Vulnerability Name:

CVE-2014-3204 (CCN-92956)

Assigned:2014-04-28
Published:2014-04-28
Updated:2014-05-07
Summary:Unity before 7.2.1, as used in Ubuntu 14.04, does not properly handle keyboard shortcuts, which allows physically proximate attackers to bypass the lock screen and execute arbitrary commands, as demonstrated by right-clicking on the indicator bar and then pressing the ALT and F2 keys.
CVSS v3 Severity:4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
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): None
CVSS v2 Severity:4.4 Medium (CVSS v2 Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P)
3.2 Low (Temporal CVSS v2 Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N)
1.6 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-264
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2014-3204

Source: UBUNTU
Type: Vendor Advisory
USN-2184-1

Source: MLIST
Type: UNKNOWN
[oss-security] 20140429 Re: Ubuntu 14.04: security problem in the lock screen

Source: MLIST
Type: UNKNOWN
[oss-security] 20140503 Re: Ubuntu 14.04: security problem in the lock screen

Source: CCN
Type: OSVDB ID: 106424
Ubuntu Unity Crafted Keyboard Shortcut Screen Lock Bypass

Source: BID
Type: UNKNOWN
67117

Source: CCN
Type: BID-67117
Ubuntu 'Unity' Package Local Security Bypass Vulnerability

Source: CCN
Type: Ubuntu Bug #1313885
lock screen bypass

Source: CONFIRM
Type: Exploit
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1313885

Source: XF
Type: UNKNOWN
ubuntu-cve20143204-sec-bypass(92956)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:ayatana_project:unity:7.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:ayatana_project:unity:7.0.1:*:*:*:*:*:*:*
  • OR cpe:/a:ayatana_project:unity:7.1.0:*:*:*:*:*:*:*
  • OR cpe:/a:ayatana_project:unity:7.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:ayatana_project:unity:7.1.2:*:*:*:*:*:*:*
  • OR cpe:/a:ayatana_project:unity:7.1.3:*:*:*:*:*:*:*
  • OR cpe:/a:ayatana_project:unity:*:*:*:*:*:*:*:* (Version <= 7.2.0)
  • OR cpe:/o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.precise:def:20143204000
    V
    		CVE-2014-3204 on Ubuntu 12.04 LTS (precise) - medium.
    2014-05-06
    oval:com.ubuntu.trusty:def:20143204000
    V
    		CVE-2014-3204 on Ubuntu 14.04 LTS (trusty) - medium.
    2014-05-06
    BACK
    ayatana_project unity 7.0.0
    ayatana_project unity 7.0.1
    ayatana_project unity 7.1.0
    ayatana_project unity 7.1.1
    ayatana_project unity 7.1.2
    ayatana_project unity 7.1.3
    ayatana_project unity *
    canonical ubuntu linux 14.04