A vulnerability has been identified in spamdyke, which could be exploited to bypass security restrictions. This issue is caused by an input validation error in the "smtp_filter()" function that does not restrict the DATA command when no valid recipients were specified, which could be exploited by attackers to use a vulnerable spamdyke installation as an open relay.
Credits
Vulnerability reported by the vendor.
ChangeLog
2008-05-28 : Initial release
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