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CVE-2023-37261 Detail

Description

OpenComputers is a Minecraft mod that adds programmable computers and robots to the game. This issue affects every version of OpenComputers with the Internet Card feature enabled; that is, OpenComputers 1.2.0 until 1.8.3 in their most common, default configurations. If the OpenComputers mod is installed as part of a Minecraft server hosted on a popular cloud hosting provider, such as AWS, GCP and Azure, those metadata services' API endpoints are not forbidden (aka "blacklisted") by default. As such, any player can gain access to sensitive information exposed via those metadata servers, potentially allowing them to pivot or privilege escalate into the hosting provider. In addition, IPv6 addresses are not correctly filtered at all, allowing broader access into the local IPv6 network. This can allow a player on a server using an OpenComputers computer to access parts of the private IPv4 address space, as well as the whole IPv6 address space, in order to retrieve sensitive information. OpenComputers v1.8.3 for Minecraft 1.7.10 and 1.12.2 contains a patch for this issue. Some workarounds are also available. One may disable the Internet Card feature completely. If using OpenComputers 1.3.0 or above, using the allow list (`opencomputers.internet.whitelist` option) will prohibit connections to any IP addresses and/or domains not listed; or one may add entries to the block list (`opencomputers.internet.blacklist` option). More information about mitigations is available in the GitHub Security Advisory.


Severity



CVSS 4.0 Severity and Metrics:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/MightyPirates/OpenComputers/blob/5b2ba76a4c242b369b9b6ac6196fd04d96580ad0/src/main/resources/application.conf#L966-L986 Product 
https://github.com/MightyPirates/OpenComputers/blob/5b2ba76a4c242b369b9b6ac6196fd04d96580ad0/src/main/scala/li/cil/oc/Settings.scala#L614-L637 Product 
https://github.com/MightyPirates/OpenComputers/commit/d13c015357fd6c42e0a1bdd6e1ef9462f0450a15 Patch 
https://github.com/MightyPirates/OpenComputers/issues/2365 Issue Tracking 
https://github.com/MightyPirates/OpenComputers/releases/tag/1.12.2-forge%2F1.8.3 Release Notes 
https://github.com/MightyPirates/OpenComputers/security/advisories/GHSA-vvfj-xh7c-j2cm Vendor Advisory 
https://github.com/cc-tweaked/CC-Tweaked/security/advisories/GHSA-7p4w-mv69-2wm2 Not Applicable 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-918 Server-Side Request Forgery (SSRF) Contributor acceptance level GitHub, Inc.  

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-37261
NVD Published Date:
07/07/2023
NVD Last Modified:
07/18/2023
Source:
GitHub, Inc.