Linux Kernel '/proc//' Permissions Handling Local Security Bypass Vulnerability

BID:46567

Info

Linux Kernel '/proc//' Permissions Handling Local Security Bypass Vulnerability

Bugtraq ID: 46567
Class: Design Error
CVE: CVE-2011-1020
Remote: No
Local: Yes
Published: Feb 25 2011 12:00AM
Updated: Mar 19 2015 08:14AM
Credit: halfdog
Vulnerable: VMWare ESX 4.1
VMWare ESX 4.0
Ubuntu Ubuntu Linux 8.04 LTS sparc
Ubuntu Ubuntu Linux 8.04 LTS powerpc
Ubuntu Ubuntu Linux 8.04 LTS lpia
Ubuntu Ubuntu Linux 8.04 LTS i386
Ubuntu Ubuntu Linux 8.04 LTS amd64
Ubuntu Ubuntu Linux 11.04 powerpc
Ubuntu Ubuntu Linux 11.04 i386
Ubuntu Ubuntu Linux 11.04 ARM
Ubuntu Ubuntu Linux 11.04 amd64
Ubuntu Ubuntu Linux 10.10 powerpc
Ubuntu Ubuntu Linux 10.10 i386
Ubuntu Ubuntu Linux 10.10 ARM
Ubuntu Ubuntu Linux 10.10 amd64
Ubuntu Ubuntu Linux 10.04 sparc
Ubuntu Ubuntu Linux 10.04 powerpc
Ubuntu Ubuntu Linux 10.04 i386
Ubuntu Ubuntu Linux 10.04 ARM
Ubuntu Ubuntu Linux 10.04 amd64
SuSE SUSE Linux Enterprise Server Unsupported Extras 11
SuSE SUSE Linux Enterprise Server 11 SP1
SuSE SUSE Linux Enterprise High Availability Extension 11 SP1
SuSE Suse Linux Enterprise Desktop 11 SP1
Redhat MRG Realtime for RHEL 6 Server 2
Redhat Enterprise Linux Workstation Optional 6
Redhat Enterprise Linux Workstation 6
Redhat Enterprise Linux Server Optional 6
Redhat Enterprise Linux Server EUS 6.1.z
Redhat Enterprise Linux Server 6
Redhat Enterprise Linux HPC Node Optional 6
Redhat Enterprise Linux HPC Node 6
Redhat Enterprise Linux Desktop Optional 6
Redhat Enterprise Linux Desktop 6
Redhat Enterprise Linux Desktop 5 client
Redhat Enterprise Linux 5 Server
Oracle Enterprise Linux 6.2
Oracle Enterprise Linux 6
Oracle Enterprise Linux 5
OpenVZ Project OpenVZ 042stab044.17
OpenVZ Project OpenVZ 028stab095.1
Linux kernel 2.6.32 .9
Linux kernel 2.6.32
Linux kernel 2.6.24 -rc5
Linux kernel 2.6.24 -rc4
Linux kernel 2.6.23 .7
Linux kernel 2.6.23 .6
Linux kernel 2.6.23 .5
Linux kernel 2.6.23 .4
Linux kernel 2.6.23 .3
Linux kernel 2.6.23 .2
Linux kernel 2.6.23
Linux kernel 2.6.22 .7
Linux kernel 2.6.22 .6
Linux kernel 2.6.22 .5
Linux kernel 2.6.22 .4
Linux kernel 2.6.22 .3
Linux kernel 2.6.22 .2
Linux kernel 2.6.22
Linux kernel 2.6.18 .8
Linux kernel 2.6.18 .7
Linux kernel 2.6.18 .6
Linux kernel 2.6.18 .5
Linux kernel 2.6.18 .4
Linux kernel 2.6.18 .3
Linux kernel 2.6.18 .2
Linux kernel 2.6.17 .9
Linux kernel 2.6.17 .8
Linux kernel 2.6.17 .7
Linux kernel 2.6.17 .6
Linux kernel 2.6.17 .5
Linux kernel 2.6.17 .4
Linux kernel 2.6.17 .3
Linux kernel 2.6.17 .2
Linux kernel 2.6.17 .14
Linux kernel 2.6.17 .13
Linux kernel 2.6.17 .12
Linux kernel 2.6.17 .11
Linux kernel 2.6.17 .10
Linux kernel 2.6.17 .1
Linux kernel 2.6.17
Linux kernel 2.6.16 27
Linux kernel 2.6.16 .8
Linux kernel 2.6.16 .6
Linux kernel 2.6.16 .5
Linux kernel 2.6.16 .4
Linux kernel 2.6.16 .31
Linux kernel 2.6.16 .30
Linux kernel 2.6.16 .3
Linux kernel 2.6.16 .29
Linux kernel 2.6.16 .28
Linux kernel 2.6.16 .26
Linux kernel 2.6.16 .25
Linux kernel 2.6.16 .24
Linux kernel 2.6.16 .23
Linux kernel 2.6.16 .22
Linux kernel 2.6.16 .21
Linux kernel 2.6.16 .20
Linux kernel 2.6.16 .2
Linux kernel 2.6.16 .18
Linux kernel 2.6.16 .17
Linux kernel 2.6.16 .16
Linux kernel 2.6.16 .15
Linux kernel 2.6.16 .14
Linux kernel 2.6.16 .10
Linux kernel 2.6.16 .1
Linux kernel 2.6.16
Linux kernel 2.6.15 .7
Linux kernel 2.6.15 .6
Linux kernel 2.6.15 .3
Linux kernel 2.6.15 .2
Linux kernel 2.6.15 .1
Linux kernel 2.6.15
Linux kernel 2.6.14 .7
Linux kernel 2.6.14 .6
Linux kernel 2.6.14 .5
Linux kernel 2.6.14 .4
Linux kernel 2.6.14
Linux kernel 2.6.13 .5
Linux kernel 2.6.13
Linux kernel 2.6.12
Linux kernel 2.6.11 .9
Linux kernel 2.6.11 .3
Linux kernel 2.6.11 .2
Linux kernel 2.6.11 .10
Linux kernel 2.6.11 .1
Linux kernel 2.6.11
Linux kernel 2.6.10
Linux kernel 2.6.9
Linux kernel 2.6.8
Linux kernel 2.6.7
Linux kernel 2.6.6
Linux kernel 2.6.5
Linux kernel 2.6.4
Linux kernel 2.6.3
Linux kernel 2.6.2
Linux kernel 2.6.1 0
Linux kernel 2.6.8.1
+ S.u.S.E. Linux Personal 9.2 x86_64
 + S.u.S.E. Linux Personal 9.2
+ Ubuntu Ubuntu Linux 4.1 ppc
 + Ubuntu Ubuntu Linux 4.1 ia64
 + Ubuntu Ubuntu Linux 4.1 ia32
 Linux kernel 2.6.37.2
Linux kernel 2.6.35.1
Linux kernel 2.6.34.3
Linux kernel 2.6.34.2
Linux kernel 2.6.34.1
Linux kernel 2.6.32.8
Linux kernel 2.6.32.7
Linux kernel 2.6.32.6
Linux kernel 2.6.32.5
Linux kernel 2.6.32.4
Linux kernel 2.6.32.3
Linux kernel 2.6.32.2
Linux kernel 2.6.32.18
Linux kernel 2.6.32.17
Linux kernel 2.6.32.16
Linux kernel 2.6.32.15
Linux kernel 2.6.32.14
Linux kernel 2.6.32.13
Linux kernel 2.6.32.12
Linux kernel 2.6.32.11
Linux kernel 2.6.32.10
Linux kernel 2.6.32.1
Linux kernel 2.6.24-rc1
Linux kernel 2.6.24 Rc3
Linux kernel 2.6.24 Rc2
Linux kernel 2.6.23.1
Linux kernel 2.6.23 Rc2
Linux kernel 2.6.18.1
Linux kernel 2.6.16.9
Linux kernel 2.6.16.7
Linux kernel 2.6.16.19
Linux kernel 2.6.16.13
Linux kernel 2.6.16.12
Linux kernel 2.6.16.11
Linux kernel 2.6.15.5
Linux kernel 2.6.15.4
Linux kernel 2.6.14.3
Linux kernel 2.6.14.2
Linux kernel 2.6.14.1
Linux kernel 2.6.13.4
Linux kernel 2.6.13.3
Linux kernel 2.6.13.2
Linux kernel 2.6.13.1
Linux kernel 2.6.12.6
Linux kernel 2.6.12.5
Linux kernel 2.6.12.4
Linux kernel 2.6.12.3
Linux kernel 2.6.12.2
Linux kernel 2.6.12.1
Linux kernel 2.6.11.8
Linux kernel 2.6.11.7
Linux kernel 2.6.11.6
Linux kernel 2.6.11.5
Linux kernel 2.6.11.4
Linux kernel 2.6.11.12
Linux kernel 2.6.11.11
Linux kernel 2.6.0
Debian Linux 6.0 sparc
Debian Linux 6.0 s/390
Debian Linux 6.0 powerpc
Debian Linux 6.0 mips
Debian Linux 6.0 ia-64
Debian Linux 6.0 ia-32
Debian Linux 6.0 arm
Debian Linux 6.0 amd64
Avaya Voice Portal 5.1.2
Avaya Voice Portal 5.1.1
Avaya Voice Portal 5.1 SP1
Avaya Voice Portal 5.1
Avaya Voice Portal 5.0 SP2
Avaya Voice Portal 5.0 SP1
Avaya Voice Portal 5.0
Avaya Proactive Contact 5.0
Avaya IQ 5.1.1
Avaya IQ 5.1
Avaya IQ 5
Avaya IP Office Application Server 8.0
Avaya IP Office Application Server 7.0
Avaya IP Office Application Server 6.1
Avaya IP Office Application Server 6.0
Avaya Conferencing Standard Edition 6.0.1
Avaya Conferencing Standard Edition 6.0 SP1
Avaya Conferencing Standard Edition 6.0
Avaya Communication Server 1000M Signaling Server 7.6
Avaya Communication Server 1000M Signaling Server 7.5
Avaya Communication Server 1000M Signaling Server 7.0
Avaya Communication Server 1000M 7.6
Avaya Communication Server 1000M 7.5
Avaya Communication Server 1000M 7.0
Avaya Communication Server 1000E Signaling Server 7.6
Avaya Communication Server 1000E Signaling Server 7.5
Avaya Communication Server 1000E Signaling Server 7.0
Avaya Communication Server 1000E 7.6
Avaya Communication Server 1000E 7.5
Avaya Communication Server 1000E 7.0
Avaya Aura System Platform 6.0.2
Avaya Aura System Platform 6.0.1
Avaya Aura System Platform 6.0 SP3
Avaya Aura System Platform 6.0 SP2
Avaya Aura System Platform 6.0
Avaya Aura System Platform 1.0
Avaya Aura System Manager 6.1.3
Avaya Aura System Manager 6.1.2
Avaya Aura System Manager 6.1.1
Avaya Aura System Manager 6.1 SP2
Avaya Aura System Manager 6.1 Sp1
Avaya Aura System Manager 6.1
Avaya Aura System Manager 6.0 SP1
Avaya Aura System Manager 6.0
Avaya Aura System Manager 5.2
Avaya Aura Session Manager 6.1.3
Avaya Aura Session Manager 6.1.2
Avaya Aura Session Manager 6.1.1
Avaya Aura Session Manager 6.1 SP2
Avaya Aura Session Manager 6.1 Sp1
Avaya Aura Session Manager 6.1
Avaya Aura Session Manager 6.0 SP1
Avaya Aura Session Manager 6.0
Avaya Aura Session Manager 5.2
Avaya Aura Session Manager 1.1
Avaya Aura Presence Services 6.1.1
Avaya Aura Presence Services 6.1
Avaya Aura Presence Services 6.0
Avaya Aura Messaging 6.0.1
Avaya Aura Messaging 6.0
Avaya Aura Experience Portal 6.0
Avaya Aura Conferencing 6.0 Standard
Avaya Aura Conferencing 6.0 Standard
Avaya Aura Conferencing 6.0 SP1 Standard
Avaya Aura Communication Manager Utility Services 6.1
+ Avaya Communication Manager Server DEFINITY Server SI/CS
+ Avaya Communication Manager Server S8100
+ Avaya Communication Manager Server S8300
+ Avaya Communication Manager Server S8500
+ Avaya Communication Manager Server S8700
Avaya Aura Communication Manager Utility Services 6.0
Avaya Aura Communication Manager 5.2.1 SP5
+ Avaya Communication Manager Server DEFINITY Server SI/CS
+ Avaya Communication Manager Server S8100
+ Avaya Communication Manager Server S8300
+ Avaya Communication Manager Server S8500
+ Avaya Communication Manager Server S8700
Avaya Aura Communication Manager 6.0.1
Avaya Aura Communication Manager 6.0
Avaya Aura Communication Manager 5.2.1 SSP3
+ Avaya Communication Manager Server DEFINITY Server SI/CS
+ Avaya Communication Manager Server S8100
+ Avaya Communication Manager Server S8300
+ Avaya Communication Manager Server S8500
+ Avaya Communication Manager Server S8700
Avaya Aura Communication Manager 5.2.1 SSP2
Avaya Aura Communication Manager 5.2.1 SSP1
Avaya Aura Communication Manager 5.2.1 SP4
Avaya Aura Communication Manager 5.2.1 SP2
Avaya Aura Communication Manager 5.2
Avaya Aura Application Server 5300 SIP Core 2.0
Avaya Aura Application Enablement Services 5.2.1
Avaya Aura Application Enablement Services 6.1.1
Avaya Aura Application Enablement Services 6.1
Avaya Aura Application Enablement Services 5.2.3
Avaya Aura Application Enablement Services 5.2.2
Avaya Aura Application Enablement Services 5.2
Not Vulnerable: OpenVZ Project OpenVZ 042stab049.6
OpenVZ Project OpenVZ 028stab098.1
Avaya Voice Portal 5.1 SP3
Avaya Proactive Contact 5.1
Avaya Conferencing Standard Edition 7.0
Avaya Aura System Platform 6.0.3.9.3
Avaya Aura System Manager 6.2 SP3
Avaya Aura Session Manager 6.2 SP1
Avaya Aura Experience Portal 6.0 SP1
+ Avaya Communication Manager Server DEFINITY Server SI/CS
+ Avaya Communication Manager Server S8100
+ Avaya Communication Manager Server S8300
+ Avaya Communication Manager Server S8500
+ Avaya Communication Manager Server S8700
Avaya Aura Communication Manager Utility Services 6.2.5.0.15
Avaya Aura Application Server 5300 SIP Core 2.0 PB28
Avaya Aura Application Server 5300 SIP Core 2.0 PB26
Avaya Aura Application Enablement Services 6.2

Discussion

Linux Kernel '/proc//' Permissions Handling Local Security Bypass Vulnerability

The Linux kernel is prone to a local security-bypass vulnerability.



Attackers can exploit this issue to bypass security restrictions and perform unauthorized actions.

Exploit / POC

Linux Kernel '/proc//' Permissions Handling Local Security Bypass 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].

Solution / Fix

Linux Kernel '/proc//' Permissions Handling Local Security Bypass Vulnerability

Solution:
Updates are available. Please see the references for more information.

References

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