CVE Catalog

CVE-2023-36474

HighCVSS 8.2
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.45%

36th percentile - higher than 36% of all known CVEs

Summary

Interactsh is an open-source tool for detecting out-of-band interactions. Versions of the interactsh server prior to 1.0.0 were vulnerable to subdomain takeover for the `app` subdomain, allowing attackers to run arbitrary client-side code in users' browsers.

Risk Assessment

Organizations may be exposed to cross-site scripting attacks, potentially leading to data theft or session hijacking. Subdomain takeover can also impact the organization's reputation.

Recommendation

It is recommended to upgrade the interactsh server to version 1.0.0 or later to eliminate default CNAME entries and minimize the risk of subdomain takeover.

Related vulnerabilities

Original NVD description (English source)

Interactsh is an open-source tool for detecting out-of-band interactions. Domains configured with interactsh server prior to version 1.0.0 were vulnerable to subdomain takeover for a specific subdomain, i.e `app.` Interactsh server 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. This is 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 allows a threat actor to host / run arbitrary client side code (cross-site scripting) in a user's browser when browsing the vulnerable subdomain. Version 1.0.0 fixes this issue by making CNAME optional, rather than default.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS