CVE-2020-28924
| 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.
|
| Publication Date |
Nov. 20, 2020, 5:15 a.m. |
| Registration Date |
Jan. 26, 2021, 11:56 a.m. |
| Last Update |
Nov. 21, 2024, 2:23 p.m. |
|
CVSS3.1 : HIGH
|
| スコア |
7.5
|
| Vector |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| 攻撃元区分(AV) |
ネットワーク |
| 攻撃条件の複雑さ(AC) |
低 |
| 攻撃に必要な特権レベル(PR) |
不要 |
| 利用者の関与(UI) |
不要 |
| 影響の想定範囲(S) |
変更なし |
| 機密性への影響(C) |
高 |
| 完全性への影響(I) |
なし |
| 可用性への影響(A) |
なし |
|
CVSS2.0 : MEDIUM
|
| Score |
5.0
|
| Vector |
AV:N/AC:L/Au:N/C:P/I:N/A:N |
| 攻撃元区分(AV) |
ネットワーク |
| 攻撃条件の複雑さ(AC) |
低 |
| 攻撃前の認証要否(Au) |
不要 |
| 機密性への影響(C) |
低 |
| 完全性への影響(I) |
なし |
| 可用性への影響(A) |
なし |
| Get all privileges. |
いいえ
|
| Get user privileges |
いいえ
|
| Get other privileges |
いいえ
|
| User operation required |
いいえ
|
Affected software configurations
| Configuration1 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:* |
|
|
|
1.53.3 |
| Configuration2 |
or higher |
or less |
more than |
less than |
| cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
|
|
|
|
Related information, measures and tools
Common Vulnerabilities List
JVN Vulnerability Information
Rclone における暗号の脆弱な PRNG の使用に関する脆弱性
| Title |
Rclone における暗号の脆弱な PRNG の使用に関する脆弱性
|
| Summary |
Rclone には、暗号の脆弱な PRNG の使用に関する脆弱性が存在します。
|
| Possible impacts |
情報を取得される可能性があります。 |
| Solution |
ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。 |
| Publication Date |
Nov. 18, 2020, midnight |
| Registration Date |
July 14, 2021, 12:23 p.m. |
| Last Update |
July 14, 2021, 12:23 p.m. |
Affected System
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
| No |
Changed Details |
Date of change |
| 1 |
[2021年07月14日] 掲載 |
July 14, 2021, 12:23 p.m. |