Vulnerability Name:

CVE-2010-0923 (CCN-56296)

Assigned:2010-02-12
Published:2010-02-12
Updated:2010-03-04
Summary:Race condition in workspace/krunner/lock/lockdlg.cc in the KRunner lock module in kdebase in KDE SC 4.4.0 allows physically proximate attackers to bypass KScreenSaver screen locking and access an unattended workstation by pressing the Enter key at a certain time, related to multiple forked processes.
CVSS v3 Severity:5.9 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/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): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:6.9 Medium (CVSS v2 Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C)
5.1 Medium (Temporal CVSS v2 Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
3.4 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-362
Vulnerability Consequences:Bypass Security
References:Source: CCN
Type: KDE Bug Tracking System
Security problem - repeatedly pressing the 'return' key when the screen is locked will unlock without needing a password, or will hang kscreenlocker

Source: CONFIRM
Type: UNKNOWN
http://bugs.kde.org/show_bug.cgi?id=226449

Source: MITRE
Type: CNA
CVE-2010-0923

Source: MLIST
Type: UNKNOWN
[oss-security] 20100212 CVE Request: KDE screensaver unlock issue similar to GNOME one

Source: MLIST
Type: UNKNOWN
[oss-security] 20100212 Re: CVE Request: KDE screensaver unlock issue similar to GNOME one

Source: MLIST
Type: UNKNOWN
[oss-security] 20100212 Re: Re: CVE Request: KDE screensaver unlock issue similar to GNOME one

Source: CCN
Type: SA38600
KDE KRunner Lock Module Race Condition Weakness

Source: SECUNIA
Type: Vendor Advisory
38600

Source: CCN
Type: SECTRACK ID: 1023641
KDE KRunner Race Condition Lets Physically Local Users Bypass the Screen Lock

Source: SECTRACK
Type: UNKNOWN
1023641

Source: CONFIRM
Type: Patch
http://websvn.kde.org/?revision=1089213&view=revision

Source: CONFIRM
Type: Patch
http://websvn.kde.org/?view=revision&revision=1089241

Source: CONFIRM
Type: UNKNOWN
http://websvn.kde.org/trunk/KDE/kdebase/workspace/krunner/lock/lockdlg.cc?r1=1089213&r2=1089212&pathrev=1089213

Source: CCN
Type: KDE Web site
KDE - Latest News

Source: CCN
Type: KDE Security Advisory
KRunner lock module race condition

Source: CONFIRM
Type: UNKNOWN
http://www.kde.org/info/security/advisory-20100217-1.txt

Source: MLIST
Type: UNKNOWN
[oss-security] 20100217 Re: Re: CVE Request: KDE screensaver unlock issue similar to GNOME one

Source: CCN
Type: OSVDB ID: 62417
KDE KRunner workspace/krunner/lock/lockdlg.cc Lock Module Race Condition Password Validation Bypass

Source: CCN
Type: BID-38214
KDE Screensaver Unlock Dialog Race Condition Lock Bypass Vulnerability

Source: VUPEN
Type: Patch, Vendor Advisory
ADV-2010-0409

Source: CONFIRM
Type: UNKNOWN
https://bugs.kde.org/show_bug.cgi?id=217882

Source: CONFIRM
Type: UNKNOWN
https://bugzilla.novell.com/show_bug.cgi?id=579280

Source: XF
Type: UNKNOWN
kde-screensaver-security-bypass(56296)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:kde:kde_sc:4.4.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    kde kde sc 4.4.0