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The vulnerability exists in the initial setup phase of Liferay Portal and DXP. Upon a fresh installation, the system creates a default administrator account. The API endpoints, which are normally protected by authentication and authorization checks, fail to enforce these checks if the authenticated user has not yet changed their default password from the initial installation. This creates a window of opportunity where a remote attacker, who has discovered the default credentials through information disclosure or brute-force, can authenticate and then bypass subsequent security controls. The system incorrectly assumes a user with an unchanged password is fully vetted, granting them unauthorized API access. This allows for data exposure and content manipulation through API calls before the mandatory initial password change has been completed.
Platform: Liferay Portal/DXP
Version: 7.4.0 – 7.4.3.111
Vulnerability: Default Credentials Bypass
Severity: Moderate
date: 2025-09-15
Prediction: Patch: 2025-09-20
What Undercode Say:
`curl -X GET -u user:defaultpassword http://liferay-host/o/api/posts`
`nmap -p 8080 –script http-default-accounts liferay-host</h2>
<h2 style="color: blue;">hydra -l [email protected] -P wordlist.txt liferay-host http-post-form “/c/portal/login:login=^USER^&password=^PASS^:Invalid”`
<h2 style="color: blue;">
How Exploit:
Authenticate with default credentials. Access unauthorized API endpoints before mandatory password change. Execute GET/POST requests to modify content.
Protection from this CVE:
Immediate post-installation password change. Network access control. Update to patched version.
Impact:
Unauthorized data access. Content manipulation. Initial system compromise.
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Sources:
Reported By: github.com
Extra Source Hub:
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