A vulnerability in the FCKeditor of Liferay could allow an unauthenticated, remote attacker to upload arbitrary files on a targeted system.
The vulnerability is due to improper security restrictions on file uploads by the affected software. An attacker could exploit this vulnerability by making a GET request that submits malicious input to the affected software. A successful exploit could allow arbitrary files to be uploaded to the system, which the attacker could use to execute arbitrary code or cause a denial of service (DoS) condition by overloading the file system or database on the affected system.
Proof-of-concept (PoC) code that demonstrates an exploit of this vulnerability is publicly available.
Liferay has not confirmed the vulnerability and software updates are not available.
To exploit this vulnerability, an attacker must send a crafted GET request to the targeted system, which may require that the attacker have access to the same trusted, internal network in which the system resides. This access requirement may reduce the likelihood of a successful exploit.
Administrators are advised to contact the vendor regarding future updates and releases.
Administrators are advised to allow only trusted users to have network access.
Administrators are advised to run both firewall and antivirus applications to minimize the potential of inbound and outbound threats.
Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.
Administrators can help protect affected systems from external attacks by using a solid firewall strategy.
Administrators are advised to monitor affected systems.
At the time this alert was first published, Liferay had not released a security advisory.
At the time this alert was first published, Liferay had not released software updates.
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM
THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.
A standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products
Cisco Multivendor Vulnerability Alerts respond to vulnerabilities identified in third-party vendors' products. These alerts contain information compiled from diverse sources and provide comprehensive technical descriptions, objective analytical assessments, workarounds and practical safeguards, and links to vendor advisories and patches.