Dell Client Platform OS Recovery Image insecure inherited permissions

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.
7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Dell Client Platform. It has been rated as critical. This impacts an unknown function of the component OS Recovery Image. This manipulation causes insecure inherited permissions. This vulnerability is registered as CVE-2020-5343. The attack needs to be launched locally. No exploit is available.

Detailsinfo

A vulnerability was found in Dell Client Platform (version unknown). It has been declared as critical. Affected by this vulnerability is an unknown function of the component OS Recovery Image. The manipulation with an unknown input leads to a insecure inherited permissions vulnerability. The CWE definition for the vulnerability is CWE-277. A product defines a set of insecure permissions that are inherited by objects that are created by the program. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Dell Client platforms restored using a Dell OS recovery image downloaded before December 20, 2019, may contain an insecure inherited permissions vulnerability. A local authenticated malicious user with low privileges could exploit this vulnerability to gain unauthorized access on the root folder.

The weakness was published 05/04/2020. This vulnerability is known as CVE-2020-5343 since 01/03/2020. Attacking locally is a requirement. The successful exploitation requires a single authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/05/2020). The attack technique deployed by this issue is T1222 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Insecure inherited permissions
CWE: CWE-277 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/03/2020 🔍
05/04/2020 +122 days 🔍
05/05/2020 +1 days 🔍
10/15/2020 +163 days 🔍

Sourcesinfo

Vendor: dell.com

Status: Not defined

CVE: CVE-2020-5343 (🔍)
GCVE (CVE): GCVE-0-2020-5343
GCVE (VulDB): GCVE-100-154735

Entryinfo

Created: 05/05/2020 09:45
Updated: 10/15/2020 10:41
Changes: 05/05/2020 09:45 (35), 05/05/2020 09:50 (11), 10/15/2020 10:41 (1)
Complete: 🔍
Cache ID: 216::103

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