cloudflared prior 2020.8.1 on Windows Configuration File privileges management

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in cloudflared on Windows. Affected is an unknown function of the component Configuration File Handler. The manipulation leads to privileges management. This vulnerability is uniquely identified as CVE-2020-24356. Local access is required to approach this attack. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in cloudflared on Windows (Cloud Software). This issue affects some unknown functionality of the component Configuration File Handler. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

`cloudflared` versions prior to 2020.8.1 contain a local privilege escalation vulnerability on Windows systems. When run on a Windows system, `cloudflared` searches for configuration files which could be abused by a malicious entity to execute commands as a privileged user. Version 2020.8.1 fixes this issue.

The weakness was disclosed 10/02/2020 (GitHub Repository). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2020-24356 since 08/14/2020. The exploitation is known to be difficult. Attacking locally is a requirement. A simple authentication is required for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 2020.8.1 eliminates this vulnerability.

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Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.2

VulDB Base Score: 4.5
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.4
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: cloudflared 2020.8.1

Timelineinfo

08/14/2020 🔍
10/02/2020 +49 days 🔍
10/02/2020 +0 days 🔍
11/16/2020 +45 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2020-24356 (🔍)
GCVE (CVE): GCVE-0-2020-24356
GCVE (VulDB): GCVE-100-162227

Entryinfo

Created: 10/02/2020 20:10
Updated: 11/16/2020 07:10
Changes: 10/02/2020 20:10 (38), 10/02/2020 20:15 (12), 11/15/2020 10:16 (1), 11/16/2020 07:10 (7)
Complete: 🔍
Cache ID: 216::103

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