Advisory Details

October 8th, 2008

Novell eDirectory dhost.exe Accept Language Header Heap Overflow Vulnerability

ZDI-08-064
ZDI-CAN-313

CVE ID CVE-2008-4479
CVSS SCORE
AFFECTED VENDORS Novell
AFFECTED PRODUCTS eDirectory
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 6084. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS

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 RESPONSE Novell has issued an update to correct this vulnerability. More details can be found at:
TID 7000086
DISCLOSURE TIMELINE
  • 2008-04-08 - Vulnerability reported to vendor
  • 2008-10-08 - Coordinated public release of advisory
CREDIT Anonymous
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