GNOME Shell 3.9.x Lock Screen security check

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in GNOME Shell 3.9.x. This affects an unknown part of the component Lock Screen. The manipulation leads to security check. Additionally, an exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in GNOME Shell 3.9.x. This issue affects an unknown functionality of the component Lock Screen. The manipulation with an unknown input leads to a security check vulnerability. Using CWE to declare the problem leads to CWE-358. The product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique. Impacted is confidentiality, and integrity.

The weakness was released 09/13/2013 as 708051 as confirmed advisory (Website). It is possible to read the advisory at bugzilla.gnome.org. The public release was coordinated with GNOME. The exploitation is known to be difficult. Attacking locally is a requirement. The successful exploitation needs a simple authentication. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1211 according to MITRE ATT&CK.

The exploit is available at bugzilla.gnome.org. It is declared as proof-of-concept.

Upgrading to version 3.10.1 eliminates this vulnerability. A possible mitigation has been published 2 days after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at OSVDB (98915†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

GNOME

Name

Shell

Version

3.9.x

License

open-source

Website

Vendor: https://www.gnome.org/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.6
VulDB Meta Temp Score: 3.3

VulDB Base Score: 3.6
VulDB Temp Score: 3.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Security check
CWE: CWE-358
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Shell 3.10.1

Timelineinfo

09/13/2013 🔍
09/15/2013 +2 days 🔍
10/28/2013 +43 days 🔍
03/25/2019 +1974 days 🔍

Sourcesinfo

Vendor: gnome.org

Advisory: 708051
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-10991
OSVDB: 98915

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

Entryinfo

Created: 10/28/2013 10:46
Updated: 03/25/2019 07:29
Changes: 10/28/2013 10:46 (49), 03/25/2019 07:29 (1)
Complete: 🔍
Committer:
Cache ID: 216:F22:103