sddm up to 0.12 KDE Crash daemon/Greeter.cpp access control

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in sddm up to 0.12. The impacted element is an unknown function of the file daemon/Greeter.cpp of the component KDE Crash Handler. The manipulation leads to access control. This vulnerability is referenced as CVE-2015-0856. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in sddm up to 0.12 and classified as problematic. This issue affects some unknown processing of the file daemon/Greeter.cpp of the component KDE Crash Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

daemon/Greeter.cpp in sddm before 0.13.0 does not properly disable the KDE crash handler, which allows local users to gain privileges by crashing a greeter when using certain themes, as demonstrated by the plasma-workspace breeze theme.

The weakness was published 11/24/2015 (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2015-0856 since 01/07/2015. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 89373 (Fedora 23 : sddm-0.12.0-5.fc23 (2015-b15b90eeaa)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l.

Upgrading to version 0.13.0 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (89373), SecurityFocus (BID 77099†) and Vulnerability Center (SBV-54709†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 89373
Nessus Name: Fedora 23 : sddm-0.12.0-5.fc23 (2015-b15b90eeaa)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for sddm FEDORA-2015-9
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: sddm 0.13.0
Patch: github.com

Timelineinfo

01/07/2015 🔍
09/27/2015 +263 days 🔍
10/14/2015 +17 days 🔍
10/31/2015 +17 days 🔍
11/24/2015 +24 days 🔍
11/24/2015 +0 days 🔍
11/25/2015 +1 days 🔍
12/01/2015 +6 days 🔍
03/04/2016 +94 days 🔍
06/27/2022 +2306 days 🔍

Sourcesinfo

Product: github.com

Advisory: FEDORA-2015-b15b90eeaa
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-0856 (🔍)
GCVE (CVE): GCVE-0-2015-0856
GCVE (VulDB): GCVE-100-79295
SecurityFocus: 77099 - SDDM 'Greeter.cpp' Local Denial of Service Vulnerability
Vulnerability Center: 54709 - sddm before 0.13.0 Local Code Execution in daemon/Greeter.cpp, Medium

Entryinfo

Created: 11/25/2015 09:53
Updated: 06/27/2022 16:20
Changes: 11/25/2015 09:53 (52), 05/09/2018 11:45 (19), 06/27/2022 16:05 (4), 06/27/2022 16:12 (1), 06/27/2022 16:20 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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