Advisory ID: HTB23263
Product: BlackCat CMS
Vendor: Black Cat Development
Vulnerable Version(s): 1.1.1 and probably prior
Tested Version: 1.1.1
Advisory Publication: June 10, 2015 [without technical details]
Vendor Notification: June 10, 2015
Vendor Patch: June 24, 2015
Public Disclosure: July 1, 2015
Vulnerability Type: Path Traversal [CWE-22]
CVE Reference: CVE-2015-5079
Risk Level: High
CVSSv2 Base Score: 7.8 (AV:N/AC:L/Au:N/C:С/I:N/A:N)
Solution Status: Fixed by Vendor
Discovered and Provided: High-Tech Bridge Security Research Lab (
https://www.htbridge.com/advisory/ )
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Advisory Details:
High-Tech Bridge Security Research Lab discovered vulnerability in BlackCat
CMS, which can be exploited to view contents of arbitrary files on the local
system. An attacker might be able to obtain potentially sensitive or system
information, and even compromise the vulnerable system.
The vulnerability exists due to improper validation of file path in "dl" HTTP
GET parameter, when reading local files using
"/modules/blackcat/widgets/logs.php" script. A remote unauthenticated attacker
can download arbitrary files from the vulnerable system using directory
traversal sequences ("../").
A simple exploit below allows download of "config.php" file:
http://host/modules/blackcat/widgets/logs.php?dl=/../config.php
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Solution:
Update to BlackCat CMS 1.1.2
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References:
[1] High-Tech Bridge Advisory HTB23263 -
https://www.htbridge.com/advisory/HTB23263 - Path Traversal in BlackCat CMS.
[2] BlackCat CMS - http://blackcat-cms.org/ - OpenSource Content Management
System.
[3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ -
international in scope and free for public use, CVE® is a dictionary of
publicly known information security vulnerabilities and exposures.
[4] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to
developers and security practitioners, CWE is a formal list of software
weakness types.
[5] ImmuniWeb® SaaS - https://www.htbridge.com/immuniweb/ - hybrid of manual
web application penetration test and cutting-edge vulnerability scanner
available online via a Software-as-a-Service (SaaS) model.
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Disclaimer: The information provided in this Advisory is provided "as is" and
without any warranty of any kind. Details of this Advisory may be updated in
order to provide as accurate information as possible. The latest version of the
Advisory is available on web page [1] in the References.
