ZDI-08-041: Novell eDirectory dhost Integer Overflow Code Execution Vulnerability
ZDI-08-041: Novell eDirectory dhost Integer Overflow Code Execution
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-08-041
July 10, 2008
-- Affected Vendors:
Novell
-- Affected Products:
Novell eDirectory
-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 5946.
For further product information on the TippingPoint IPS, visit:
http://www.tippingpoint.com
-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Novell eDirectory. Authentication is not
required to exploit this vulnerability.
The specific flaw exists within dhost.exe, bound by default to TCP port
524. Flawed arithmetic applied to a user-supplied value results in an
integer overflow and subsequently a complete stack smash allowing an
attacker to execute arbitrary code via SEH redirection.
-- Vendor Response:
Novell has issued an update to correct this vulnerability. More
details can be found at:
http://www.novell.com/support/search.do?cmd=displayKC&sliceId=SAL_Public&externalId=3694858
-- Disclosure Timeline:
2007-12-04 - Vulnerability reported to vendor
2008-07-10 - Coordinated public release of advisory
-- Credit:
This vulnerability was discovered by:
* Sebastian Apelt (webmaster@xxxxxxxxxxxxx)
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