Remote code execution in Oracle WebLogic Server

1) Deserialization of Untrusted Data

EUVDB-ID: #VU9816

Risk: Critical

CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2017-3506

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

Exploit availability: Yes

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. A remote attacker can send 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 update from vendor's website.

Vulnerable software versions

Oracle WebLogic Server: 12.1.3.0.0 - 12.2.1.2

CPE2.3

• cpe:2.3:a:oracle:oracle_weblogic_server:12.1.3.0.0:*:*:*:*:*:*:
• cpe:2.3:a:oracle:oracle_weblogic_server:12.2.1.1:*:*:*:*:*:*:
• cpe:2.3:a:oracle:oracle_weblogic_server:12.2.1.2:*:*:*:*:*:*:

External links

http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html

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?

Yes. This vulnerability is being exploited in the wild.