CVE-2020-7942
| Summary |
Previously, Puppet operated on a model that a node with a valid certificate was entitled to all information in the system and that a compromised certificate allowed access to everything in the infrastructure. When a node's catalog falls back to the `default` node, the catalog can be retrieved for a different node by modifying facts for the Puppet run. This issue can be mitigated by setting `strict_hostname_checking = true` in `puppet.conf` on your Puppet master. Puppet 6.13.0 and 5.5.19 changes the default behavior for strict_hostname_checking from false to true. It is recommended that Puppet Open Source and Puppet Enterprise users that are not upgrading still set strict_hostname_checking to true to ensure secure behavior. Affected software versions: Puppet 6.x prior to 6.13.0 Puppet Agent 6.x prior to 6.13.0 Puppet 5.5.x prior to 5.5.19 Puppet Agent 5.5.x prior to 5.5.19 Resolved in: Puppet 6.13.0 Puppet Agent 6.13.0 Puppet 5.5.19 Puppet Agent 5.5.19
|
| Publication Date |
Feb. 20, 2020, 6:15 a.m. |
| Registration Date |
Jan. 26, 2021, 12:01 p.m. |
| Last Update |
Nov. 21, 2024, 2:38 p.m. |
|
CVSS3.1 : MEDIUM
|
| スコア |
6.5
|
| Vector |
CVSS:3.1/AV:N/AC:L/PR:L/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) |
低 |
| 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 |
4.0
|
| Vector |
AV:N/AC:L/Au:S/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) |
単一 |
| 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:puppet:puppet_agent:*:*:*:*:*:*:*:* |
6.0.0 |
|
|
6.13.0 |
| cpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:* |
6.0.0 |
|
|
6.13.0 |
| cpe:2.3:a:puppet:puppet_agent:*:*:*:*:*:*:*:* |
5.5.0 |
|
|
5.5.19 |
| cpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:* |
5.5.0 |
|
|
5.5.19 |
Related information, measures and tools
Common Vulnerabilities List
JVN Vulnerability Information
Puppet における証明書検証に関する脆弱性
| Title |
Puppet における証明書検証に関する脆弱性
|
| Summary |
Puppet には、証明書検証に関する脆弱性が存在が存在します。
|
| 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 |
Feb. 18, 2020, midnight |
| Registration Date |
March 10, 2020, 2:03 p.m. |
| Last Update |
March 10, 2020, 2:03 p.m. |
Affected System
| Puppet |
|
Puppet
|
|
Puppet Agent
|
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)
Change Log
| No |
Changed Details |
Date of change |
| 1 |
[2020年03月10日]
掲載 |
March 10, 2020, 2:03 p.m. |