Python os.py Predictable Temporary Filename Command Execution Vulnerability

BID:5581

Info

Python os.py Predictable Temporary Filename Command Execution Vulnerability

Bugtraq ID: 5581
Class: Design Error
CVE: CVE-2002-1119
Remote: No
Local: Yes
Published: Aug 28 2002 12:00AM
Updated: Jul 11 2009 03:56PM
Credit: Discovery of this vulnerability credited to Zack Weinberg.
Vulnerable: Python Software Foundation Python 2.3
+ S.u.S.E. Linux Personal 9.0 x86_64
 + S.u.S.E. Linux Personal 9.0
Python Software Foundation Python 2.2.2
+ OpenPKG OpenPKG 1.2
+ OpenPKG OpenPKG 1.2
+ Redhat Linux 7.3
+ Redhat Linux 7.3
+ S.u.S.E. Linux Personal 8.2
+ S.u.S.E. Linux Personal 8.2
Python Software Foundation Python 2.2.1
+ Debian Linux 3.0 sparc
 + Debian Linux 3.0 s/390
 + Debian Linux 3.0 ppc
 + Debian Linux 3.0 mipsel
 + Debian Linux 3.0 mips
 + Debian Linux 3.0 m68k
 + Debian Linux 3.0 ia-64
 + Debian Linux 3.0 ia-32
 + Debian Linux 3.0 hppa
 + Debian Linux 3.0 arm
 + Debian Linux 3.0 alpha
 + Debian Linux 3.0
+ Gentoo Linux 1.4 _rc1
 + Gentoo Linux 1.2
+ MandrakeSoft Corporate Server 2.1 x86_64
 + MandrakeSoft Corporate Server 2.1
+ Mandriva Linux Mandrake 9.0
+ OpenPKG OpenPKG 1.1
+ SuSE Linux 8.1
Python Software Foundation Python 2.2
+ Mandriva Linux Mandrake 8.2 ppc
 + Mandriva Linux Mandrake 8.2
+ Mandriva Linux Mandrake 8.1 ia64
 + Mandriva Linux Mandrake 8.1
Python Software Foundation Python 2.1.3
+ Debian Linux 3.0
Python Software Foundation Python 2.1.2
Python Software Foundation Python 2.1.1
+ Redhat Linux 7.2
+ Sun Linux 5.0.7
Python Software Foundation Python 2.1
+ Debian Linux 3.1 sparc
 + Debian Linux 3.1 s/390
 + Debian Linux 3.1 ppc
 + Debian Linux 3.1 mipsel
 + Debian Linux 3.1 mips
 + Debian Linux 3.1 m68k
 + Debian Linux 3.1 ia-64
 + Debian Linux 3.1 ia-32
 + Debian Linux 3.1 hppa
 + Debian Linux 3.1 arm
 + Debian Linux 3.1 amd64
 + Debian Linux 3.1 alpha
 + Debian Linux 3.1
+ Debian Linux 3.0 sparc
 + Debian Linux 3.0 s/390
 + Debian Linux 3.0 ppc
 + Debian Linux 3.0 mipsel
 + Debian Linux 3.0 mips
 + Debian Linux 3.0 m68k
 + Debian Linux 3.0 ia-64
 + Debian Linux 3.0 ia-32
 + Debian Linux 3.0 hppa
 + Debian Linux 3.0 arm
 + Debian Linux 3.0 alpha
 + Debian Linux 3.0
Python Software Foundation Python 2.0.1
Python Software Foundation Python 2.0
+ Mandriva Linux Mandrake 8.0 ppc
 + Mandriva Linux Mandrake 8.0
Python Software Foundation Python 1.6.1
Python Software Foundation Python 1.6
Python Software Foundation Python 1.5.2
+ Caldera OpenLinux Server 3.1.1
+ Caldera OpenLinux Server 3.1
+ Caldera OpenLinux Workstation 3.1.1
+ Caldera OpenLinux Workstation 3.1
+ Debian Linux 3.0
+ Debian Linux 2.2 sparc
 + Debian Linux 2.2 powerpc
 + Debian Linux 2.2 IA-32
 + Debian Linux 2.2 arm
 + Debian Linux 2.2 alpha
 + Debian Linux 2.2 68k
 + Debian Linux 2.2
+ MandrakeSoft Single Network Firewall 7.2
+ Mandriva Linux Mandrake 7.2
+ Redhat Linux 7.3
+ Redhat Linux 7.2
+ Redhat Linux 7.1
+ Redhat Linux 7.0
+ Redhat Linux 6.2
 + Redhat Linux for iSeries 7.1
+ Redhat Linux for pSeries 7.1
+ Sun Linux 5.0.7
+ Trustix Secure Linux 1.5
Not Vulnerable: Python Software Foundation Python 2.3
+ S.u.S.E. Linux Personal 9.0 x86_64
 + S.u.S.E. Linux Personal 9.0

Discussion

Python os.py Predictable Temporary Filename Command Execution Vulnerability

It has been reported that some versions of Python create temporary files in an insecure manner. The vulnerability occurs in the os._execvpe function found in os.py.

It has been reported that exploitation of this vulnerability could lead to the execution of arbitrary code.

Exploit / POC

Python os.py Predictable Temporary Filename Command Execution Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

Python os.py Predictable Temporary Filename Command Execution Vulnerability

Solution:
Sun Linux 5.0 security alert (Alert ID: 56122) available.

Sun have made fixes available to address this issue in Sun Linux 5.0.7. Fixes are linked below.

Debian and Conectiva have released fixes addressing this issue.

Gentoo Linux has released an advisory. It is highly advised that users who have installed dev-lang/python-2.2.1-r4 and earlier update their systems by issuing the following commands:

emerge rsync
emerge fetchmail
emerge clean

SCO has released a security advisory containing fixes which address this issue.

Mandrake has relased an updated advisory, MDKSA-2002:082-1, that include fixes for Mandrake Linux 9.0. Information about obtaining and applying fixes are available in the referenced advisory.

RedHat has released a security advisory (RHSA-2002:202-25) that includes fixes. Users are advised to upgrade as soon as possible.


Python Software Foundation Python 1.5.2

Python Software Foundation Python 2.0

Python Software Foundation Python 2.1

Python Software Foundation Python 2.1.1

Python Software Foundation Python 2.1.3

Python Software Foundation Python 2.2

Python Software Foundation Python 2.2.1

Python Software Foundation Python 2.2.2

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