CVE-2020-24356

CVSS V2 Medium 4.6 CVSS V3 High 7.8

Description

`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.

Overview

CVE ID
CVE-2020-24356

Assigner
cna@cloudflare.com

Vulnerability Status
Analyzed

Published Version
2020-10-02T15:15:12

Last Modified Date
2021-07-21T11:39:23

Weakness Enumerations

CWE	URL
CWE-427	http://cwe.mitre.org/data/definitions/427.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:cloudflare:cloudflared::::::::	1	OR		2020.8.1

CVSS Version 2

Version
2.0

Vector String
AV:L/AC:L/Au:N/C:P/I:P/A:P

Access Vector
LOCAL

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
4.6

Severity
MEDIUM

Exploitability Score
3.9

Impact Score
6.4

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
7.8

Base Severity
HIGH

Exploitability Score
1.8

Impact Score
5.9

References

Reference URL	Reference Tags
https://github.com/cloudflare/cloudflared/security/advisories/GHSA-hgwp-4vp4-qmm2	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2020-24356
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24356

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:03:51				Added to TrackCVE
2022-12-04 23:40:42	2020-10-02T15:15Z	2020-10-02T15:15:12	CVE Published Date	updated
2022-12-04 23:40:42		2021-07-21T11:39:23	CVE Modified Date	updated
2022-12-04 23:40:42		Analyzed	Vulnerability Status	updated