============================== ===============
MGC ALERT 2014-002
- Original release date: March 5, 2014
- Last revised: November 17, 2014
- Discovered by: Manuel Garcia Cardenas
- Severity: 4,8/10 (CVSS Base Score)
============================== ===============
I. VULNERABILITY
-------------------------
Reflected XSS in Nibbleblog <= v4.0.1
II. BACKGROUND
-------------------------
Nibbleblog is a powerful engine for creating blogs, all you need is PHP to
work.
III. DESCRIPTION
-------------------------
Has been detected a reflected XSS vulnerability in Nibbleblog, that allows
the execution of arbitrary HTML/script code to be executed in the context
of the victim user's browser.
The code injection is done through the parameter warning in the page
index.php parameters "author_name" and "content".
IV. PROOF OF CONCEPT
-------------------------
Malicious Request:
http://vulnerablesite.com/ nibbleblog/index.php? controller=post&action=view& id_post=1
hash= 10905d09405f5db41d3c6645fd23e7 2746f76106&author_name=<XSS
injection>&author_email=& content=<XSS injection>
Example:
http://vulnerablesite.com/ nibbleblog/index.php? controller=post&action=view& id_post=1
hash= 10905d09405f5db41d3c6645fd23e7 2746f76106&author_name=%22%3E% 3Cscript%3Ealert%281%29%3C% 2Fscript%3E&author_email=& content=%22%3E%3Cscript% 3Ealert%281%29%3C%2Fscript%3E
V. BUSINESS IMPACT
-------------------------
An attacker can execute arbitrary HTML or script code in a targeted user's
browser, this can leverage to steal sensitive information as user
credentials, personal data, etc.
VI. SYSTEMS AFFECTED
-------------------------
Nibbleblog <= v4.0.1
VII. SOLUTION
-------------------------
Update to version 4.0.2
VIII. REFERENCES
-------------------------
http://www.nibbleblog.com/
http://blog.nibbleblog.com/ post/nibbleblog-v4.0.2-coffee/
IX. CREDITS
-------------------------
This vulnerability has been discovered and reported
by Manuel Garcia Cardenas (advidsec (at) gmail (dot) com).
X. REVISION HISTORY
-------------------------
March 5, 2014 1: Initial release
November 17, 2014 2: Last revision
XI. DISCLOSURE TIMELINE
-------------------------
March 5, 2014 1: Vulnerability acquired by Manuel Garcia Cardenas
March 5, 2014 2: Send to vendor
March 7, 2014 3: New version that includes patched code
http://blog.nibbleblog.com/ post/nibbleblog-v4.0.2-coffee/
November 17, 2014 4: Sent to lists
XII. LEGAL NOTICES
-------------------------
The information contained within this advisory is supplied "as-is" with no
warranties or guarantees of fitness of use or otherwise.
XIII. ABOUT
-------------------------
Manuel Garcia Cardenas
Pentester
MGC ALERT 2014-002
- Original release date: March 5, 2014
- Last revised: November 17, 2014
- Discovered by: Manuel Garcia Cardenas
- Severity: 4,8/10 (CVSS Base Score)
==============================
I. VULNERABILITY
-------------------------
Reflected XSS in Nibbleblog <= v4.0.1
II. BACKGROUND
-------------------------
Nibbleblog is a powerful engine for creating blogs, all you need is PHP to
work.
III. DESCRIPTION
-------------------------
Has been detected a reflected XSS vulnerability in Nibbleblog, that allows
the execution of arbitrary HTML/script code to be executed in the context
of the victim user's browser.
The code injection is done through the parameter warning in the page
index.php parameters "author_name" and "content".
IV. PROOF OF CONCEPT
-------------------------
Malicious Request:
http://vulnerablesite.com/
hash=
injection>&author_email=&
Example:
http://vulnerablesite.com/
hash=
V. BUSINESS IMPACT
-------------------------
An attacker can execute arbitrary HTML or script code in a targeted user's
browser, this can leverage to steal sensitive information as user
credentials, personal data, etc.
VI. SYSTEMS AFFECTED
-------------------------
Nibbleblog <= v4.0.1
VII. SOLUTION
-------------------------
Update to version 4.0.2
VIII. REFERENCES
-------------------------
http://www.nibbleblog.com/
http://blog.nibbleblog.com/
IX. CREDITS
-------------------------
This vulnerability has been discovered and reported
by Manuel Garcia Cardenas (advidsec (at) gmail (dot) com).
X. REVISION HISTORY
-------------------------
March 5, 2014 1: Initial release
November 17, 2014 2: Last revision
XI. DISCLOSURE TIMELINE
-------------------------
March 5, 2014 1: Vulnerability acquired by Manuel Garcia Cardenas
March 5, 2014 2: Send to vendor
March 7, 2014 3: New version that includes patched code
http://blog.nibbleblog.com/
November 17, 2014 4: Sent to lists
XII. LEGAL NOTICES
-------------------------
The information contained within this advisory is supplied "as-is" with no
warranties or guarantees of fitness of use or otherwise.
XIII. ABOUT
-------------------------
Manuel Garcia Cardenas
Pentester