CVE-2020-28924

Published: Nov 19, 2020 Last Modified: Nov 21, 2024 EU-VD ID: EUVD-2021-1401 Aliases: GHSA-rmw5-xpg9-jr29
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: none
MEDIUM 5,0
Source: [email protected]
Access Vector: network
Access Complexity: low
Authentication: none
Confidentiality: partial
Integrity: none
Availability: none

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0035
Percentile
0,6th
Updated

EPSS Score Trend (Last 90 Days)

331

Insufficient Entropy

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Other
Potential Impacts:
Bypass Protection Mechanism Other
Applicable Platforms
All platforms may be affected
View CWE Details
338

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

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Bypass Protection Mechanism
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: Medium
View CWE Details
Application

Rclone by Rclone

Product Information
Vendor Rclone
Product Rclone
Version Range Affected
To 1.53.3 (exclusive)
cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Fedora by Fedoraproject

Product Information
Vendor Fedoraproject
Product Fedora
Version 33
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/rclone/rclone/issues/4783
Exploit Patch Third Party Advisory
https://github.com/rclone/rclone/issues/4783
https://lists.fedoraproject.org/archives/list/package-annou…
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapr…
https://rclone.org/downloads/
Vendor Advisory
https://rclone.org/downloads/
https://security.gentoo.org/glsa/202107-14
Third Party Advisory
https://security.gentoo.org/glsa/202107-14
https://github.com/rclone/rclone/issues/4783
Exploit Patch Third Party Advisory
https://github.com/rclone/rclone/issues/4783
https://lists.fedoraproject.org/archives/list/package-annou…
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapr…
https://rclone.org/downloads/
Vendor Advisory
https://rclone.org/downloads/
https://security.gentoo.org/glsa/202107-14
Third Party Advisory
https://security.gentoo.org/glsa/202107-14