Title: GNU 'w(1)' Utility Local Privilege Escalation Vulnerability
Severity: HIGH
Description:
The 'w(1)' utility is a command-line tool that provides a summary of every currently logged-in user.
The 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. This will trigger a heap-based overflow.
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.
Affected Products:
- Avaya CMS Server 14.0
- Avaya CMS Server 14.1
- Avaya CMS Server 15.0
- Avaya Interactive Response 3.0
- Avaya Interactive Response 4.0
- GNU w(1)
- Sun OpenSolaris
- Sun OpenSolaris build snv_01
- Sun OpenSolaris build snv_02
- Sun OpenSolaris build snv_100
- Sun OpenSolaris build snv_101
- Sun OpenSolaris build snv_101a
- Sun OpenSolaris build snv_102
- Sun OpenSolaris build snv_103
- Sun OpenSolaris build snv_104
- Sun OpenSolaris build snv_104
- Sun OpenSolaris build snv_105
- Sun OpenSolaris build snv_106
- Sun OpenSolaris build snv_107
- Sun OpenSolaris build snv_108
- Sun OpenSolaris build snv_109
- Sun OpenSolaris build snv_110
- Sun OpenSolaris build snv_111
- Sun OpenSolaris build snv_111a
- Sun OpenSolaris build snv_112
- Sun OpenSolaris build snv_113
- Sun OpenSolaris build snv_114
- Sun OpenSolaris build snv_115
- Sun OpenSolaris build snv_116
- Sun OpenSolaris build snv_117
- Sun OpenSolaris build snv_118
- Sun OpenSolaris build snv_119
- Sun OpenSolaris build snv_120
- Sun OpenSolaris build snv_121
- Sun OpenSolaris build snv_122
- Sun OpenSolaris build snv_123
- Sun OpenSolaris build snv_13
- Sun OpenSolaris build snv_19
- Sun OpenSolaris build snv_22
- Sun OpenSolaris build snv_29
- Sun OpenSolaris build snv_36
- Sun OpenSolaris build snv_37
- Sun OpenSolaris build snv_38
- Sun OpenSolaris build snv_39
- Sun OpenSolaris build snv_41
- Sun OpenSolaris build snv_45
- Sun OpenSolaris build snv_47
- Sun OpenSolaris build snv_49
- Sun OpenSolaris build snv_50
- Sun OpenSolaris build snv_51
- Sun OpenSolaris build snv_54
- Sun OpenSolaris build snv_57
- Sun OpenSolaris build snv_58
- Sun OpenSolaris build snv_59
- Sun OpenSolaris build snv_61
- Sun OpenSolaris build snv_64
- Sun OpenSolaris build snv_67
- Sun OpenSolaris build snv_68
- Sun OpenSolaris build snv_76
- Sun OpenSolaris build snv_77
- Sun OpenSolaris build snv_78
- Sun OpenSolaris build snv_80
- Sun OpenSolaris build snv_81
- Sun OpenSolaris build snv_82
- Sun OpenSolaris build snv_83
- Sun OpenSolaris build snv_84
- Sun OpenSolaris build snv_85
- Sun OpenSolaris build snv_86
- Sun OpenSolaris build snv_87
- Sun OpenSolaris build snv_88
- Sun OpenSolaris build snv_89
- Sun OpenSolaris build snv_90
- Sun OpenSolaris build snv_91
- Sun OpenSolaris build snv_92
- Sun OpenSolaris build snv_93
- Sun OpenSolaris build snv_94
- Sun OpenSolaris build snv_95
- Sun OpenSolaris build snv_96
- Sun OpenSolaris build snv_98
- Sun OpenSolaris build snv_99
- Sun Solaris 10
- Sun Solaris 10.0
- Sun Solaris 10.0_x86
- Sun Solaris 10_sparc
- Sun Solaris 10_x86
- Sun Solaris 8
- Sun Solaris 8_x86
- Sun Solaris 9
- Sun Solaris 9_sparc
- Sun Solaris 9_x86
- Sun Trusted Solaris 8.0.0
- Sun Trusted Solaris 8.0.0 x86
References:
- 1c239c43f521145fa8385d64a9c32243: Research on unsecurity
- Avaya: ASA-2009-428: Security Vulnerability in the w(1) Utility may Lead to Execution o
- Sun Microsystems: Solution 266348 : Security Vulnerability in the w(1) Utility may Lead to Exec
- Sun Microsystems: Sun Solaris Home Page
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