[NEWS] iPlanet Search Buffer Overflow

From: support@securiteam.com
Date: 07/10/02 

From: support@securiteam.com
To: list@securiteam.com
Date: Wed, 10 Jul 2002 08:31:56 +0200 (CEST)

The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
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  iPlanet Search Buffer Overflow
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SUMMARY

iPlanet's Web Server, now owned and maintained by Sun Microsystems, has a
remotely exploitable buffer overrun vulnerability in the search component.

DETAILS

Vulnerable systems:
 * iWS 6.0
 * iWS 4.1

By default, the search capabilities of iPlanet's Web Server are turned
off, but if search has been enabled then the server is vulnerable to a
remotely exploitable buffer overrun. By supplying an overly long value for
the 'NS-rel-doc-name' parameter, a saved return address is overwritten on
the stack, giving control over the vulnerable process' execution. Any code
supplied will run in the security context of the account running the web
server. On Windows NT/2000, for example, this account is the local SYSTEM
account, by default, so any code will run uninhibited.

Fix information:
NGSSoftware alerted Sun to this problem on 25 April 2002 and were informed
that Sun wanted to address this in the next service pack, despite
NGSSoftware's recommendation that a hotfix should be released as this is a
remotely exploitable issue. This aside the service pack has been released.

Users of iPlanet Web Server 6 should install Service Pack 3.
Users of iPlanet Web Server 4.1 should install Service Pack 10.

ADDITIONAL INFORMATION

The information has been provided by <mailto:nisr@nextgenss.com>
NGSSoftware Insight Security Research.

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