[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