GNU Sharutils Unshar Local Insecure Temporary File Creation Vulnerability

BID:12981

Info

GNU Sharutils Unshar Local Insecure Temporary File Creation Vulnerability

Bugtraq ID: 12981
Class: Design Error
CVE: CVE-2005-0990
Remote: No
Local: Yes
Published: Apr 04 2005 12:00AM
Updated: Feb 21 2007 10:56PM
Credit: Joey Hess is credited with the discovery of this issue.
Vulnerable: SGI ProPack 3.0
Redhat Linux 9.0 i386
Redhat Linux 7.3 i686
Redhat Linux 7.3 i386
Redhat Linux 7.3
Redhat Fedora Core2
Redhat Fedora Core1
Redhat Enterprise Linux WS 4
Redhat Enterprise Linux WS 3
Redhat Enterprise Linux WS 2.1 IA64
Redhat Enterprise Linux WS 2.1
Redhat Enterprise Linux ES 4
Redhat Enterprise Linux ES 3
Redhat Enterprise Linux ES 2.1 IA64
Redhat Enterprise Linux ES 2.1
Redhat Enterprise Linux AS 4
Redhat Enterprise Linux AS 3
Redhat Enterprise Linux AS 2.1 IA64
Redhat Enterprise Linux AS 2.1
Redhat Desktop 4.0
Redhat Desktop 3.0
Redhat Advanced Workstation for the Itanium Processor 2.1 IA64
Redhat Advanced Workstation for the Itanium Processor 2.1
GNU sharutils 4.2.1
+ Gentoo Linux 1.4 _rc3
 + Gentoo Linux 1.4 _rc2
 + Gentoo Linux 1.4 _rc1
 + Gentoo Linux 1.4
+ HP Secure OS software for Linux 1.0
+ MandrakeSoft Corporate Server 3.0 x86_64
 + MandrakeSoft Corporate Server 3.0
+ MandrakeSoft Corporate Server 2.1 x86_64
 + MandrakeSoft Corporate Server 2.1
+ Mandriva Linux Mandrake 10.1 x86_64
 + Mandriva Linux Mandrake 10.1
+ Mandriva Linux Mandrake 10.0 AMD64
 + Mandriva Linux Mandrake 10.0
+ Redhat Fedora Core3
 + Redhat Linux 7.2 ia64
 + Redhat Linux 7.2 i386
 + Redhat Linux 7.1 ia64
 + Redhat Linux 7.1 i386
 + Redhat Linux 7.1 alpha
 + Redhat Linux 7.0 i386
 + Redhat Linux 7.0 alpha
 + Redhat Linux 6.2 sparc
 + Redhat Linux 6.2 i386
 + Redhat Linux 6.2 alpha
 + Turbolinux Appliance Server 1.0 Workgroup Edition
 + Turbolinux Appliance Server 1.0 Hosting Edition
 + Turbolinux Appliance Server Hosting Edition 1.0
+ Turbolinux Appliance Server Workgroup Edition 1.0
+ Turbolinux Home
+ Turbolinux Turbolinux 10 F...
 + Turbolinux Turbolinux Desktop 10.0
+ Turbolinux Turbolinux Server 8.0
+ Turbolinux Turbolinux Server 7.0
+ Turbolinux Turbolinux Workstation 8.0
+ Turbolinux Turbolinux Workstation 7.0
+ Ubuntu Ubuntu Linux 4.1 ppc
 + Ubuntu Ubuntu Linux 4.1 ia64
 + Ubuntu Ubuntu Linux 4.1 ia32
 GNU sharutils 4.2
+ Caldera OpenUnix 8.0
+ Caldera UnixWare 7.1.1
+ HP Secure OS software for Linux 1.0
+ Redhat Linux 7.2 ia64
 + Redhat Linux 7.2 i386
 + Redhat Linux 7.1 ia64
 + Redhat Linux 7.1 i386
 + Redhat Linux 7.1 alpha
 + Redhat Linux 7.0 i386
 + Redhat Linux 7.0 alpha
 + Redhat Linux 6.2 sparc
 + Redhat Linux 6.2 i386
 + Redhat Linux 6.2 alpha
 Avaya S8710 R2.0.1
Avaya S8710 R2.0.0
Avaya S8700 R2.0.1
Avaya S8700 R2.0.0
Avaya S8500 R2.0.1
Avaya S8500 R2.0.0
Avaya S8300 R2.0.1
Avaya S8300 R2.0.0
Avaya Modular Messaging (MSS) 2.0
Avaya Modular Messaging (MSS) 1.1
Avaya MN100
Avaya Intuity LX
Avaya Converged Communications Server 2.0
Not Vulnerable:

Discussion

GNU Sharutils Unshar Local Insecure Temporary File Creation Vulnerability

The GNU Sharutils 'unshar' utility creates temporary files in an insecure manner. A design error allows a file to be insecurely opened or created and subsequently written to.

A local attacker may leverage this issue to corrupt arbitrary files with the privileges of an unsuspecting user that activates the affected application.

Exploit / POC

GNU Sharutils Unshar Local Insecure Temporary File Creation Vulnerability

No exploit is required to leverage this issue.

Solution / Fix

GNU Sharutils Unshar Local Insecure Temporary File Creation Vulnerability

Solution:
Please see referenced advisories for more information.


GNU sharutils 4.2.1

References

GNU Sharutils Unshar Local Insecure Temporary File Creation Vulnerability

References:
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