||Home : Advisories : Eudora Vulnerability|
||The Freedom Factory
||19th September 2000
SIMARD SECURITY ADVISORY 20000919.1
by Louis-Eric Simard, Security Consultant (Louis-Eric@Simard.com)
September 19th 2000
Windows 2000 [5.00.2195] running Eudora 4.3.2. Later versions of Eudora
have not been tested.
A malicious intruder can easily take control of a Windows environment by
simply sending one or more e-mails containing attachments conforming to
the description set in the Georgi Guninski security advisory #21 if the
receiver is using Eudora as a mail client.
Eudora saves all attachments in a single directory upon receiving the
mail; a mail message need not be open for its attachment to be decoded
and saved in that common directory. An intruder need only send an e-mail
with a trojaned DLL as described in the Guninski advisory, along with
or followed by an e-mail containing a Word document.
A dummy RICHED20.DLL file is attached here. To test the security hole,
simply mail this file along with the supplied (or any) Word file, then
click on the Word file. After a few seconds, a message box titled
"Gotcha" will appear, indicating "Fake RICHED20.DLL loaded."
Gergi Guninski for pointing out this issue in the first place.
Please send suggestions, updates and comments to Louis-Eric@Simard.com.
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