Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXJtdzUteHBnOS1qcjI5

Use of Cryptographically Weak Pseudo-Random Number Generator in Rclone

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.

Permalink: https://github.com/advisories/GHSA-rmw5-xpg9-jr29
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXJtdzUteHBnOS1qcjI5
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: almost 3 years ago
Updated: about 1 year ago

CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Identifiers: GHSA-rmw5-xpg9-jr29, CVE-2020-28924
References:

• https://nvd.nist.gov/vuln/detail/CVE-2020-28924
• https://github.com/rclone/rclone/issues/4783
• https://lists.fedoraproject.org/archives/list/[email protected]/message/UJIFT24Q6EFXLQZ24AER2QGFFZLMIPCD/
• https://security.gentoo.org/glsa/202107-14
• https://github.com/advisories/GHSA-rmw5-xpg9-jr29

Repository: https://github.com/rclone/rclone
Blast Radius: 12.3

Affected Packages