Vulnerability Name:

CVE-2020-28924 (CCN-192113)

Assigned:2020-11-18
Published:2020-11-18
Updated:2022-04-26
Summary: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 v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-331
CWE-338
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2020-28924

Source: XF
Type: UNKNOWN
rclone-cve202028924-info-disc(192113)

Source: CCN
Type: Rclone GIT Repository
Rclone generating weak passwords - CVE-2020-28924 #4783

Source: MISC
Type: Exploit, Patch, Third Party Advisory
https://github.com/rclone/rclone/issues/4783

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2020-3b0bb05117

Source: MISC
Type: Vendor Advisory
https://rclone.org/downloads/

Source: GENTOO
Type: Third Party Advisory
GLSA-202107-14

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2020-28924

Vulnerable Configuration:Configuration 1:
  • cpe:/a:rclone:rclone:*:*:*:*:*:*:*:* (Version < 1.53.3)

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:33:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:rclone:rclone:1.53.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:202028924
    V
    		CVE-2020-28924
    2022-06-30
    oval:org.opensuse.security:def:113328
    P
    		rclone-1.55.1-1.3 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:64635
    P
    		Security update for python-pip (Moderate)
    2021-12-13
    oval:org.opensuse.security:def:106737
    P
    		Security update for MozillaFirefox (Important)
    2021-11-10
    oval:org.opensuse.security:def:64523
    P
    		Security update for libxml2 (Moderate)
    2021-06-09
    oval:org.opensuse.security:def:100272
    P
    		 (Important)
    2021-04-28
    oval:org.opensuse.security:def:74701
    P
    		Security update for go1.15 (Moderate)
    2021-03-24
    oval:org.opensuse.security:def:11175
    P
    		Security update for rclone (Moderate)
    2021-02-10
    oval:org.opensuse.security:def:103134
    P
    		Security update for rclone (Moderate)
    2021-02-10
    oval:org.opensuse.security:def:109791
    P
    		Security update for rclone (Moderate)
    2021-02-10
    oval:org.opensuse.security:def:96444
    P
    		Security update for rclone (Moderate)
    2021-02-10
    oval:org.opensuse.security:def:11020
    P
    		Security update for rclone (Moderate)
    2020-12-05
    oval:org.opensuse.security:def:93559
    P
    		Security update for rclone (Moderate)
    2020-12-05
    oval:org.opensuse.security:def:65099
    P
    		Security update for log4j (Important)
    2020-12-01
    oval:org.opensuse.security:def:75174
    P
    		Security update for rclone (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:74575
    P
    		Security update for libX11 (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:64987
    P
    		Security update for openldap2 (Important)
    2020-12-01
    oval:org.opensuse.security:def:75041
    P
    		Security update for webkit2gtk3 (Important)
    2020-12-01
    oval:org.opensuse.security:def:110325
    P
    		Security update for rclone (Moderate)
    2020-11-26
    oval:org.opensuse.security:def:110869
    P
    		Security update for rclone (Moderate)
    2020-11-24
    BACK
    rclone rclone *
    fedoraproject fedora 33
    rclone rclone 1.53.2