CUPS Insecure Temporary File Creation Vulnerability

BID:6435

Info

CUPS Insecure Temporary File Creation Vulnerability

Bugtraq ID: 6435
Class: Race Condition Error
CVE: CVE-2002-1366
Remote: No
Local: Yes
Published: Dec 19 2002 12:00AM
Updated: Jul 11 2009 07:16PM
Credit: Discovered by zen-parse.
Vulnerable: Easy Software Products CUPS 1.1.17
+ Redhat Desktop 3.0
+ Redhat Enterprise Linux AS 3
 + Redhat Enterprise Linux ES 3
 + Redhat Enterprise Linux WS 3
 Easy Software Products CUPS 1.1.16
+ Mandriva Linux Mandrake 9.0
Easy Software Products CUPS 1.1.15
+ Conectiva Linux Enterprise Edition 1.0
+ SuSE Linux 8.1
Easy Software Products CUPS 1.1.14
+ 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
+ Mandriva Linux Mandrake 8.2 ppc
 + Mandriva Linux Mandrake 8.2
Easy Software Products CUPS 1.1.13
Easy Software Products CUPS 1.1.12
+ SuSE Linux 8.0 i386
 + SuSE Linux 8.0
Easy Software Products CUPS 1.1.10
+ Caldera OpenLinux Server 3.1.1
+ Caldera OpenLinux Workstation 3.1.1
+ Mandriva Linux Mandrake 8.1 ia64
 + Mandriva Linux Mandrake 8.1
+ SuSE Linux 7.3 sparc
 + SuSE Linux 7.3 ppc
 + SuSE Linux 7.3 i386
 Easy Software Products CUPS 1.1.7
Easy Software Products CUPS 1.1.6
+ Caldera OpenLinux Server 3.1
+ Caldera OpenLinux Workstation 3.1
+ Mandriva Linux Mandrake 8.0 ppc
 + Mandriva Linux Mandrake 8.0
+ SuSE Linux 7.2 i386
 + SuSE Linux 7.1 x86
 + SuSE Linux 7.1 sparc
 + SuSE Linux 7.1 ppc
 + SuSE Linux 7.1 alpha
 Easy Software Products CUPS 1.1.4
+ Debian Linux 2.3
+ Mandriva Linux Mandrake 7.2
Easy Software Products CUPS 1.1.1
+ Redhat PowerTools 7.0
Easy Software Products CUPS 1.0.4
+ Debian Linux 2.2
Apple Mac OS X 10.2.2
Apple Mac OS X 10.2
Not Vulnerable: Easy Software Products CUPS 1.1.18
+ MandrakeSoft Corporate Server 2.1 x86_64
 + MandrakeSoft Corporate Server 2.1
+ MandrakeSoft Multi Network Firewall 2.0
+ Mandriva Linux Mandrake 9.0
+ S.u.S.E. Linux Personal 8.2
Apple Mac OS X 10.2.3

Discussion

CUPS Insecure Temporary File Creation Vulnerability

It has been reported that some versions of CUPS may create temporary files in an insecure manner.

The vulnerability occurs when creating the '/etc/cups/certs/<pid>' file. An attacker can exploit this vulnerability to create or overwrite any file with elevated privileges.

Successful exploitation is time dependent and require the attacker to obtain the 'lp' user privileges.

Exploit / POC

CUPS Insecure Temporary File Creation Vulnerability

iDefense has developed a functional exploit, however it has not been released to the public.

Solution / Fix

CUPS Insecure Temporary File Creation Vulnerability

Solution:
Conectiva has released advisory CLA-2003:702 to address this issue. Further information regarding obtaining and applying fixes can be found in the referenced advisory.

It is recommended that all Gentoo Linux users who are running
net-print/cups-1.1.17_pre20021025 or earlier update their systems as
follows:

emerge rsync
emerge cups
emerge clean

Debian has released a security advisory (DSA 232-1) containing fixes. Users are advised to upgrade as soon as possible.

** Debian has released an updated advisory (DSA 232-2) containing links to corrected fixes containing the proper dependencies for libPNG.

This vulnerability is eliminated in CUPS 1.1.18. Red Hat is currently developing fixes. Apple MacOS X 10.2.3 and MacOS X Server 10.2.3 are not vulnerable.


Easy Software Products CUPS 1.0.4

Easy Software Products CUPS 1.1.1

Easy Software Products CUPS 1.1.10

Easy Software Products CUPS 1.1.12

Easy Software Products CUPS 1.1.13

Easy Software Products CUPS 1.1.14

Easy Software Products CUPS 1.1.15

Easy Software Products CUPS 1.1.16

Easy Software Products CUPS 1.1.17

Easy Software Products CUPS 1.1.4

Easy Software Products CUPS 1.1.6

Easy Software Products CUPS 1.1.7

Apple Mac OS X 10.2

Apple Mac OS X 10.2.2

References

CUPS Insecure Temporary File Creation Vulnerability

References:

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