[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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