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GHSA-8gvc-j273-4wm5

MediumCVSS 5.9 / 10
Published Feb 4, 2025·Last modified Feb 4, 2025
Affected Components(0)

No affected components available

Description

Summary

__screenshot-error handler on the browser mode HTTP server that responds any file on the file system. Especially if the server is exposed on the network by browser.api.host: true, an attacker can send a request to that handler from remote to get the content of arbitrary files.

Details

This __screenshot-error handler on the browser mode HTTP server responds any file on the file system. https://github.com/vitest-dev/vitest/blob/f17918a79969d27a415f70431e08a9445b051e45/packages/browser/src/node/plugin.ts#L88-L130

This code was added by https://github.com/vitest-dev/vitest/commit/2d62051f13b4b0939b2f7e94e88006d830dc4d1f.

PoC

  1. Create a directory and change the current directory to that directory
  2. Run npx vitest init browser
  3. Run npm run test:browser
  4. Run curl http://localhost:63315/__screenshot-error?file=/path/to/any/file

Impact

Users explicitly exposing the browser mode server to the network by browser.api.host: true may get any files exposed.

Risk Scores
Base Score
5.9

The vulnerability can be exploited over the network without needing physical access. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information.

Threat Intelligence
5.4

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
2.30%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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