Achievo 1.4.3 - Multiple Authorisation Vulnerabilities








Advisory Name: Multiple Authorization Flaws in Achievo 1.4.3 


Internal Cybsec Advisory Id: 2010-08-02 


Vulnerability Class: Authorization Flaw 


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: 


Vulnerability Description: 


It is possible to create and delete arbitrary activities to and from arbitrary users by modifying IDs in 
client requests. 



Proof of Concept: 


1) To add activities as another user, just change value of the parameter “” in the POST 
request to “/dispatch.php” to any other valid person ID. 


2) To delete activities from any user: 

http://server/dispatch.php?atknodetype=timereg.hours&atkaction=delete&'XXXX' (where „XXXX. is the actual ID of the activity to be 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 


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