8.8
HIGH
CVE-2023-45151
Nextcloud OAuth2 Token Storage Vulnerability
Description

Nextcloud server is an open source home cloud platform. Affected versions of Nextcloud stored OAuth2 tokens in plaintext which allows an attacker who has gained access to the server to potentially elevate their privilege. This issue has been addressed and users are recommended to upgrade their Nextcloud Server to version 25.0.8, 26.0.3 or 27.0.1. There are no known workarounds for this vulnerability.

INFO

Published Date :

Oct. 16, 2023, 7:15 p.m.

Last Modified :

Oct. 20, 2023, 12:18 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2023-45151 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 Nextcloud nextcloud_server
2 Nextcloud notes
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-2023-45151.

URL Resource
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hhgv-jcg9-p4m9 Vendor Advisory
https://github.com/nextcloud/server/pull/38398 Issue Tracking Patch
https://hackerone.com/reports/1994324 Permissions Required

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).

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

The following list is the news that have been mention CVE-2023-45151 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-45151 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]

    Oct. 20, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hhgv-jcg9-p4m9 No Types Assigned https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hhgv-jcg9-p4m9 Vendor Advisory
    Changed Reference Type https://github.com/nextcloud/server/pull/38398 No Types Assigned https://github.com/nextcloud/server/pull/38398 Issue Tracking, Patch
    Changed Reference Type https://hackerone.com/reports/1994324 No Types Assigned https://hackerone.com/reports/1994324 Permissions Required
    Added CWE NIST CWE-312
    Added CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:* versions from (including) 25.0.0 up to (excluding) 25.0.8 *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* versions from (including) 25.0.0 up to (excluding) 25.0.8 *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:* versions from (including) 26.0.0 up to (excluding) 26.0.3 *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* versions from (including) 26.0.0 up to (excluding) 26.0.3 *cpe:2.3:a:nextcloud:nextcloud_server:27.0.0:*:*:*:-:*:*:* *cpe:2.3:a:nextcloud:nextcloud_server:27.0.0:*:*:*:enterprise:*:*:*
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-2023-45151 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-2023-45151 weaknesses.

Exploit Prediction

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

0.12 }} 0.04%

score

0.46268

percentile

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