Oracle WebLogic RMI Registry UnicastRef Object Deserialization of Untrusted Data Remote Code Execution Vulnerability

2017-01-2400:00:00

Tenable Network Security - Jacob Baines

www.zerodayinitiative.com

149

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.971 High

EPSS

Percentile

99.8%

JSON

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Oracle WebLogic. Authentication is not required to exploit this vulnerability. The specific flaw exists within the insufficient blacklisting of certain Java objects. The issue lies in the failure to properly validate user-supplied data which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute arbitrary code under the context of the current process.