Novell Groupwise Webaccess Stack Overflow

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Novell Groupwise Webaccess Stack Overflow

来源：http://www.protekresearchlab.com/ 作者：Provencher 发布时间：2010-07-16

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Application: Novell Groupwise Webaccess Stack Overflow

Platforms: Windows, Linux & Netware (GroupWise 7.0, 7.01, 7.02, 7.03x, 7.04, 8.0, 8.01x)

Exploitation: Remote code execution

CVE Number:

Novell TID: 7006380

Author: Francis Provencher (Protek Research Lab's)

Blog: http://www.protekresearchlab.com/

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1) Introduction
2) Report Timeline
3) Technical details
4) The Code

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===============
1) Introduction
===============

Novell, Inc. is a global software and services company based in Waltham, Massachusetts. The company specializes in enterprise operating systems, such as SUSE Linux Enterprise and Novell NetWare; identity, security, and systems management solutions; and collaboration solutions, such as Novell Groupwise and Novell Pulse.

Novell was instrumental in making the Utah Valley a focus for technology and software development. Novell technology contributed to the emergence of local area networks, which displaced the dominant mainframe computing model and changed computing worldwide. Today, a primary focus of the company is on developing open source software for enterprise clients.

(http://en.wikipedia.org/wiki/Novell)

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2) Report Timeline
============================

2010-05-27 Vendor Contact
2010-05-28 Vendor repsonse
2010-07-15 Patch is release

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============================
3) Technical details
============================

The user Proxy feature of Novell GroupWise WebAccess is vulnerable to a stack overflow exploit. An authenticated user could potentially trigger and execute arbitrary code with "Root" or "SYSTEM" rigths. To overwrite the stack, 1294 byte have to been sent to the user proxy feature.

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4) The Code
===========

This issue can be trigger manually;

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

aaaaaaaaaaaaaaaaabbbb

The stack will be overwrite with 0x62626262

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