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IBM AIX Multiple Privilege Escalation Vulnerabilities
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Secunia Advisory:
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SA26219
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Release Date:
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2007-07-27
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Last Update:
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2007-12-12
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Popularity:
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7,824 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: | AIX 5.x
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Subscribe:
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Instant alerts on relevant vulnerabilities 
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| | CVE reference: | CVE-2007-3333
CVE-2007-4003
CVE-2007-4004
CVE-2007-4236
CVE-2007-4237
CVE-2007-4238
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Description:
Some vulnerabilities have been reported in IBM AIX, which can be exploited by malicious, local users to gain escalated privileges.
1) The vulnerability is caused due to the program loading an arbitrary library. This can be exploited to load an attacker-supplied library and execute arbitrary code with root privileges.
2) A boundary error in the "capture" program can be exploited to cause a stack-based buffer overflow via an overly long, specially crafted series of control sequences.
Successful exploitation allows execution of arbitrary code with root privileges.
3) Multiple boundary errors in the "ftp" program can be exploited to cause stack-based buffer overflows and execute arbitrary code with root privileges.
4) A boundary error in the "lpd" command can be exploited to cause a buffer overflow and allow users in the printq group to execute arbitrary code with root privileges.
5) Insecure file permissions on the "pioinit" script can be exploited by users in the bin group to execute arbitrary code with root privileges by replacing the affected script with a malicious one.
6) A boundary error in the "arp" command, which is installed with the devices.common.IBM.atm.rte fileset, can be exploited to cause a buffer overflow and execute arbitrary code with root privileges.
The vulnerabilities are reported in versions 5.2.0 and 5.3.0.
Solution:
Apply interim fixes or APARs as soon as they become available:
ftp://aix.software.ibm.com/aix/efixes/security/pioout_ifix.tar.Z
ftp://aix.software.ibm.com/aix/efixes/security/capture_ifix.tar.Z
ftp://aix.software.ibm.com/aix/efixes/security/ftpgets_ifix.tar.Z
ftp://aix.software.ibm.com/aix/efixes/security/lpd_ifix.tar.Z
ftp://aix.software.ibm.com/aix/efixes/security/pioinit_ifix.tar.Z
ftp://aix.software.ibm.com/aix/efixes/security/atm_ifix.tar.Z
AIX 5.2.0:
APAR IZ01121
APAR IZ01135
APAR IZ01812
APAR IY98560
APAR IY79785
APAR IZ00521
AIX 5.3.0:
APAR IZ01122/IZ00988
APAR IZ01134/IZ02538
APAR IZ01813/IZ01993
APAR IY98339/IY98457
APAR IY79786
APAR IZ01535/IZ00510
Provided and/or discovered by:
1) Discovered by an anonymous person and reported via iDefense Labs.
2) Discovered by an anonymous person and reported via iDefense Labs.
3) Discovered by an anonymous person and reported via iDefense Labs.
4)-6) Reported by the vendor.
Changelog:
2007-08-09: Added CVE reference.
2007-09-19: Reversed APARS IZ01134 and IZ01135 in "Solution" section based on additional information from IBM.
2007-12-12: Updated "Solution" section and added additional vendor links.
Original Advisory:
IBM:
ftp://aix.software.ibm.com/aix/efixes/security/README
http://www-1.ibm.com/support/docview.wss?uid=isg1IZ01134
http://www-1.ibm.com/support/docview.wss?uid=isg1IZ01135
http://www-1.ibm.com/support/docview.wss?uid=isg1IZ02538
http://www-1.ibm.com/support/docview.wss?uid=isg1IZ01812
http://www-1.ibm.com/support/docview.wss?uid=isg1IZ01813
http://www-1.ibm.com/support/docview.wss?uid=isg1IZ01993
http://www-1.ibm.com/support/docview.wss?uid=isg1IZ00521
http://www-1.ibm.com/support/docview.wss?uid=isg1IZ01121
iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=569
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=570
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=571
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