CVE-2023-46740: cubefs — Fix

Description

CubeFS is an open-source cloud-native file storage system. Prior to version 3.3.1, CubeFS used an insecure random string generator to generate user-specific, sensitive keys used to authenticate users in a CubeFS deployment. This could allow an attacker to predict and/or guess the generated string and impersonate a user thereby obtaining higher privileges. When CubeFS creates new users, it creates a piece of sensitive information for the user called the “accessKey”. To create the "accesKey", CubeFS uses an insecure string generator which makes it easy to guess and thereby impersonate the created user. An attacker could leverage the predictable random string generator and guess a users access key and impersonate the user to obtain higher privileges. The issue has been fixed in v3.3.1. There is no other mitigation than to upgrade.

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CVSS v3.1 Score

6.5

MEDIUM

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

Weakness Type (CWE)

CWE-330 CWE-330

Affected Products

Vendor	Product	Versions
linuxfoundation	cubefs	< 3.3.1

References

Advisories & Patches

https://github.com/cubefs/cubefs/commit/8555c6402794cabdf2cc025c8bea1576122c07ba https://github.com/cubefs/cubefs/commit/8555c6402794cabdf2cc025c8bea1576122c07ba

Other References

https://github.com/cubefs/cubefs/security/advisories/GHSA-4248-p65p-hcrm https://github.com/cubefs/cubefs/security/advisories/GHSA-4248-p65p-hcrm

Frequently Asked Questions

What is CVE-2023-46740? +

CubeFS is an open-source cloud-native file storage system. Prior to version 3.3.1, CubeFS used an insecure random string generator to generate user-specific, sensitive keys used to authenticate users in a CubeFS deployment. This could allow an attacker to predict and/or guess the generated string and impersonate a user thereby obtaining higher privileges. When CubeFS creates new users, it creates a piece of sensitive information for the user called the “accessKey”. To create the "accesKey", CubeFS uses an insecure string generator which makes it easy to guess and thereby impersonate the created user. An attacker could leverage the predictable random string generator and guess a users access key and impersonate the user to obtain higher privileges. The issue has been fixed in v3.3.1. There is no other mitigation than to upgrade. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2023-46740? +

CVE-2023-46740 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-46740? +

CVE-2023-46740 affects products from linuxfoundation, specifically: cubefs. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-46740? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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