[HSC] GWExtranet Script Injections & Privilege Escalation Vulnerability


Attackers may exploit this issue via a web client. An attacker may leverage 
this 

issue to have arbitrary script code execute in the browser of an unsuspecting 
user 

in the context of the affected site. This may help the attacker steal 
cookie-based 

authentication credentials and launch other attacks. A successful exploit could 

allow an attacker to compromise the application by defacing by evil code 
injection.





Hackers Center Security Group (http://www.hackerscenter.com)

Credit: Doz



Risk: Medium

Class: Input Validation Error in scp.dll



Vendor: http://www.messagingarchitects.com 

Product: Messaging Architects GWExtranet

Version: 3.0


* Attackers can exploit these issues via a web client.



Privilege Escalation:


Attackers can use privilege escalation combined with Java script to deface

with simple injection on the New Event posting board even when "Compose" is off 
for

public. 


/gwextranet/scp.dll/compose?user=ID






Other Vuln Urls:

                       

/GWExtranet/scp.dll/frmonth?filter=<Evil Script>

/GWExtranet/scp.dll/frmonth?user=<Evil Script>

/GWExtranet/scp.dll/frmonth?month=<Evil Script>

/gwextranet/scp.dll/?user=USERID&template=<Evil Script>


URL EXAMPLE:


Victim.com/Gwextranet/scp.dll/send?user=[USER_ID]&Item.to=[SCRIPT]&Item.cc=[SCRIPT]&Item.location=[SCRIPT]&Calendar.queryMonth=11&Calendar.queryDay=24&Calendar.queryYear=2007&Calendar.queryTime=11%3A00&Calendar.queryAM=1&Calendar.queryDuration=1&Calendar.queryDurationType=3&Item.subject=[SCRIPT]&Item.message=[SCRIPT]&Compose.Send.x=45&Compose.Send.y=6



Google: GWExtranet calendar



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