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Executive Summary
CVE-2020-14882 is a critical vulnerability in the Oracle WebLogic Server, part of Oracle Fusion Middleware. This vulnerability allows an unauthenticated attacker with network access via HTTP to execute arbitrary code on the affected system, leading to a complete takeover of the Oracle WebLogic Server. The vulnerability affects versions 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, and 14.1.1.0.0. This report provides a detailed analysis of the vulnerability, its exploitation in the wild, affected product versions, and mitigation strategies.
Technical Information
CVE-2020-14882 is a critical vulnerability with a CVSS v3.1 Base Score of 9.8, indicating its severity. The vulnerability exists in the Console component of Oracle WebLogic Server and is easily exploitable. It allows an unauthenticated attacker to execute arbitrary code on the server via HTTP. The attack vector is network-based, with low attack complexity, no required privileges, and no user interaction needed. The scope remains unchanged, but the impact on confidentiality, integrity, and availability is high.
The vulnerability is due to improper input validation in the Console component. An attacker can send a specially crafted HTTP request to the WebLogic Server, which can lead to the execution of arbitrary code. This can result in the complete compromise of the affected system, allowing the attacker to gain full control over the server, access sensitive data, and disrupt services.
Exploitation in the Wild
CVE-2020-14882 has been actively exploited in the wild. Attackers have been observed using this vulnerability to deploy malware, including ransomware, and to establish backdoors for persistent access to compromised systems. The exploitation typically involves sending a crafted HTTP request to the vulnerable WebLogic Server, which then executes the attacker's code.
Indicators of Compromise (IOCs) include unusual network traffic to and from the WebLogic Server, unexpected processes running on the server, unauthorized changes to system files and configurations, and the presence of known malware or backdoors. Specific IOCs from the Sysrv Botnet include SHA256 hashes such as 8223164dd8e2c7d6b2f0da63639186564335ba6a1bfc11cf31493d5c48f3abaf and 9b2023a0e22f22860a7a46a67c9eba2c4831db66244603fd961fbb5c38b55272.
APT Groups using this vulnerability
Several Advanced Persistent Threat (APT) groups have been known to exploit CVE-2020-14882. These groups often target sectors such as finance, healthcare, and government in countries including the United States, United Kingdom, and Australia. The exploitation by APT groups typically involves using the vulnerability to gain initial access to the network, followed by lateral movement and data exfiltration.
Affected Product Versions
The following versions of Oracle WebLogic Server are affected by CVE-2020-14882: - Oracle WebLogic Server 10.3.6.0.0 - Oracle WebLogic Server 12.1.3.0.0 - Oracle WebLogic Server 12.2.1.3.0 - Oracle WebLogic Server 12.2.1.4.0 - Oracle WebLogic Server 14.1.1.0.0
Workaround and Mitigation
Oracle has released patches to address this vulnerability. It is crucial to apply these patches immediately to prevent exploitation. The patches are included in the Oracle Critical Patch Update (CPU) for October 2020. The patch information can be found at the following link: https://www.oracle.com/security-alerts/cpuoct2020.html.
In addition to applying patches, organizations should implement the following mitigation strategies: - Regularly update and patch all software and systems. - Monitor network traffic for unusual activity. - Implement network segmentation to limit the impact of a breach. - Use intrusion detection and prevention systems to identify and block malicious activity. - Conduct regular security assessments and penetration testing to identify and address vulnerabilities.
References
For more detailed information on CVE-2020-14882 and related exploits, please refer to the following resources: - Packet Storm Security - Oracle WebLogic Server Remote Code Execution: http://packetstormsecurity.com/files/159769/Oracle-WebLogic-Server-Remote-Code-Execution.html - Packet Storm Security - Oracle WebLogic Server Administration Console Handle Remote Code Execution: http://packetstormsecurity.com/files/160143/Oracle-WebLogic-Server-Administration-Console-Handle-Remote-Code-Execution.html - Packet Storm Security - Oracle WebLogic Server 12.2.1.0 Remote Code Execution: http://packetstormsecurity.com/files/161128/Oracle-WebLogic-Server-12.2.1.0-Remote-Code-Execution.html - GitHub - CVE-2020-14882 POC by 3hm1ly: https://github.com/3hm1ly/CVE-2020-14882 - GitHub - CVE-2020-14882 POC by Danny-LLi: https://github.com/Danny-LLi/CVE-2020-14882 - GitHub - CVE-2020-14882_ALL by GGyao: https://github.com/GGyao/CVE-2020-14882_ALL - GitHub - CVE-2020-14882_POC by GGyao: https://github.com/GGyao/CVE-2020-14882_POC - GitHub - CVE-2020-14882 by NS-Sp4ce: https://github.com/NS-Sp4ce/CVE-2020-14882 - GitHub - CVE-2020-14882 by QmF0c3UK: https://github.com/QmF0c3UK/CVE-2020-14882 - GitHub - CVE-2020-14882 by RedTeamWing: https://github.com/RedTeamWing/CVE-2020-14882 - GitHub - CVE-2020-14882 by ShmilySec: https://github.com/ShmilySec/CVE-2020-14882 - GitHub - CVE-2020-14882 by XTeam-Wing: https://github.com/XTeam-Wing/CVE-2020-14882 - GitHub - CodeTest by adm1in: https://github.com/adm1in/CodeTest - GitHub - CVE-2020-14882-weblogicRCE by corelight: https://github.com/corelight/CVE-2020-14882-weblogicRCE - GitHub - CVE-2020-14882-WebLogic by exploitblizzard: https://github.com/exploitblizzard/CVE-2020-14882-WebLogic - GitHub - CVE-2020-14882 by jas502n: https://github.com/jas502n/CVE-2020-14882 - GitHub - CVE-2020-14882 by kk98kk0: https://github.com/kk98kk0/CVE-2020-14882 - GitHub - Popular-CVEs by kuckibf: https://github.com/kuckibf/Popular-CVEs - GitHub - Weblogic_Unauthorized-bypass-RCE by ludy-dev: https://github.com/ludy-dev/Weblogic_Unauthorized-bypass-RCE - GitHub - CVE-2020-14882 by milo2012: https://github.com/milo2012/CVE-2020-14882 - GitHub - cve-2020-14882 by mmioimm: https://github.com/mmioimm/cve-2020-14882 - GitHub - CVE-2020-14882 by murataydemir: https://github.com/murataydemir/CVE-2020-14882 - GitHub - CVE-2020-14882_Exploit_Gui by nice0e3: https://github.com/nice0e3/CVE-2020-14882_Exploit_Gui - GitHub - metasploit-framework by rapid7: https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/weblogic_admin_handle_rce.rb - GitHub - CVE-2020-14882 by s1kr10s: https://github.com/s1kr10s/CVE-2020-14882 - GitHub - cve-2020-14882 by wsfengfan: https://github.com/wsfengfan/cve-2020-14882 - GitHub - CVE-2020-14882 by xfiftyone: https://github.com/xfiftyone/CVE-2020-14882 - GitHub - CVE-2020-14882 by xwuyi: https://github.com/xwuyi/CVE-2020-14882 - GitHub - exphub by zhzyker: https://github.com/zhzyker/exphub
Rescana is here for you
At Rescana, we understand the critical importance of protecting your systems from vulnerabilities like CVE-2020-14882. Our Continuous Threat and Exposure Management (CTEM) platform helps you identify, assess, and mitigate risks in real-time, ensuring your organization's security posture remains robust. We are committed to providing you with the tools and expertise needed to safeguard your assets. If you have any questions about this report or any other issue, please do not hesitate to contact us at ops@rescana.com.