Weblogic is used by many companies these days, mainly in the financial sector. This represents a high risk for those sectors that use these types of servers, but mainly those that do not have security patches or are outdated.
Weblogic vulnerability CVE-2020-14882 is a security flaw affecting the Oracle WebLogic application server. This vulnerability allows a remote attacker to execute malicious code on the target system without authentication.
This vulnerability was discovered by security researchers at Check Point Research and is classified as critical due to its ability to allow attackers to take full control of the targeted system.
How Weblogic Vulnerability CVE-2020-14882 works
Weblogic vulnerability CVE-2020-14882 is due to a lack of validation on input in the WebLogic server console component. An attacker can exploit this vulnerability by sending a specially crafted HTTP request to the target server.
Once the attacker has exploited the vulnerability, he can execute arbitrary code on the target system with the same privileges as the user running the WebLogic server. This means that the attacker can take full control of the target system and perform any action he wishes.
Impact of the Weblogic Vulnerability CVE-2020-14882
The Weblogic vulnerability CVE-2020-14882 has a significant impact on the security of organizations using the Oracle WebLogic application server. If an attacker successfully exploits this vulnerability, they can take full control of the target system and steal sensitive data, install malware or ransomware, or even cause physical damage through attacks on industrial systems.
It is important that organizations patch their systems as soon as possible to protect against this vulnerability. They should also implement additional security measures, such as firewalls and intrusion detection solutions, to reduce the risk of future attacks.
Weblogic Vulnerability POC CVE-2020-14882
Cyberpeace has the capability to perform security assessments, as well as the capability to test these vulnerabilities.
Our team of Red Team experts have performed the poc (proof of concept), managing to compromise several critical systems in the infrastructure of our customers, for this, the team of experts analyze the published CVE and create their own exploits that allow to evade and exploit the vulnerability successfully.
In the following image we can see that remote command execution is possible through this vulnerability published by the CheckPoint team.
How to protect against Weblogic Vulnerability CVE-2020-14882
To protect against the Weblogic CVE-2020-14882 vulnerability, organizations should follow Oracle's recommendations and patch their systems as soon as possible. Oracle has released patches for all affected versions of WebLogic, and it is important that organizations install them as soon as possible.
In addition, organizations should implement additional security measures, such as firewalls, intrusion detection solutions and network activity monitoring, to detect and prevent future attacks. They should also educate their staff on cybersecurity best practices and foster a culture of security within the organization.
Written by:
Ulises Cervantes
Red Team Manager of Cyberpeace
References:
Oracle Security Alert Advisory - CVE-2020-14882: https://www.oracle.com/securityalerts/cpuoct2020traditional.html#AppendixWL
Check Point Research - CVE-2020-14882: Remote Code Execution on Oracle WebLogic: https://research.checkpoint.com/2020/remote-codeexecution-on-oracle-weblogic/