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HP-UX "NLSPATH" Privilege Escalation Vulnerability
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Secunia Advisory:
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SA10159
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Release Date:
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2003-11-07
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Last Update:
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2004-02-12
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Popularity:
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7,629 views
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Critical:
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Less critical
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Impact:
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Privilege escalation
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Where:
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Local system
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Solution Status:
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Vendor Patch
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| OS: | HP-UX 10.x
HP-UX 11.x
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Subscribe:
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| | CVE reference: | CVE-2003-0090
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Description:
A vulnerability has been reported in HP-UX, which can be exploited by malicious, local users to escalate their privileges.
The problem is that a superuser can't restrict the paths set in the "NLSPATH" environment variable for suid programs. This is a problem for programs using "catopen()", since it can be exploited to open specially crafted files, which may result in a format string vulnerability.
The vulnerability affects HP9000 servers running HP-UX releases B.10.20, B.11.00, B.11.04, B.11.11, and B.11.22.
Solution:
Apply patches available at:
http://itrc.hp.com
HP-UX B.11.22:
PHCO_29329
HP-UX B.11.11:
PHCO_29495
HP-UX B.11.04:
PHCO_30191
HP-UX B.11.00:
PHCO_29284
HP-UX B.10.20:
PHCO_26158
Provided and/or discovered by:
Yang Jilong, NSFOCUS Security Team.
Changelog:
2003-11-14: More information released.
2004-02-12: Patches released for version B.11.04.
Original Advisory:
HP:
http://www5.itrc.hp.com/service/cki/docDisplay.do?docId=HPSBUX0311-294
HP-UX libc NLSPATH Environment Variable Privilege Elevation Vulnerability
http://www.nsfocus.com/english/homepage/research/0308.htm
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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