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MDaemon Insecure Default Directory Permissions
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Secunia Advisory:
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SA21554
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Release Date:
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2006-11-16
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Last Update:
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2006-11-20
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Critical:
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Less critical
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Impact:
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Privilege escalation
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Where:
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Local system
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Solution Status:
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Unpatched
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| Software: | MDaemon 5.x MDaemon 6.x MDaemon 7.x MDaemon 8.x MDaemon 9.x
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| | CVE reference: | CVE-2006-5968 (Secunia mirror)
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This advisory is currently marked as unpatched! - Companies can be alerted when a patch is released! |
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Description: Secunia Research has discovered a security issue in MDaemon, which can be exploited by malicious, local users to gain escalated privileges.
The problem is caused due to the application by default being installed in the "MDaemon" folder in the system root with insecure permissions (granting members of the "Users" group permissions to create files and directories). This can be exploited by e.g. placing a malicious RASAPI32.DLL or MPRAPI.DLL library in the "MDaemon\APP" directory.
Successful exploitation allows execution of arbitrary code with SYSTEM privileges.
The security issue is confirmed in versions 9.0.5, 9.0.6, 9.51, and 9.53. Other versions may also be affected.
NOTE: This is a general problem for the majority of Windows applications when installed outside the "Program Files" folder due to the way libraries are located.
Solution: Set secure permissions on the directory or install in the "Program Files" folder (according to the vendor, this should not have an impact on the functionality of the application).
NOTE: The vendor has attempted to prevent exploitation in later versions by checking for the presence of RASAPI32.DLL in the mentioned folder. However, this only fixes exploitation using this specific filename and not the problem itself.
Provided and/or discovered by: Secunia Research
Changelog: 2006-11-20: Added CVE reference.
Original Advisory: Secunia Research:
http://secunia.com/secunia_research/2006-67/
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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