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Date: Wed, 3 May 2017 10:52:20 -0500
From: Brandon Perry <bperry.volatile@...il.com>
To: Vulnerability Lab <research@...nerability-lab.com>
Cc: fulldisclosure@...lists.org
Subject: Re: [FD] Joomla com_tag v1.7.6 - (tag) SQL Injection Vulnerability


> On May 3, 2017, at 6:07 AM, Vulnerability Lab <research@...nerability-lab.com> wrote:
> 
> Document Title:
> ===============
> Joomla com_tag v1.7.6 - (tag) SQL Injection Vulnerability
> 
> 
> References (Source):
> ====================
> https://www.vulnerability-lab.com/get_content.php?id=2061
> 
> IEDB: http://iedb.ir/exploits-7454.html
> 
> 
> Release Date:
> =============
> 2017-05-02
> 
> 
> Vulnerability Laboratory ID (VL-ID):
> ====================================
> 2061
> 
> 
> Common Vulnerability Scoring System:
> ====================================
> 6.6
> 
> 
> Vulnerability Class:
> ====================
> SQL Injection
> 
> 
> Product & Service Introduction:
> ===============================
> Tag Meta allows to efficiently manage all site`s meta information. With Tag Meta, as example, it is possible to set the
> tag `title` or the meta tags (e.g. from the most common `description`, `keywords`, `robots`, as well as the recently
> `content rights` and `external reference`) or link `canonical` on any page, just specifying the URL or a part of it.
> This provides a swiss army knife to improve site positioning in SEO optimization. But Tag Meta also supports regular
> expressions in the matching rules and this allows to match a group of URLs with a single rule. In this way it is
> possible to manage metadata from a single control panel.
> 
> (Copy of the Homepage: https://extensions.joomla.org/extension/tag-meta/ )
> 
> 
> Abstract Advisory Information:
> ==============================
> An independent vulnerability laboratory partner team discovered a sql-injection vulnerability in the official Joomla CMS com_tag (meta) component.

How is this the *official* Joomla CMS com_tag when it is provided by a third party developer? Also, the component linked uses the name com_tagmeta in it’s HTTP requests, not com_tag. I am unable to reproduce the issue you are describing. This whole disclosure is confusing.

> 
> 
> Vulnerability Disclosure Timeline:
> ==================================
> 2017-05-02: Public Disclosure (Vulnerability Laboratory)
> 
> 
> Discovery Status:
> =================
> Published
> 
> 
> Affected Product(s):
> ====================
> SelfGet
> Product: Joomla com_tag (Meta) Components - (Community) 1.7.6
> 
> 
> Exploitation Technique:
> =======================
> Remote
> 
> 
> Severity Level:
> ===============
> High
> 
> 
> Technical Details & Description:
> ================================
> A remote sql-injection web vulnerability has been discovered in the official Joomla CMS com_tag (meta) component.
> The issue allows remote attackers to execute own malicious sql commands to compromise the web-application or dbms.
> 
> The sql-injection vulnerability is located in the `tag` parameter of the `com_tag` joomla web module. The request method
> to execute is GET and the attack vector is client-side. Remote attackers are able to inject own malicious sql commands
> via vulnerable `tag` parameter to compromise the web-application or dbms. The web vulnerability is a classic sql-injection
> in the joomla content management system `com_tag (meta)` component.
> 
> The security risk of the vulnerability is estimated as high with a common vulnerability scoring system count of 6.6.
> Exploitation of the sql-injection vulnerability requires no privilege web-application user account or user interaction.
> Successful exploitation of the web vulnerability results in web-application or database management system compromise.
> 
> Request Method(s):
> [+] GET
> 
> Vulnerable Components(s):
> [+] com_tag (joomla)
> 
> Vulnerable File(s):
> [+] index.php
> 
> Vulnerable Parameter(s):
> [+] tag (&tag)
> 
> 
> Proof of Concept (PoC):
> =======================
> The sql-injection web vulnerability can be exploited by remote attackers without privilege web-application user account
> or user interaction. For security demonstration or to reproduce the vulnerability follow the provided information and
> steps below to continue.
> 
> 
> Dork(s):
> inurl:index.php?option=com_tag
> 
> 
> PoC: Exploitation
> http://localhost:8080/[PATH]/index.php?option=com_tag&task=tag&tag=-`[SQL-Injection Vulnerability!]--
> 
> 
> Security Risk:
> ==============
> The security risk of the sql-injection web vulnerability in the joomla component is estimated as high (CVSS 6.6).
> 
> 
> Credits & Authors:
> ==================
> Amir - Iranian Exploit Database (www.iedb.ir) [http://www.vulnerability-lab.com/show.php?user=IEDB%20Team]
> 
> Thanks: C0dex,B3hz4d,Beni_vanda,Mr_time,Bl4ck M4n,black_security,Yasser,Ramin Assadian,Black_Nofuzi,SecureHost,
> 1TED,Mr_Kelever,Mr_keeper,Mahmod,Iedb,Khashayar,B3hz4d4,Shabgard,Cl09er, Be_lucky,Moslem Haghighian,Dr_Iman,8Bit,
> Javid,Esmiley_Amir,Mahdi_feizezade,Amin_Zohrabi,Shellshock3 and all my friends + all members of the Iedb.Ir Team.
> 
> 
> Disclaimer & Information:
> =========================
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