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iChain Mutual Authentication Unauthorised Resource Access
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Secunia Advisory:
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SA14010
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Release Date:
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2005-01-27
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Popularity:
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5,783 views
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Critical:
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Less critical
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Impact:
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Security Bypass
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Where:
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From local network
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Solution Status:
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Vendor Workaround
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| Software: | Novell iChain 2.x
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Description:
A security issue has been reported in Novell iChain, which potentially can be exploited by malicious people to bypass certain security restrictions.
It is possible to gain unauthorised access to protected resources accelerated by an iChain server using SSL Certificate Mutual Authentication by creating a client certificate signed by any iChain server's ICS_TREE CA (Certificate Authority).
Successful exploitation requires:
1) Knowledge of an email address or piece of information from the client certificate that matches an attribute from the eDirectory LDAP database authenticated against.
2) Certificate Mapping matches an internal user.
3) Accelerator uses auto-created SSL certificate, internally signed SSL certificate, or externally signed SSL certificate but ICS_TREE Selfsigned Certificate has been imported to iChains Trusted Root store.
4) The ability to create a certificate that is signed by a CA in the iChain's Trusted Root store.
Solution:
The vendor recommends the following when setting iChain up for mutual authentication:
* Create externally signed certificates for any accelerator using mutual authentication.
* Never import the ICS_TREE CA Selfsigned Certificate to iChain's Trusted Root store.
Provided and/or discovered by:
Reported by vendor.
Original Advisory:
http://support.novell.com/cgi-bin/search/searchtid.cgi?/10096315.htm
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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