KDE kauth/kdelibs access control

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

A vulnerability, which was classified as critical, has been found in KDE kauth and kdelibs (affected version unknown). Affected by this issue is an unknown functionality. 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. CVE summarizes:

KDE kdelibs before 4.14.32 and KAuth before 5.34 allow local users to gain root privileges by spoofing a callerID and leveraging a privileged helper app.

The bug was discovered 05/15/2017. The weakness was released 05/10/2017 by Sebastian Krahmer as advisory-20170510-1.txt as confirmed security advisory (Website). The advisory is shared for download at kde.org. This vulnerability is handled as CVE-2017-8422 since 05/02/2017. The attack needs to be approached locally. The successful exploitation needs a simple authentication. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 100328 (CentOS 7 : kdelibs (CESA-2017:1264)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176028 (Debian Security Update for kde4libs (DSA 3849-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (100328) and Exploit-DB (42053). Entry connected to this vulnerability is available at 101447.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.8
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
ATT&CK: T1068

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 100328
Nessus Name: CentOS 7 : kdelibs (CESA-2017:1264)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703849
OpenVAS Name: Debian Security Advisory DSA 3849-1 (kde4libs - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Patch: cgit.kde.org

Timelineinfo

05/02/2017 🔍
05/10/2017 +8 days 🔍
05/10/2017 +0 days 🔍
05/15/2017 +5 days 🔍
05/15/2017 +0 days 🔍
05/16/2017 +1 days 🔍
05/17/2017 +1 days 🔍
05/22/2017 +5 days 🔍
05/23/2017 +1 days 🔍
12/06/2022 +2023 days 🔍

Sourcesinfo

Vendor: kde.org

Advisory: advisory-20170510-1.txt
Researcher: Sebastian Krahmer
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-8422 (🔍)
OVAL: 🔍

SecurityTracker: 1038480
SecurityFocus: 98412 - KDE KAuth CVE-2017-8422 Local Privilege Escalation Vulnerability
OSVDB: - CVE-2017-8422 - KDE - Multiple Products - Privilege Escalation Issue

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 05/16/2017 12:37
Updated: 12/06/2022 14:19
Changes: 05/16/2017 12:37 (79), 09/28/2020 20:21 (10), 12/06/2022 14:19 (4)
Complete: 🔍

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