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ubuntucveUbuntu.comUB:CVE-2020-28924
HistoryNov 19, 2020 - 12:00 a.m.

CVE-2020-28924

2020-11-1900:00:00
ubuntu.com
ubuntu.com
12

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

50.4%

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.

Bugs

Notes

Author Note
sbeattie debian asserts this was introduced in upstream in 193c30d57038017370594d5bc8ee9bc32580ddf2 v1.49; needs verification.
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchrclone< anyUNKNOWN
ubuntu20.04noarchrclone< anyUNKNOWN

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

50.4%