Vulnerability Name:

CVE-2011-4105 (CCN-71120)

Assigned:2011-11-02
Published:2011-11-02
Updated:2014-03-08
Summary:LightDM before 1.0.6 allows local users to change ownership of arbitrary files via a symlink attack on ~/.Xauthority.
CVSS v3 Severity:5.1 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:1.9 Low (CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:P/A:N)
1.6 Low (Temporal CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:P/A:N/E:H/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
3.3 Low (CCN CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:P/A:P)
2.9 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:P/A:P/E:H/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Medium
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-59
Vulnerability Consequences:File Manipulation
References:Source: MITRE
Type: CNA
CVE-2011-4105

Source: CCN
Type: LightDM
Version 1.0.6 released

Source: MLIST
Type: UNKNOWN
[LightDM] 20111102 Version 1.0.6 released

Source: CCN
Type: SA46712
LightDM "xsession_setup()" Privilege Escalation Security Issue

Source: MLIST
Type: UNKNOWN
[oss-security] 20111102 Re: Re: [LightDM] Version 1.0.6 released

Source: MLIST
Type: UNKNOWN
[oss-security] 20111102 Re: [LightDM] Version 1.0.6 released

Source: MLIST
Type: UNKNOWN
[oss-security] 20111102 Re: Re: [LightDM] Version 1.0.6 released

Source: CCN
Type: OSVDB ID: 76835
LightDM src/xsession.c xsession_setup() Function /.Xauthority File Symlink Ownership Change Local Privilege Escalation

Source: CCN
Type: BID-50511
LightDM 'xsession_setup()' Symlink Attack Local Privilege Escalation Vulnerability

Source: UBUNTU
Type: UNKNOWN
USN-1262-1

Source: XF
Type: UNKNOWN
lightdm-xsessionsetup-symlink(71120)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:robert_ancell:lightdm:0.0.1:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.0.2:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.0.3:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.0.4:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.1.0:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.1.2:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.2.0:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.2.1:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.2.2:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.2.3:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.3.0:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.3.1:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.3.2:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.3.3:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.3.4:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.3.5:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.3.6:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.4.0:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.4.1:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.4.2:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.4.3:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.4.4:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.9.0:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.9.1:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.9.2:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.9.3:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.9.4:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.9.5:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.9.6:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.9.7:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:0.9.8:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:1.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:1.0.1:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:1.0.2:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:1.0.3:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:1.0.4:*:*:*:*:*:*:*
  • OR cpe:/a:robert_ancell:lightdm:*:*:*:*:*:*:*:* (Version <= 1.0.5)
  • OR cpe:/a:robert_ancell:lightdm:1.1.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20114105
    V
    		CVE-2011-4105
    2022-06-30
    oval:org.opensuse.security:def:112669
    P
    		liblightdm-gobject-1-0-1.21.1-1.1 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:106150
    P
    		liblightdm-gobject-1-0-1.21.1-1.1 on GA media (Moderate)
    2021-10-01
    oval:org.mitre.oval:def:14892
    P
    		USN-1262-1 -- Light Display Manager vulnerabilities
    2014-06-30
    oval:com.ubuntu.precise:def:20114105000
    V
    		CVE-2011-4105 on Ubuntu 12.04 LTS (precise) - medium.
    2012-02-17
    BACK
    robert_ancell lightdm 0.0.1
    robert_ancell lightdm 0.0.2
    robert_ancell lightdm 0.0.3
    robert_ancell lightdm 0.0.4
    robert_ancell lightdm 0.1.0
    robert_ancell lightdm 0.1.1
    robert_ancell lightdm 0.1.2
    robert_ancell lightdm 0.2.0
    robert_ancell lightdm 0.2.1
    robert_ancell lightdm 0.2.2
    robert_ancell lightdm 0.2.3
    robert_ancell lightdm 0.3.0
    robert_ancell lightdm 0.3.1
    robert_ancell lightdm 0.3.2
    robert_ancell lightdm 0.3.3
    robert_ancell lightdm 0.3.4
    robert_ancell lightdm 0.3.5
    robert_ancell lightdm 0.3.6
    robert_ancell lightdm 0.4.0
    robert_ancell lightdm 0.4.1
    robert_ancell lightdm 0.4.2
    robert_ancell lightdm 0.4.3
    robert_ancell lightdm 0.4.4
    robert_ancell lightdm 0.9.0
    robert_ancell lightdm 0.9.1
    robert_ancell lightdm 0.9.2
    robert_ancell lightdm 0.9.3
    robert_ancell lightdm 0.9.4
    robert_ancell lightdm 0.9.5
    robert_ancell lightdm 0.9.6
    robert_ancell lightdm 0.9.7
    robert_ancell lightdm 0.9.8
    robert_ancell lightdm 1.0.0
    robert_ancell lightdm 1.0.1
    robert_ancell lightdm 1.0.2
    robert_ancell lightdm 1.0.3
    robert_ancell lightdm 1.0.4
    robert_ancell lightdm *
    robert_ancell lightdm 1.1.0