9.8
CRITICAL
CVE-2023-46740
CubeFS Predictable Access Key Impersonation Vulnerability
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.

INFO

Published Date :

Jan. 3, 2024, 5:15 p.m.

Last Modified :

Jan. 10, 2024, 5:45 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-46740 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linuxfoundation cubefs
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-46740.

URL Resource
https://github.com/cubefs/cubefs/commit/8555c6402794cabdf2cc025c8bea1576122c07ba Patch
https://github.com/cubefs/cubefs/security/advisories/GHSA-4248-p65p-hcrm Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-46740 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-46740 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jan. 10, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/cubefs/cubefs/commit/8555c6402794cabdf2cc025c8bea1576122c07ba No Types Assigned https://github.com/cubefs/cubefs/commit/8555c6402794cabdf2cc025c8bea1576122c07ba Patch
    Changed Reference Type https://github.com/cubefs/cubefs/security/advisories/GHSA-4248-p65p-hcrm No Types Assigned https://github.com/cubefs/cubefs/security/advisories/GHSA-4248-p65p-hcrm Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:linuxfoundation:cubefs:*:*:*:*:*:*:*:* versions up to (excluding) 3.3.1
  • CVE Received by [email protected]

    Jan. 03, 2024

    Action Type Old Value New Value
    Added 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.
    Added Reference GitHub, Inc. https://github.com/cubefs/cubefs/security/advisories/GHSA-4248-p65p-hcrm [No types assigned]
    Added Reference GitHub, Inc. https://github.com/cubefs/cubefs/commit/8555c6402794cabdf2cc025c8bea1576122c07ba [No types assigned]
    Added CWE GitHub, Inc. CWE-330
    Added CVSS V3.1 GitHub, Inc. AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-46740 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-46740 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.09 }} 0.05%

score

0.38406

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability