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Leakage of support information due to inadequate access control

Moderate
aHenryJard published GHSA-42mm-c8x3-g5q6 Dec 24, 2024

Package

OpenCTI

Affected versions

<= 6.2.18

Patched versions

6.3.0

Description

Summary

General users can access information that can only be accessed by users with access privileges to admin and support information (SETTINGS_SUPPORT).

Details

General users can access information that can only be accessed by users with access privileges to admin and support information (SETTINGS_SUPPORT). This is due to inadequate access control for support information (http://<opencti_domain>/storage/get/support/UUID/UUID.zip), and that the UUID is available to general users using an attached query (logs query).

PoC

1, Log in as admin, click GENERATE SUPPORT PAKAGE from the Support screen, and download the generated package.
2. Log in as a general user and use the logs query to obtain the path to the package file.
3. Access the path as a general user to download the file. Through that file, I can access sensitive information such as software version information and error details

logs_query.txt

information_disclosure_support_file.mp4

Impact

An attacker with general user privileges can gain unauthorized access to software and OS version information and so on that can only be accessed by admin. This allows them to collect information necessary for their additional attacks, which may lead to further damage.

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVE ID

CVE-2024-45805

Credits