CVE-2020-16250
Description
A flaw was found in Vault and Vault Enterprise (“Vault”). In the affected versions of Vault, with the AWS Auth Method configured and under certain circumstances, the values relied upon by Vault to validate AWS IAM identities and roles may be manipulated and bypass authentication.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 8.2 | 8.2 | N/A |
| Attack Vector | Network | Network | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | None | None | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | Low | Low | N/A |
| Integrity Impact | High | High | N/A |
| Availability Impact | None | None | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Red Hat CVSS v3 Score Explanation
Confidentiality, Integrity, and Availability metrics are Low, because:
- Successful exploitation may lead to some loss of confidentiality, but it's not under the attacker's control what information will be obtained.
- An attacker is not able to determine if successful exploitation will affect the availability of the target environment.
Understanding the Weakness (CWE)
Access Control
Technical Impact: Bypass Protection Mechanism; Gain Privileges or Assume Identity
This weakness can allow an attacker to access resources which are not otherwise accessible without proper authentication.
Frequently Asked Questions
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