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How the mentioned CVE works:
The vulnerability exists within the Staging Sync Server’s implementation of digest authentication. The server incorrectly handles authentication attempts when a request contains an empty SHA1 username field. Instead of rejecting the request due to the missing or invalid username, the authentication process fails open, granting access without valid credentials. This flaw allows an attacker to bypass the entire authentication mechanism by crafting a specific HTTP request with a blank username in the digest header. Once bypassed, an attacker gains administrative control over the application’s objects, enabling them to view, modify, or delete sensitive data and configuration settings within the Kentico Xperience platform through the staging service interface.
Platform: Kentico Xperience
Version: Through 13.0.172
Vulnerability : Authentication Bypass
Severity: Critical
date: 2024
Prediction: 2024-10-15
What Undercode Say:
curl -X POST -H "Authorization: Digest username=\"\", ..." http://target/CMSModules/Staging/SyncServer.ashx
import requests
from requests.auth import HTTPDigestAuth
response = requests.get(url, auth=HTTPDigestAuth('', 'any_password'))
How Exploit:
Craft HTTP request.
Use empty username.
Bypass authentication checks.
Gain admin object control.
Protection from this CVE
Apply vendor patch.
Upgrade version.
Disable staging server.
Use network isolation.
Impact:
Full admin access.
Data manipulation.
System compromise.
Complete breach.
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Sources:
Reported By: www.cve.org
Extra Source Hub:
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