Re: security hole -- anynomous user can send email from my postfix

From: JOYDEEP (no email)
Date: Thu Apr 05 2007 - 00:37:24 EDT

  • Next message: Mr Havercamp: "Messages Marked As Spam From Static IP"

    mouss wrote:
    > JOYDEEP wrote:
    >> Charles Marcus wrote:
    >>
    >>>>>> I have done smtpd_recipient_restrictions = reject_unlisted_sender
    >>>>>>
    >>>>>> and now I can't send mail even as a valid user. have I done anything
    >>>>>> wrong here ?
    >>>>>> please suggest.
    >>>>>>
    >>>>> Logs? postconf -n (to prove you made the changes)?
    >>>>>
    >>>> here is postconf -n
    >>>>
    >>> Ok - but what about logs? When troubleshooting this kind of thing, you
    >>> should always provide the logs of an attempt to do whatever is failing
    >>> - this will usually tell you what is wrong, or at least point you in
    >>> the right direction.
    >>>
    >>>
    >> log reports
    >> ---------------------------------
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: dict_ldap_get_values[1]:
    >> Search found 0 match(es)
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: dict_ldap_get_values[1]:
    >> Leaving dict_ldap_get_values
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: dict_ldap_lookup: Search
    >> returned nothing
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: maps_find:
    >> virtual_alias_maps: @kolkatainfoservices.in: not found
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: mail_addr_find:
    >> -> (not found)
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: send attr request = lookup
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: send attr table =
    >> unix:passwd.byname
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: send attr flags = 64
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: send attr key =
    >>
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: private/proxymap socket:
    >> wanted attribute: status
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: input attribute name: status
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: input attribute value: 1
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: private/proxymap socket:
    >> wanted attribute: value
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: input attribute name: value
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: input attribute value: (end)
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: private/proxymap socket:
    >> wanted attribute: (list terminator)
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: input attribute name: (end)
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: dict_proxy_lookup:
    >> table=unix:passwd.byname flags=0100 key= ->
    >> status=1 result=
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: maps_find:
    >> local_recipient_maps: : not found
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: send attr request = lookup
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: send attr table =
    >> unix:passwd.byname
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: send attr flags = 64
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: send attr key = aftab
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: private/proxymap socket:
    >> wanted attribute: status
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: input attribute name: status
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: input attribute value: 1
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: private/proxymap socket:
    >> wanted attribute: value
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: input attribute name: value
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: input attribute value: (end)
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: private/proxymap socket:
    >> wanted attribute: (list terminator)
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: input attribute name: (end)
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: dict_proxy_lookup:
    >> table=unix:passwd.byname flags=0100 key=aftab -> status=1 result=
    >> Apr 3 13:34:32 linux postfix/smtpd[8498]: maps_find:
    >> local_recipient_maps: aftab: not found
    >>
    >
    > so user isn't found in local_recipient_maps. is "aftab" in your
    > /etc/passwd?

    no; "aftab" is in the LDAP
    >
    >


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