CVE-2023-28848
Nextcloud User_OIDC Token Bypass
Description
user_oidc is the OIDC connect user backend for Nextcloud, an open source collaboration platform. A vulnerability in versions 1.0.0 until 1.3.0 effectively allowed an attacker to bypass the state protection as they could just copy the expected state token from the first request to their second request. Users should upgrade user_oidc to 1.3.0 to receive a patch for the issue. No known workarounds are available.
INFO
Published Date :
April 4, 2023, 1:15 p.m.
Last Modified :
April 10, 2023, 5:37 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.5
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2023-28848
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.
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-2023-28848.
| URL | Resource |
|---|---|
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-52hv-xw32-wf7f | Vendor Advisory |
| https://github.com/nextcloud/user_oidc/pull/580 | Patch Vendor Advisory |
| https://hackerone.com/reports/1878381 | Third Party 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-28848 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-28848 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]
Apr. 10, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N Changed Reference Type https://github.com/nextcloud/security-advisories/security/advisories/GHSA-52hv-xw32-wf7f No Types Assigned https://github.com/nextcloud/security-advisories/security/advisories/GHSA-52hv-xw32-wf7f Vendor Advisory Changed Reference Type https://github.com/nextcloud/user_oidc/pull/580 No Types Assigned https://github.com/nextcloud/user_oidc/pull/580 Patch, Vendor Advisory Changed Reference Type https://hackerone.com/reports/1878381 No Types Assigned https://hackerone.com/reports/1878381 Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:nextcloud:user_oidc:*:*:*:*:*:*:*:* versions from (including) 1.0.0 up to (excluding) 1.3.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-28848 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-2023-28848
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.26997
percentile