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UNIRAS Brief - 539/04 - PeopleSoft Security Bulletin - Vulnerability in PeopleSoft Human Resources Management System (HRMS) version 7.



 
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   UNIRAS (UK Govt CERT) Briefing Notice - 539/04 dated 28.09.04  Time: 15:00  
  UNIRAS is part of NISCC (National Infrastructure Security Co-ordination Centre)
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  UNIRAS material is also available from its website at www.uniras.gov.uk and
         Information about NISCC is available from www.niscc.gov.uk
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Title
=====

PeopleSoft Security Bulletin:

Vulnerability in PeopleSoft Human Resources Management System (HRMS) version 7.


Detail
====== 

Default PeopleSoft HRMS 7 installations may contain some debugging and utility scripts. 
Such installations may be vulnerable to cross site scripting attacks and further 
exploitation until these scripts are removed. This removal requires editing of some 
original scripts and may not have occurred on all installations.


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1.  Description

    PeopleSoft Human Resources Management System (HRMS) is used to manage
    employee data and workflow. It is used widely in educational institutions
    and large corporations to manage employee personal data, sometimes
    including payroll.

    Default PeopleSoft HRMS 7 installations may contain some debugging and
    utility scripts. Such installations may be vulnerable to cross site
    scripting attacks and further exploitation until these scripts are
    removed. This removal requires editing of some original scripts and may
    not have occurred on all installations.

    Currently there are no vendor patches available that address these
    vulnerabilities. AusCERT recommends that official vendor patches be
    installed when they become available.

2.  Impact

    Default installations of PeopleSoft HRMS 7 contain scripts that may be
    used by a remote un-authenticated attacker to rewrite and add content to
    the main logon page of HRMS. This could include JavaScript code which, 
    for example, would allow for the capture of user credentials being 
    entered into that page. The scripts also allow a remote authenticated 
    attacker to masquerade as any user.

3.  Workarounds/Mitigation

    The following strategies can assist in mitigating the risk posed by this
    vulnerability:

      o Remove the line referencing utils from the file

        user/components/header.htm

        and remove the utils directory/folder completely. In some
        installations these scripts are duplicated in "/hrtest" or similar,
        and references to utils should be removed from there as well.

      o Remove the file:

        user/ASP/HA_DIRECT_DEP_DTL/HA_DIRECT_DEP_DTL_save.asp

        (the script may be named differently on non-Australian sites).


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For additional information or assistance, please contact the HELP Desk by 
telephone or Not Protectively Marked information may be sent via 
EMail to: uniras@xxxxxxxxxxxx

Office Hours:
Mon - Fri: 08:30 - 17:00 Hrs
Tel: +44 (0) 870 487 0748 Ext 4511
Fax: +44 (0) 870 487 0749

Outside of Office Hours:
On Call Duty Officer:
Tel: +44 (0) 870 487 0748 and follow the prompts

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UNIRAS wishes to acknowledge the contributions of PeopleSoft for the information 
contained in this Briefing. 
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This Briefing contains the information released by the original author. Some 
of the information may have changed since it was released. If the vulnerability 
affects you, it may be prudent to retrieve the advisory from the canonical site 
to ensure that you receive the most current information concerning that problem.

Reference to any specific commercial product, process, or service by trade 
name, trademark manufacturer, or otherwise, does not constitute or imply 
its endorsement, recommendation, or favouring by UNIRAS or NISCC.  The views 
and opinions of authors expressed within this notice shall not be used for 
advertising or product endorsement purposes.

Neither UNIRAS or NISCC shall also accept responsibility for any errors 
or omissions contained within this briefing notice. In particular, they shall 
not be liable for any loss or damage whatsoever, arising from or in connection 
with the usage of information contained within this notice.

UNIRAS is a member of the Forum of Incident Response and Security Teams (FIRST) 
and has contacts with other international Incident Response Teams (IRTs) in 
order to foster cooperation and coordination in incident prevention, to prompt 
rapid reaction to incidents, and to promote information sharing amongst its 
members and the community at large. 
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<End of UNIRAS Briefing>

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