Remote code execution in Oracle WebLogic Server



| Updated: 2020-10-21
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2015-4852
CWE-ID CWE-502
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerable software
 Oracle WebLogic Server
Server applications / Application servers

Vendor Oracle

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Deserialization of Untrusted Data

EUVDB-ID: #VU47859

Risk: High

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2015-4852

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data in the WLS Security component. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Oracle WebLogic Server: 10.3.6.0.0 - 12.2.1.0

CPE2.3 External links

https://foxglovesecurity.com/2015/11/06/what-do-weblogic-websphere-jboss-jenkins-opennms-and-your-application-have-in-common-this-vulnerability/
https://packetstormsecurity.com/files/152268/Oracle-Weblogic-Server-Deserialization-Remote-Code-Execution.html
https://www.openwall.com/lists/oss-security/2015/11/17/19
https://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html
https://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
https://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
https://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
https://www.oracle.com/technetwork/topics/security/alert-cve-2015-4852-2763333.html
https://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
https://www.securityfocus.com/bid/77539
https://www.securitytracker.com/id/1038292
https://blogs.oracle.com/security/entry/security_alert_cve_2015_4852
https://github.com/foxglovesec/JavaUnserializeExploits/blob/master/weblogic.py
https://www.exploit-db.com/exploits/42806/
https://www.exploit-db.com/exploits/46628/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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