7.8
HIGH
CVE-2023-30840
"Fluid CSI Node-Modifying Privilege Escalation Vulnerability"
Description

Fluid is an open source Kubernetes-native distributed dataset orchestrator and accelerator for data-intensive applications. Starting in version 0.7.0 and prior to version 0.8.6, if a malicious user gains control of a Kubernetes node running fluid csi pod (controlled by the `csi-nodeplugin-fluid` node-daemonset), they can leverage the fluid-csi service account to modify specs of all the nodes in the cluster. However, since this service account lacks `list node` permissions, the attacker may need to use other techniques to identify vulnerable nodes. Once the attacker identifies and modifies the node specs, they can manipulate system-level-privileged components to access all secrets in the cluster or execute pods on other nodes. This allows them to elevate privileges beyond the compromised node and potentially gain full privileged access to the whole cluster. To exploit this vulnerability, the attacker can make all other nodes unschedulable (for example, patch node with taints) and wait for system-critical components with high privilege to appear on the compromised node. However, this attack requires two prerequisites: a compromised node and identifying all vulnerable nodes through other means. Version 0.8.6 contains a patch for this issue. As a workaround, delete the `csi-nodeplugin-fluid` daemonset in `fluid-system` namespace and avoid using CSI mode to mount FUSE file systems. Alternatively, using sidecar mode to mount FUSE file systems is recommended.

INFO

Published Date :

May 8, 2023, 6:15 p.m.

Last Modified :

May 15, 2023, 6:32 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Public PoC/Exploit Available at Github

CVE-2023-30840 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2023-30840 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linuxfoundation fluid
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-30840.

URL Resource
https://github.com/fluid-cloudnative/fluid/commit/77c8110a3d1ec077ae2bce6bd88d296505db1550 Patch
https://github.com/fluid-cloudnative/fluid/commit/91c05c32db131997b5ca065e869c9918a125c149 Patch
https://github.com/fluid-cloudnative/fluid/releases/tag/v0.8.6 Release Notes
https://github.com/fluid-cloudnative/fluid/security/advisories/GHSA-93xx-cvmc-9w3v Mitigation Patch Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Tutorial activities from week 4 to week 10.

Updated: 1 year, 4 months ago
0 stars 0 fork 0 watcher
Born at : May 21, 2023, 1:07 a.m. This repo has been linked 3 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-30840 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-30840 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    May. 15, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/fluid-cloudnative/fluid/commit/77c8110a3d1ec077ae2bce6bd88d296505db1550 No Types Assigned https://github.com/fluid-cloudnative/fluid/commit/77c8110a3d1ec077ae2bce6bd88d296505db1550 Patch
    Changed Reference Type https://github.com/fluid-cloudnative/fluid/commit/91c05c32db131997b5ca065e869c9918a125c149 No Types Assigned https://github.com/fluid-cloudnative/fluid/commit/91c05c32db131997b5ca065e869c9918a125c149 Patch
    Changed Reference Type https://github.com/fluid-cloudnative/fluid/releases/tag/v0.8.6 No Types Assigned https://github.com/fluid-cloudnative/fluid/releases/tag/v0.8.6 Release Notes
    Changed Reference Type https://github.com/fluid-cloudnative/fluid/security/advisories/GHSA-93xx-cvmc-9w3v No Types Assigned https://github.com/fluid-cloudnative/fluid/security/advisories/GHSA-93xx-cvmc-9w3v Mitigation, Patch, Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:a:linuxfoundation:fluid:*:*:*:*:*:*:*:* versions from (including) 0.7.0 up to (excluding) 0.8.6
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-30840 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-30840 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} -0.00%

score

0.05699

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
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