs
Joomla! CMS versions 3.9.0 - 3.9.22
Solution
Upgrade to version 3.9.23
Contact
The JSST at the Joomla! Security Centre.
Reported By: Lee Thao from Viettel Cyber Security
[20201105] - Core - User Enumeration in backend login
* Project: Joomla!
* SubProject: CMS
* Impact: Low
* Severity: Low
* Versions: 3.9.0-3.9.22
* Exploit type: User Enumeration
* Reported Date: 2020-08-15
* Fixed Date: 2020-11-24
* CVE Number: CVE-2020-xxx (TBA)
Description
Improper handling of the username leads to a user enumeration attack vector in
the backend login page.
Affected Installs
Joomla! CMS versions 3.9.0 - 3.9.22
Solution
Upgrade to version 3.9.23
Contact
The JSST at the Joomla! Security Centre.
Reported By: Phil Taylor
[20201104] - Core - SQL injection in com_users list view
* Project: Joomla!
* SubProject: CMS
* Impact: High
* Severity: Low
* Versions: 3.0.0-3.9.22
* Exploit type: SQL Injection
* Reported Date: 2020-10-13
* Fixed Date: 2020-11-24
* CVE Number: CVE-2020-xxx (TBA)
Description
Improper filter blacklist configuration leads to a SQL injection vulnerability
in the backend user list.
Affected Installs
Joomla! CMS versions 3.0.0 - 3.9.22
Solution
Upgrade to version 3.9.23
Contact
The JSST at the Joomla! Security Centre.
Reported By: Lucas Universes
[20201103] - Core - Path traversal in mod_random_image
* Project: Joomla!
* SubProject: CMS
* Impact: Moderate
* Severity: Low
* Versions: 2.5.0-3.9.22
* Exploit type: Path traversal
* Reported Date: 2020-10-06
* Fixed Date: 2020-11-24
* CVE Number: CVE-2020-xxx (TBA)
Description
The folder parameter of mod_random_image lacked input validation, leading to a
path traversal vulnerability.
Affected Installs
Joomla! CMS versions 2.5.0 - 3.9.22
Solution
Upgrade to version 3.9.23
Contact
The JSST at the Joomla! Security Centre.
Reported By: Lee Thao from Viettel Cyber Security, Phil Taylor
[20201102] - Core - Disclosure of secrets in Global Configuration page
* Project: Joomla!
* SubProject: CMS
* Impact: Moderate
* Severity: Low
* Versions: 2.5.0-3.9.22
* Exploit type: Information Disclosure
* Reported Date: 2020-09-23
* Fixed Date: 2020-11-24
* CVE Number: CVE-2020-xxx (TBA)
Description
The globlal configuration page does not remove secrets from the HTML output,
disclosing the current values.
Affected Installs
Joomla! CMS versions 2.5.0 - 3.9.22
Solution
Upgrade to version 3.9.23
Contact
The JSST at the Joomla! Security Centre.
Reported By: Corch
[20201101] - Core - com_finder ignores access levels on autosuggest
* Project: Joomla!
* SubProject: CMS
* Impact: Moderate
* Severity: Low
* Versions: 2.5.0-3.9.22
* Exploit type: Information Disclosure
* Reported Date: 2020-06-21
* Fixed Date: 2020-11-24
* CVE Number: CVE-2020-xxx (TBA)
Description
The autosuggestion feature of com_finder did not respect the access level of
the corresponding terms.
Affected Installs
Joomla! CMS versions 2.5.0 - 3.9.22
Solution
Upgrade to version 3.9.23
Contact
The JSST at the Joomla! Security Centre.
Reported By: Phil Taylor
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