CVE-2019-2386
Description
A session expiration flaw was discovered in MongoDB. After a user is deleted, the session tokens for that user do not expire and can be reused if a new user is created with the same name. An attacker with access to a MongoDB user could exploit this flaw to gain access to the new user account.
Statement
The supported versions of Red Hat Satellite do not ship the affected MongoDB and are only consumed through Red Hat Software Collections (RHSCL) repository. However, the product is not affected by the vulnerability because the usage of MongoDB does not add or delete users on a recurring basis.
This issue does affect the versions of MongoDB as shipped with Red Hat Update Infrastructure for Cloud Providers, but the service is only accessible by users who already have access to the Red Hat Update Appliance (RHUA).
Mitigation
This vulnerability can be mitigated by either of two administrative practices:
* Whenever a user is deleted, restart all nodes where that user may have an active session
* When a user is deleted, ensure than a new user with the same name will never be created
If your mongodb instance is deployed in a situation where users never need to be deleted, or one of the above mitigations can be applied, this vulnerability can not be exploited.
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).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.1 | 7.1 | N/A |
| Attack Vector | Network | Network | N/A |
| Attack Complexity | High | High | N/A |
| Privileges Required | Low | Low | N/A |
| User Interaction | Required | Required | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | High | High | N/A |
| Integrity Impact | High | High | N/A |
| Availability Impact | High | High | N/A |
Vector
Red Hat: CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Access Control
Technical Impact: Bypass Protection Mechanism
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