Novell eDirectory dhost.exe Accept Language Header Heap Overflow VulnerabilityZDI-08-064: October 8th, 2008
TippingPoint™ IPS Customer ProtectionTippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 6084. For further product information on the TippingPoint IPS:
This vulnerability allows attackers to execute arbitrary code on vulnerable installations of Novell eDirectory. Authentication is not required to exploit this vulnerability.
The specific flaw resides in the web console running on TCP ports 8028 and 8030. The server exposes a web interface and accepts SOAP connections. The service copies the contents of the Accept-Language header within a SOAP request into a fixed-length buffer without any bounds checking. If an attacker sends a specially crafted request it will trigger an overflow during a memory copy operation leading to arbitrary code execution under the context of the SYSTEM user.
Vendor ResponseNovell has issued an update to correct this vulnerability. More details can be found at:
2008-04-08 - Vulnerability reported to vendor
2008-10-08 - Coordinated public release of advisory
CreditThis vulnerability was discovered by: