IBM Tivoli Access Manager for e-Business Lets Remote Users Traverse the Directory
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SecurityTracker Alert ID: 1024927 |
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SecurityTracker URL: http://securitytracker.com/id/1024927
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CVE Reference:
CVE-2010-4622
(Links to External Site)
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Updated: Jan 7 2011
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Original Entry Date: Dec 28 2010
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Impact:
Disclosure of system information, Disclosure of user information
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Fix Available: Yes Vendor Confirmed: Yes Exploit Included: Yes
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Version(s): 6.1.1
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Description:
A vulnerability was reported in IBM Tivoli Access Manager for e-Business. A remote user can view files on the target system.
The software does not properly validate user-supplied input. A remote user can supply a specially crafted request containing certain character encodings to view files on target system that are located outside of the document directory.
IBM AIX is affected.
A demonstration exploit URL is provided:
https://[target]/%uff0e%uff0e/%uff0e%uff0e/%uff0e%uff0e\
/%uff0e%uff0e/etc/passwd
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Impact:
A remote user can view files on the target system.
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Solution:
The vendor has issued a fix (Patch 6.1.1-TIV-AWS-FP0001).
The vendor's advisory is available at:
http://www-01.ibm.com/support/docview.wss?uid=swg24028829
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Vendor URL: www-01.ibm.com/support/docview.wss?uid=swg24028829 (Links to External Site)
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Cause:
Input validation error
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Underlying OS:
UNIX (AIX)
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Message History:
None.
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Source Message Contents
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Date: Tue, 28 Dec 2010 17:05:06 +0000
Subject: IBM Tivoli Access Manager for e-Business / WebSEAL
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http://www.ibm.com/support/docview.wss?uid=swg24028829
Internal defect: 102969
Symptom: WebSEAL does not protect against directory traversal when
certain character encodings are used on AIX. An example
request which exhibits this vulnerability is:
https://<webseal>/%uff0e%uff0e/%uff0e%uff0e/%uff0e%uff0e\
/%uff0e%uff0e/etc/passwd
The change associated with this fix can be reverted by setting
the 'unalias-directory-traversal-characters' configuration entry
within the '[server]' stanza to false.
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