Vulnerability Description
An issue was discovered in Rclone before 1.53.3. Due to the use of a weak random number generator, the password generator has been producing weak passwords with much less entropy than advertised. The suggested passwords depend deterministically on the time the second rclone was started. This limits the entropy of the passwords enormously. These passwords are often used in the crypt backend for encryption of data. It would be possible to make a dictionary of all possible passwords with about 38 million entries per password length. This would make decryption of secret material possible with a plausible amount of effort. NOTE: all passwords generated by affected versions should be changed.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Rclone | Rclone | < 1.53.3 |
| Fedoraproject | Fedora | 33 |
Related Weaknesses (CWE)
References
- https://github.com/rclone/rclone/issues/4783ExploitPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://rclone.org/downloads/Vendor Advisory
- https://security.gentoo.org/glsa/202107-14Third Party Advisory
- https://github.com/rclone/rclone/issues/4783ExploitPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://rclone.org/downloads/Vendor Advisory
- https://security.gentoo.org/glsa/202107-14Third Party Advisory
FAQ
What is CVE-2020-28924?
CVE-2020-28924 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue was discovered in Rclone before 1.53.3. Due to the use of a weak random number generator, the password generator has been producing weak passwords with much less entropy than advertised. The ...
How severe is CVE-2020-28924?
CVE-2020-28924 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-28924?
Check the references section above for vendor advisories and patch information. Affected products include: Rclone Rclone, Fedoraproject Fedora.