CVE-2023-46740: medium-severity vulnerability in cubefs
Insecure random string generator used for sensitive data
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.4%
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Affected products
cubefs · cubefsRelated CVEs — cubefs
In the same product, most dangerous first.
CVE-2023-46738MEDIUMAuthenticated users can crash the CubeFS servers with maliciously crafted requestsEPSS 0.6%CVE-2023-46739MEDIUMTiming attack can leak user passwordsEPSS 0.4%CVE-2023-46741MEDIUMCubeFS leaks magic secret key when starting Blobstore access serviceEPSS 0.3%CVE-2023-46742MEDIUMCubeFS leaks users key in logsEPSS 0.3%