The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity
High
AC
The successful attack depends on the evasion or circumvention of security-enhancing techniques in place that would otherwise hinder the attack. These include: Evasion of exploit mitigation techniques. The attacker must have additional methods available to bypass security measures in place. For example, circumvention of address space randomization (ASLR) or data execution prevention must be performed for the attack to be successful. Obtaining target-specific secrets. The attacker must gather some target-specific secret before the attack can be successful. A secret is any piece of information that cannot be obtained through any amount of reconnaissance. To obtain the secret the attacker must perform additional attacks or break otherwise secure measures (e.g. knowledge of a secret key may be needed to break a crypto channel). This operation must be performed for each attacked target.
Privileges Required
None
PR
The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction
None
UI
The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope
Unchanged
S
An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality
Low
C
There is some impact on confidentiality, but the attacker either does not gain control of any data, or the information obtained does not have a significant impact on the system or its operations.
Integrity
Low
I
Modification of data is possible, but the attacker does not have control over what can be modified, or the extent of what the attacker can affect is limited. The data modified does not have a direct, serious impact on the system.
Availability
Low
A
There is reduced performance or interruptions in resource availability. However, the attacker does not have the ability to completely prevent access to the resources or services; the impact is limited.
JD Edwards 9.1 EnterpriseOne Server Create UsersOnapsis Security Advisory ONAPSIS-2016-011: JD Edwards Server Manager Create users
1. Impact on Business
=====================
By exploiting this vulnerability an unauthenticated attacker could create users in the Server Manager, ultimately compromising the whole JDE landscape hence all of its information and processes.
Risk Level: Critical
2. Advisory Information
=======================
- Public Release Date: 07/28/2016
- Last Revised: 07/28/2016
- Security Advisory ID: ONAPSIS-2016-011
- Onapsis SVS ID: ONAPSIS-00171
- CVE: CVE-2016-0420
- Researcher: Fernando Russ and Matias Mevied
- Vendor Provided CVSS v2: 7.8 (AV:N/AC:L/Au:N/C:N/I:N/A:C)
- Onapsis CVSS v2: 10 (AV:N/AC:L/Au:N/C:C/I:C/A:C)
- Onapsis CVSS v3: 10 (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
3. Vulnerability Information
============================
- Vendor: Oracle
- Affected Components: JD Edwards 9.1 EnterpriseOne Server
- Vulnerability Class: Missing Authentication for Critical Function (CWE-306)
- Remotely Exploitable: Yes
- Locally Exploitable: No
- Authentication Required: No
- Original Advisory: http://onapsis.com/research/security-advisories/jd-edwards-server-manager-create-user
4. Affected Components Description
==================================
The Server Manager use the Java Management Extensions (JMX) technology to connect to all the JD Edwards servers with an agent. This technology uses Managed Bean and the standard Remote Method Invocation (RMI) protocol.
5. Vulnerability Details
========================
The vulnerability could be exploited invoking two methods: one is to create the user and the password, the other method is to assign the role. With this new user it is possible to log into Server Manager and manage all the servers.
The vulnerability could be exploited invoking the methods addLocalUser and grantUserRole to create the user, password and assign the roles. With this new user it is possible to log into Server Manager and manage all the servers.
6. Solution
===========
Implement Oracle Critical Patch Update released in January 2016.
7. Report Timeline
==================
- 03/12/2015: Onapsis provides vulnerability information to Oracle.
- 03/17/2015: Oracle confirms reception of vulnerability report.
- 01/19/2016: Oracle releases the Critical Patch Update in January 2016 fixing the vulnerability.
- 07/28/2016: Onapsis Releases Security Advisory.
About Onapsis Research Labs
===========================
Onapsis Research Labs provides the industry analysis of key security issues that impact business-critical systems and applications. Delivering frequent and timely security and compliance advisories with associated risk levels, Onapsis Research Labs combine in-depth knowledge and experience to deliver technical and business-context with sound security judgment to the broader information security community.
About Onapsis, Inc.
===================
Onapsis provides the most comprehensive solutions for securing SAP and Oracle enterprise applications. As the leading experts in SAP and Oracle cyber-security, Onapsis enables security and audit teams to have visibility, confidence and control of advanced threats, cyber-risks and compliance gaps affecting their enterprise applications.
Headquartered in Boston, Onapsis serves over 180 Global 2000 customers, including 10 top retailers, 20 top energy firms and 20 top manufacturers. Onapsis solutions are also the de-facto standard for leading consulting and audit firms such as Accenture, IBM, Deloitte, E&Y, KPMG and PwC.
Onapsis solutions include the Onapsis Security Platform, which is the most widely-used SAP-certified cyber-security solution in the market. Unlike generic security products, Onapsis context-aware solutions deliver both preventative vulnerability and compliance controls, as well as real-time detection and incident response capabilities to reduce risks affecting critical business processes and data. Through open interfaces, the platform can be integrated with leading SIEM, GRC and network security products, seamlessly incorporating enterprise applications into existing vulnerability, risk and incident response management programs.
These solutions are powered by the Onapsis Research Labs which continuously provide leading intelligence on security threats affecting SAP and Oracle enterprise applications. Experts of the Onapsis Research Labs were the first to lecture on SAP cyber-attacks and have uncovered and helped fix hundreds of security vulnerabilities to-date affecting SAP Business Suite, SAP HANA, SAP Cloud and SAP Mobile applications, as well as Oracle JD Edwards and Oracle E-Business Suite platforms.
For more information, please visit www.onapsis.com, or connect with us on Twitter, Google+, or LinkedIn.
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