CVE-2024-0985
Description
A flaw was found in PostgreSQL. A late privilege drop in REFRESH MATERIALIZED VIEW CONCURRENTLY in PostgreSQL can allow an object creator to execute arbitrary SQL functions as the command issuer. The command intends to run SQL functions as the owner of the materialized view, enabling a safe refresh of untrusted materialized views. The attack requires luring the victim, a superuser or member of one of the attacker's roles, into running REFRESH MATERIALIZED VIEW CONCURRENTLY on the attacker's materialized view.
Statement
This PostgreSQL vulnerability poses a significant risk due to its potential for unauthorized access and manipulation of data. Essentially, it allows attackers to execute arbitrary SQL functions using the REFRESH MATERIALIZED VIEW CONCURRENTLY command, especially when the victim is a superuser or holds a role within the attacker's control. By luring victims into running this command on a maliciously crafted materialized view, attackers can exploit the system. This could lead to serious consequences, such as data breaches or data corruption, compromising the integrity and confidentiality of the database.
Mitigation
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
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 | 8 | 8 |
| Attack Vector | Network | Network | Network |
| Attack Complexity | Low | Low | Low |
| Privileges Required | Low | Low | Low |
| User Interaction | Required | Required | Required |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality | High | High | High |
| Integrity Impact | High | High | High |
| Availability Impact | High | High | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Access Control
Technical Impact: Gain Privileges or Assume Identity
If privileges are not dropped, neither are access rights of the user. Often these rights can be prevented from being dropped.
Access Control,Non-Repudiation
Technical Impact: Gain Privileges or Assume Identity; Hide Activities
If privileges are not dropped, in some cases the system may record actions as the user which is being impersonated rather than the impersonator.
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