The vulnerable system is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or through terminal emulation (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., using social engineering techniques to trick a legitimate user into opening a malicious document).
Attack Complexity
Low
AC
The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements
Present
AT
The successful attack depends on the presence of specific deployment and execution conditions of the vulnerable system that enable the attack. These include: A race condition must be won to successfully exploit the vulnerability. The successfulness of the attack is conditioned on execution conditions that are not under full control of the attacker. The attack may need to be launched multiple times against a single target before being successful. Network injection. The attacker must inject themselves into the logical network path between the target and the resource requested by the victim (e.g. vulnerabilities requiring an on-path attacker).
Privileges Required
Low
PR
The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
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
Confidentiality Impact to the Vulnerable System
High
VC
There is a total loss of confidentiality, resulting in all information within the Vulnerable System being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server.
Availability Impact to the Vulnerable System
High
VI
There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the Vulnerable System. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the Vulnerable System.
Availability Impact to the Vulnerable System
High
VA
There is a total loss of availability, resulting in the attacker being able to fully deny access to resources in the Vulnerable System; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the Vulnerable System (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).
Subsequent System Confidentiality Impact
Negligible
SC
There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Integrity Impact to the Subsequent System
None
SI
There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Availability Impact to the Subsequent System
None
SA
There is no loss of availibility within the Subsequent System or all availibility impact is constrained to the Vulnerable System.
Oracle E-Business Suite 12.1.3 XXE Injection1. ADVISORY INFORMATION
Title: Oracle E-Business Suite XXE injection
Advisory ID: [ERPSCAN-15-030]
Advisory URL: http://erpscan.com/advisories/erpscan-15-030-oracle-e-business-suite-xxe-injection-vulnerability/
Date published: 20.10.2015
Vendors contacted: Oracle
2. VULNERABILITY INFORMATION
Class: XML External Entity [CWE-611]
Impact: information disclosure, DoS, SSRF, NTLM relay
Remotely Exploitable: Yes
Locally Exploitable: No
CVE Name: CVE-2015-4851
CVSS Information
CVSS Base Score: 6.8 / 10
AV : Access Vector (Related exploit range) Network (N)
AC : Access Complexity (Required attack complexity) Medium (M)
Au : Authentication (Level of authentication needed to exploit) None (N)
C : Impact to Confidentiality Partial (P)
I : Impact to Integrity Partial (P)
A : Impact to Availability Partial (P)
3. VULNERABILITY DESCRIPTION
1) An attacker can read an arbitrary file on a server by sending a
correct XML request with a crafted DTD and reading the response from
the service.
2) An attacker can perform a DoS attack (for example, XML Entity Expansion).
3) An SMB Relay attack is a type of Man-in-the-Middle attack where the
attacker asks the victim to authenticate into a machine controlled by
the attacker, then relays the credentials to the target. The attacker
forwards the authentication information both ways and gets access.
4. VULNERABLE PACKAGES
Oracle E-Business Suite 12.1.3
Other versions are probably affected too, but they were not checked.
5. SOLUTIONS AND WORKAROUNDS
Install Oracle CPU October 2015
6. AUTHOR
Nikita Kelesis, Ivan Chalykin, Alexey Tyurin (ERPScan)
7. TECHNICAL DESCRIPTION
Vulnerable servlet:
/OA_HTML/oramipp_lpr
8. REPORT TIMELINE
Reported: 17.07.2015
Vendor response: 24.07.2015
Date of Public Advisory: 20.10.2015
9. REFERENCES
http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
http://erpscan.com/advisories/erpscan-15-030-oracle-e-business-suite-xxe-injection-vulnerability/
10. ABOUT ERPScan Research
The companys expertise is based on the research subdivision of
ERPScan, which is engaged in vulnerability research and analysis of
critical enterprise applications. It has achieved multiple
acknowledgments from the largest software vendors like SAP, Oracle,
Microsoft, IBM, VMware, HP for discovering more than 400
vulnerabilities in their solutions (200 of them just in SAP!).
ERPScan researchers are proud to have exposed new types of
vulnerabilities (TOP 10 Web Hacking Techniques 2012) and to be
nominated for the best server-side vulnerability at BlackHat 2013.
ERPScan experts have been invited to speak, present, and train at 60+
prime international security conferences in 25+ countries across the
continents. These include BlackHat, RSA, HITB, and private SAP
trainings in several Fortune 2000 companies.
ERPScan researchers lead the project EAS-SEC, which is focused on
enterprise application security research and awareness. They have
published 3 exhaustive annual award-winning surveys about SAP
security.
ERPScan experts have been interviewed by leading media resources and
featured in specialized info-sec publications worldwide. These include
Reuters, Yahoo, SC Magazine, The Register, CIO, PC World, DarkReading,
Heise, and Chinabyte, to name a few.
We have highly qualified experts in staff with experience in many
different fields of security, from web applications and
mobile/embedded to reverse engineering and ICS/SCADA systems,
accumulating their experience to conduct the best SAP security
research.
11. ABOUT ERPScan
ERPScan is one of the most respected and credible Business Application
Security providers. Founded in 2010, the company operates globally.
Named an Emerging vendor in Security by CRN and distinguished by more
than 25 other awards, ERPScan is the leading SAP SE partner in
discovering and resolving security vulnerabilities. ERPScan
consultants work with SAP SE in Walldorf to improve the security of
their latest solutions.
ERPScans primary mission is to close the gap between technical and
business security. We provide solutions to secure ERP systems and
business-critical applications from both cyber attacks and internal
fraud. Our clients are usually large enterprises, Fortune 2000
companies, and managed service providers whose requirements are to
actively monitor and manage the security of vast SAP landscapes on a
global scale.
Our flagship product is ERPScan Security Monitoring Suite for SAP.
This multi award-winning innovative software is the only solution on
the market certified by SAP SE covering all tiers of SAP security:
vulnerability assessment, source code review, and Segregation of
Duties.
The largest companies from diverse industries like oil and gas,
banking, retail, even nuclear power installations as well as
consulting companies have successfully deployed the software. ERPScan
Security Monitoring Suite for SAP is specifically designed for
enterprises to continuously monitor changes in multiple SAP systems.
It generates and analyzes trends in user friendly dashboards, manages
risks, tasks, and can export results to external systems. These
features enable central management of SAP system security with minimal
time and effort.
We follow the sun and function in two hubs located in the Netherlands
and the US to operate local offices and partner network spanning 20+
countries around the globe. This enables monitoring cyber threats in
real time and providing agile customer support.
Adress USA: 228 Hamilton Avenue, Fl. 3, Palo Alto, CA. 94301
Phone: 650.798.5255
Twitter: @erpscan
Scoop-it: Business Application Security
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