BID:36369

GNU 'w(1)' Utility Local Privilege Escalation Vulnerability

Info

GNU 'w(1)' Utility Local Privilege Escalation Vulnerability

Bugtraq ID:	36369
Class:	Boundary Condition Error
CVE:
Remote:	No
Local:	Yes
Published:	Sep 11 2009 12:00AM
Updated:	Nov 03 2009 05:57PM
Credit:	Monarch Rich aka 1c239c43f521145fa8385d64a9c32243
Vulnerable:	Sun Trusted Solaris 8.0 x86 Sun Trusted Solaris 8.0 Sun Solaris 9_x86 Sun Solaris 9_sparc Sun Solaris 9 Sun Solaris 8_x86 Sun Solaris 8_sparc Sun Solaris 10_x86 Sun Solaris 10_sparc Sun Solaris 10.0_x86 Sun Solaris 10.0 Sun Solaris 10 Sun OpenSolaris build snv_99 Sun OpenSolaris build snv_98 Sun OpenSolaris build snv_96 Sun OpenSolaris build snv_95 Sun OpenSolaris build snv_94 Sun OpenSolaris build snv_93 Sun OpenSolaris build snv_92 Sun OpenSolaris build snv_91 Sun OpenSolaris build snv_90 Sun OpenSolaris build snv_89 Sun OpenSolaris build snv_88 Sun OpenSolaris build snv_87 Sun OpenSolaris build snv_86 Sun OpenSolaris build snv_85 Sun OpenSolaris build snv_84 Sun OpenSolaris build snv_83 Sun OpenSolaris build snv_82 Sun OpenSolaris build snv_81 Sun OpenSolaris build snv_80 Sun OpenSolaris build snv_78 Sun OpenSolaris build snv_77 Sun OpenSolaris build snv_76 Sun OpenSolaris build snv_68 Sun OpenSolaris build snv_67 Sun OpenSolaris build snv_64 Sun OpenSolaris build snv_61 Sun OpenSolaris build snv_59 Sun OpenSolaris build snv_58 Sun OpenSolaris build snv_57 Sun OpenSolaris build snv_54 Sun OpenSolaris build snv_51 Sun OpenSolaris build snv_50 Sun OpenSolaris build snv_49 Sun OpenSolaris build snv_47 Sun OpenSolaris build snv_45 Sun OpenSolaris build snv_41 Sun OpenSolaris build snv_39 Sun OpenSolaris build snv_38 Sun OpenSolaris build snv_37 Sun OpenSolaris build snv_36 Sun OpenSolaris build snv_29 Sun OpenSolaris build snv_22 Sun OpenSolaris build snv_19 Sun OpenSolaris build snv_13 Sun OpenSolaris build snv_123 Sun OpenSolaris build snv_122 Sun OpenSolaris build snv_121 Sun OpenSolaris build snv_120 Sun OpenSolaris build snv_119 Sun OpenSolaris build snv_118 Sun OpenSolaris build snv_117 Sun OpenSolaris build snv_116 Sun OpenSolaris build snv_115 Sun OpenSolaris build snv_114 Sun OpenSolaris build snv_113 Sun OpenSolaris build snv_112 Sun OpenSolaris build snv_111a Sun OpenSolaris build snv_111 Sun OpenSolaris build snv_110 Sun OpenSolaris build snv_109 Sun OpenSolaris build snv_108 Sun OpenSolaris build snv_107 Sun OpenSolaris build snv_106 Sun OpenSolaris build snv_105 Sun OpenSolaris build snv_104 Sun OpenSolaris build snv_104 Sun OpenSolaris build snv_103 Sun OpenSolaris build snv_102 Sun OpenSolaris build snv_101a Sun OpenSolaris build snv_101 Sun OpenSolaris build snv_100 Sun OpenSolaris build snv_02 Sun OpenSolaris build snv_01 Sun OpenSolaris 0 GNU w(1) 0 Avaya Interactive Response 4.0 Avaya Interactive Response 3.0 Avaya CMS Server 15.0 Avaya CMS Server 14.1 Avaya CMS Server 14.0

Not Vulnerable:

Discussion

GNU 'w(1)' Utility Local Privilege Escalation Vulnerability

The 'w(1)' utility is prone to a local privilege-escalation vulnerability because it fails to properly bounds-check user-supplied data before copying it into an inadequately sized memory buffer.

An attacker can exploit this issue to run arbitrary code with superuser privileges. Successful attacks will completely compromise affected computers.

This issue affects the following:

Solaris 8
Solaris 9
Solaris 10
OpenSolaris based on builds snv_01 through snv_123

The 'w(1)' utility is a common Unix application; other Unix/Linux-based operating systems may also be affected.

Exploit / POC

GNU 'w(1)' Utility Local Privilege Escalation Vulnerability

Currently we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

A commercial proof of concept is available through VUPEN Security - Exploit and PoCs Service. This proof of concept is not otherwise publicly available or known to be circulating in the wild.

Solution / Fix

GNU 'w(1)' Utility Local Privilege Escalation Vulnerability

Solution:
Updates are available. Please see the references for details.

Sun Solaris 10.0