Executive Summary

This vulnerability exists in Lumiverse, an AI chat application, specifically in versions prior to 0.9.7. The issue arises in the Spindle extension build pipeline, where the process calls 'bun install' without the '--ignore-scripts' flag before running a backend safety scan. Because of this, a malicious extension containing lifecycle scripts like preinstall, postinstall, or prepare in its package.json can execute code on the host system as soon as an admin clicks Install, even before any files are inspected.

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Impact Analysis

This vulnerability can lead to host-level code execution, meaning an attacker can run arbitrary code on the system where Lumiverse is installed. This can compromise the confidentiality, integrity, and availability of the system and its data, potentially allowing attackers to steal sensitive information, alter data, or disrupt services.

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Mitigation Strategies

To mitigate this vulnerability, upgrade Lumiverse to version 0.9.7 or later, where the issue has been fixed.

Avoid installing extensions before verifying their contents, especially any lifecycle scripts such as preinstall, postinstall, or prepare scripts in package.json files.

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Compliance Impact

This vulnerability allows an attacker with admin privileges to execute arbitrary code at the OS level on the server hosting the Lumiverse application. Such unauthorized code execution can lead to full compromise of confidentiality, integrity, and availability of data and systems.

Given the critical impact on confidentiality and integrity, this vulnerability could lead to violations of common standards and regulations such as GDPR and HIPAA, which require protection of sensitive personal and health data against unauthorized access and modification.

Specifically, exploitation could result in unauthorized data access, data breaches, or data tampering, all of which are non-compliant with these regulations' requirements for data security and privacy.

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Detection Guidance

Detection of this vulnerability involves identifying if the vulnerable versions of Lumiverse (0.9.5 and below) or the Spindle extension are in use, and whether the build pipeline runs the `bun install` command without the `--ignore-scripts` flag.

You can check the version of Lumiverse installed by running commands like:

• `npm list lumiverse-backend` or `npm ls lumiverse-backend` to see the installed package version.

To detect if the build pipeline runs `bun install` without the `--ignore-scripts` flag, you can search the build scripts or CI/CD pipeline configuration files for the command usage:

• `grep -r "bun install" ./path-to-build-scripts/`
• Check if the `--ignore-scripts` flag is missing in the output.

Additionally, you can audit installed extensions for suspicious lifecycle scripts by inspecting their `package.json` files for `preinstall`, `postinstall`, or `prepare` scripts that could execute code:

• `find ./extensions -name package.json -exec grep -E '"(preinstall|postinstall|prepare)"' {} \;`

Monitoring for unexpected or unauthorized code execution during extension installation or updates can also help detect exploitation attempts.

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