CVE-2020-28924

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.
Configurations

Configuration 1 (hide)

cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

History

21 Nov 2024, 05:23

Type Values Removed Values Added
References () https://github.com/rclone/rclone/issues/4783 - Exploit, Patch, Third Party Advisory () https://github.com/rclone/rclone/issues/4783 - Exploit, Patch, Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UJIFT24Q6EFXLQZ24AER2QGFFZLMIPCD/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UJIFT24Q6EFXLQZ24AER2QGFFZLMIPCD/ -
References () https://rclone.org/downloads/ - Vendor Advisory () https://rclone.org/downloads/ - Vendor Advisory
References () https://security.gentoo.org/glsa/202107-14 - Third Party Advisory () https://security.gentoo.org/glsa/202107-14 - Third Party Advisory

07 Nov 2023, 03:21

Type Values Removed Values Added
References
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UJIFT24Q6EFXLQZ24AER2QGFFZLMIPCD/', 'name': 'FEDORA-2020-3b0bb05117', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UJIFT24Q6EFXLQZ24AER2QGFFZLMIPCD/ -

Information

Published : 2020-11-19 20:15

Updated : 2024-11-21 05:23


NVD link : CVE-2020-28924

Mitre link : CVE-2020-28924

CVE.ORG link : CVE-2020-28924


JSON object : View

Products Affected

fedoraproject

  • fedora

rclone

  • rclone
CWE
CWE-331

Insufficient Entropy

CWE-338

Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)