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HP-UX Shells Insecure Temporary File Creation Vulnerability
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Secunia Advisory:
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SA9628
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Release Date:
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2003-08-28
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Last Update:
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2003-10-31
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Critical:
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Less critical
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Impact:
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Manipulation of data
Privilege escalation
DoS
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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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| | CVE reference: | CVE-2000-1134 (Secunia mirror)
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Description:
HP has confirmed an older vulnerability in HP-UX, which can be exploited by malicious, local users to corrupt the filesystem, cause a DoS (Denial of Service) or escalate their privileges.
The vulnerability is caused due to some shells creating temporary files insecurely with names based on a process id when using the "<<" redirection operator. This can be exploited by either manipulating the temporary files or via symlink attacks.
The vulnerability affects HP9000 servers running HP-UX versions B.10.20, B.11.00, or B.11.11.
Solution:
Apply patches.
HP-UX B.11.11:
PHCO_27345 (sh-posix)
PHCO_27019 (ksh)
PHCO_26561 (csh)
HP-UX B.11.04:
PHCO_29814 (sh-posix)
PHCO_29698 (ksh)
PHCO_29702 (csh)
HP-UX B.11.00:
PHCO_27344 (sh-posix)
PHCO_27418 (ksh)
PHCO_27763 (csh)
HP-UX B.10.20:
PHCO_27804 (sh-posix)
PHCO_27803 (ksh)
PHCO_27819 (csh)
Provided and/or discovered by:
Gordon Irlam
Changelog:
2003-10-31: Added patches for HP-UX 11.04.
Original Advisory:
http://www4.itrc.hp.com/service/cki/docDisplay.do?docId=HPSBUX0308-275
Other References:
http://www.kb.cert.org/vuls/id/10277
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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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