Ecosyste.ms: Advisories

An open API service providing security vulnerability metadata for many open source software ecosystems.

Security Advisories: GSA_kwCzR0hTQS1tMzZ4LW1nZmgtOGc3OM0l_w

Subdomain Takeover in Interactsh server

A domain configured with interactsh server was vulnerable to subdomain takeover for specfic subdomain, i.e app, Interactsh server before < 1.0.0 used to create cname entries for app pointing to projectdiscovery.github.io as default which intended to used for hosting interactsh web client using GitHub pages. It turns out to be a security issue with a self-hosted interactsh server in which the user may not have configured a web client but still have a cname entry pointing to GitHub pages, making them vulnerable to subdomain takeover.

This issue was initially reported to us as a subdomain takeover for one of our domains that runs interactsh server by Melih at [email protected], and after conducting an internal investigation, we determined that it was an issue with the default config of interactsh server affecting all the server running self-hosted instance of interactsh, as a result - cname entry has been removed in the latest release.

Impact

This allows one to host / run arbitrary client side code (XSS) in a user's browser when browsing the vulnerable subdomain, for more details on the impact, please read this detailed blogpost from Detectify.

Patches

Update to Interactsh server v1.0.0 with go install -v github.com/projectdiscovery/interactsh/cmd/interactsh-server@latest

References

https://github.com/projectdiscovery/interactsh/issues/136

For more information

If you have any questions or comments about this advisory:

Permalink: https://github.com/advisories/GHSA-m36x-mgfh-8g78
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1tMzZ4LW1nZmgtOGc3OM0l_w
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: about 2 years ago
Updated: 5 months ago


CVSS Score: 6.1
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Identifiers: GHSA-m36x-mgfh-8g78, CVE-2023-36474
References: Repository: https://github.com/projectdiscovery/interactsh
Blast Radius: 12.4

Affected Packages

go:github.com/projectdiscovery/interactsh
Dependent packages: 66
Dependent repositories: 109
Downloads:
Affected Version Ranges: < 1.0.0
Fixed in: 1.0.0
All affected versions: 0.0.1, 0.0.2, 0.0.3, 0.0.4, 0.0.5, 0.0.6, 0.0.7
All unaffected versions: 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.1.6, 1.1.7, 1.1.8, 1.1.9