IBM Lotus Sametime Community Services Multiplexer Stack Overflow VulnerabilityZDI-08-028: May 21st, 2008
TippingPoint™ IPS Customer ProtectionTippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 5607, 5698. For further product information on the TippingPoint IPS:
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of IBM Lotus Sametime. Authentication is not required to exploit this vulnerability.
The specific flaw exists in the handling of long URLs in the Community Services Multiplexer (StMux.exe) listening on TCP port 1533. A specially crafted URL can be passed into a vulnerable sscanf() function that will result in a stack overflow resulting in the ability to execute arbitrary code.
Vendor ResponseIBM has issued an update to correct this vulnerability. More details can be found at:
2007-12-11 - Vulnerability reported to vendor
2008-05-21 - Coordinated public release of advisory
CreditThis vulnerability was discovered by:
Manuel Santamarina Suarez