Yukihiro Matsumoto Ruby SAFE Level Restriction Bypass Vulnerability

BID:14909

Info

Yukihiro Matsumoto Ruby SAFE Level Restriction Bypass Vulnerability

Bugtraq ID: 14909
Class: Design Error
CVE: CVE-2005-2337
Remote: Yes
Local: Yes
Published: Sep 22 2005 12:00AM
Updated: Mar 19 2015 09:34AM
Credit: The original reporter of this issue is currently unknown.
Vulnerable: Yukihiro Matsumoto Ruby 1.8.2 pre3
+ Gentoo Linux
Yukihiro Matsumoto Ruby 1.8.2 pre2
Yukihiro Matsumoto Ruby 1.8.2 pre1
Yukihiro Matsumoto Ruby 1.8.2
+ Red Hat Fedora Core4
 + Red Hat Fedora Core3
 Yukihiro Matsumoto Ruby 1.8.1
+ Red Hat Fedora Core3
 + Red Hat Fedora Core2
 Yukihiro Matsumoto Ruby 1.8
+ Red Hat Fedora Core3
 + Ubuntu Ubuntu Linux 5.0 4 powerpc
 + Ubuntu Ubuntu Linux 5.0 4 i386
 + Ubuntu Ubuntu Linux 5.0 4 amd64
 + Ubuntu Ubuntu Linux 4.1 ppc
 + Ubuntu Ubuntu Linux 4.1 ia64
 + Ubuntu Ubuntu Linux 4.1 ia32
 Yukihiro Matsumoto Ruby 1.6.8
Yukihiro Matsumoto Ruby 1.6.7
+ 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
Yukihiro Matsumoto Ruby 1.6
SuSE SUSE Linux Enterprise Server 9
SuSE SUSE Linux Enterprise Server 8
+ Linux kernel 2.4.21
+ Linux kernel 2.4.19
SGI Advanced Linux Environment 3.0
S.u.S.E. SuSE Linux Standard Server 8.0
S.u.S.E. SuSE Linux School Server for i386
S.u.S.E. SUSE LINUX Retail Solution 8.0
S.u.S.E. SuSE Linux Openexchange Server 4.0
S.u.S.E. Open-Enterprise-Server 9.0
S.u.S.E. Novell Linux Desktop 9.0
S.u.S.E. Linux Professional 10.0 OSS
S.u.S.E. Linux Professional 9.3 x86_64
S.u.S.E. Linux Professional 9.3
S.u.S.E. Linux Professional 9.2 x86_64
S.u.S.E. Linux Professional 9.2
S.u.S.E. Linux Professional 9.1 x86_64
S.u.S.E. Linux Professional 9.1
S.u.S.E. Linux Professional 9.0 x86_64
S.u.S.E. Linux Professional 9.0
S.u.S.E. Linux Professional 8.2
S.u.S.E. Linux Personal 10.0 OSS
S.u.S.E. Linux Personal 9.3 x86_64
S.u.S.E. Linux Personal 9.3
S.u.S.E. Linux Personal 9.2 x86_64
S.u.S.E. Linux Personal 9.2
S.u.S.E. Linux Personal 9.1 x86_64
S.u.S.E. Linux Personal 9.1
S.u.S.E. Linux Personal 9.0 x86_64
S.u.S.E. Linux Personal 9.0
S.u.S.E. Linux Personal 8.2
S.u.S.E. Linux Desktop 1.0
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 Desktop 4.0
RedHat Desktop 3.0
Red Hat Enterprise Linux AS 4
Red Hat Enterprise Linux AS 3
Red Hat Enterprise Linux AS 2.1 IA64
Red Hat Enterprise Linux AS 2.1
Mandriva Linux Mandrake 2006.0 x86_64
Mandriva Linux Mandrake 2006.0
Mandriva Linux Mandrake 10.2 x86_64
Mandriva Linux Mandrake 10.2
Mandriva Linux Mandrake 10.1 x86_64
Mandriva Linux Mandrake 10.1
MandrakeSoft Corporate Server 3.0 x86_64
MandrakeSoft Corporate Server 3.0
MandrakeSoft Corporate Server 2.1 x86_64
MandrakeSoft Corporate Server 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
Conectiva Linux 10.0
Not Vulnerable: Yukihiro Matsumoto Ruby 1.8.3

Discussion

Yukihiro Matsumoto Ruby SAFE Level Restriction Bypass Vulnerability

Ruby is susceptible to a SAFE level restriction-bypass vulnerability. This issue is due to a flaw in the logic that implements the SAFE level checks.

This issue allows attackers to bypass the expected SAFE level restrictions, possibly allowing them to execute unauthorized script code in the context of affected applications.

The specific impact of this issue depends on the implementation of scripts that use SAFE level security checks.

Ruby versions prior to 1.8.3 are vulnerable to this issue.

Exploit / POC

Yukihiro Matsumoto Ruby SAFE Level Restriction Bypass Vulnerability

An exploit is not required.

Solution / Fix

Yukihiro Matsumoto Ruby SAFE Level Restriction Bypass Vulnerability

Solution:
The vendor has released Ruby 1.8.3, along with a patch to address this issue in Ruby version 1.6.8. Please see the referenced vendor advisories for more information and fixes.


Yukihiro Matsumoto Ruby 1.6.7

Yukihiro Matsumoto Ruby 1.6.8

Yukihiro Matsumoto Ruby 1.8.1

Yukihiro Matsumoto Ruby 1.8.2

References

Yukihiro Matsumoto Ruby SAFE Level Restriction Bypass Vulnerability

References:

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