Deserialization of untrusted data in Oracle WebLogic Server - CVE-2018-2628

Vulnerability identifier: #VU10055

CSH Severity: High

CVSS v4.0: 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-2018-2628

CWE-ID: CWE-502

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

Vendor: Oracle

Affected software:
Oracle WebLogic Server

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

The weakness exists in Weblogic server WLS Core Components due to deserialization of untrusted data. A remote attacker can use T3 protocol and execute arbitrary code with elevated privileges.

The vulnerability is been actively exploited in the wild.

The vendor has issued an incomplete security fix that can be bypassed and allows to exploit the vulnerability.

• https://github.com/brianwrf/CVE-2018-2628
• http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
• http://mp.weixin.qq.com/s/nYY4zg2m2xsqT0GXa9pMGA
• https://www.bleepingcomputer.com/news/security/hackers-scan-the-web-for-vulnerable-weblogic-servers-...