Mastodon up to 4.2.0-rc1 server-side request forgery

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Mastodon up to 4.2.0-rc1. The impacted element is an unknown function. Performing a manipulation results in server-side request forgery. This vulnerability is identified as CVE-2023-42450. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Mastodon up to 4.2.0-rc1. This affects an unknown functionality. The manipulation with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was released 09/19/2023 as GHSA-hcqf-fw2r-52g4. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2023-42450 since 09/08/2023. Neither technical details nor an exploit are publicly available.

Upgrading to version 4.2.0-rc2 eliminates this vulnerability. Applying the patch 94893cf24fc95b32cc7a756262acbe008c20a9d2 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 5.4
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Server-side request forgery
CWE: CWE-918
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Mastodon 4.2.0-rc2
Patch: 94893cf24fc95b32cc7a756262acbe008c20a9d2

Timelineinfo

09/08/2023 🔍
09/19/2023 +11 days 🔍
09/19/2023 +0 days 🔍
10/13/2023 +24 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-hcqf-fw2r-52g4
Status: Confirmed

CVE: CVE-2023-42450 (🔍)
GCVE (CVE): GCVE-0-2023-42450
GCVE (VulDB): GCVE-100-239961

Entryinfo

Created: 09/19/2023 19:03
Updated: 10/13/2023 08:25
Changes: 09/19/2023 19:03 (51), 10/13/2023 08:25 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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