CVE-2023-46740: Insecure random string generator used for sensitive data
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.
Other sources
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.
There is no evidence of this vulnerability being exploited in the wild. It was found during a security audit carried out by Ada Logics in collaboration with OSTIF and the CNCF.
The issue has been fixed in v3.3.1. There is no other mitigation than to upgrade.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2023-46740?
CVE-2023-46740 has a medium severity level due to the potential for attackers to predict user-specific keys.
How do I fix CVE-2023-46740?
You can fix CVE-2023-46740 by upgrading CubeFS to version 3.3.1 or later.
What vulnerability does CVE-2023-46740 describe?
CVE-2023-46740 describes the use of an insecure random string generator for generating sensitive user-specific keys in CubeFS.
What are the potential impacts of CVE-2023-46740?
The potential impacts of CVE-2023-46740 include unauthorized access to user accounts due to predictable keys.
Which versions of CubeFS are affected by CVE-2023-46740?
CVE-2023-46740 affects CubeFS versions prior to 3.3.1.