7.5
HIGH
CVE-2023-42450
Mastodon HTTP Request Injection Vulnerability
Description

Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 4.2.0-beta1 and prior to version 4.2.0-rc2, by crafting specific input, attackers can inject arbitrary data into HTTP requests issued by Mastodon. This can be used to perform confused deputy attacks if the server configuration includes `ALLOWED_PRIVATE_ADDRESSES` to allow access to local exploitable services. Version 4.2.0-rc2 has a patch for the issue.

INFO

Published Date :

Sept. 19, 2023, 4:15 p.m.

Last Modified :

Feb. 16, 2024, 8:35 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-42450 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 Joinmastodon mastodon
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-2023-42450.

URL Resource
https://github.com/mastodon/mastodon/commit/94893cf24fc95b32cc7a756262acbe008c20a9d2 Patch
https://github.com/mastodon/mastodon/security/advisories/GHSA-hcqf-fw2r-52g4 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).

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

The following list is the news that have been mention CVE-2023-42450 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-42450 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
  • Modified Analysis by [email protected]

    Feb. 16, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Sep. 25, 2023

    Action Type Old Value New Value
    Added CWE GitHub, Inc. CWE-113
  • Initial Analysis by [email protected]

    Sep. 22, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://github.com/mastodon/mastodon/commit/94893cf24fc95b32cc7a756262acbe008c20a9d2 No Types Assigned https://github.com/mastodon/mastodon/commit/94893cf24fc95b32cc7a756262acbe008c20a9d2 Patch
    Changed Reference Type https://github.com/mastodon/mastodon/security/advisories/GHSA-hcqf-fw2r-52g4 No Types Assigned https://github.com/mastodon/mastodon/security/advisories/GHSA-hcqf-fw2r-52g4 Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:a:joinmastodon:mastodon:4.2.0:beta1:*:*:*:*:*:* *cpe:2.3:a:joinmastodon:mastodon:4.2.0:beta2:*:*:*:*:*:* *cpe:2.3:a:joinmastodon:mastodon:4.2.0:beta3:*:*:*:*:*:* *cpe:2.3:a:joinmastodon:mastodon:4.2.0:rc1:*:*:*:*:*:*
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-2023-42450 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

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

0.14 }} 0.01%

score

0.50823

percentile

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