11:28 a.m.
I want to track what people are doing when then change their userid.
Basically I would like to write :
-a exit,never -F arch=b32 -S all -F auid=4294967295
-a exit,never -F arch=b64 -S all -F auid=4294967295
-a exit,always -F arch=b32 -S all -F auid>1000 -F uid!=auid -k userchange
-a exit,always -F arch=b64 -S all -F auid>1000 -F uid!=auid -k userchange
However it seems that it's not a valid syntax.
Is there a way to achieve that.
Philippe
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11:43 a.m.
On Wednesday, October 09, 2013 06:28:49 PM Maupertuis Philippe wrote:
I want to track what people are doing when then change their
userid.
Basically I would like to write :
-a exit,never -F arch=b32 -S all -F auid=4294967295
-a exit,never -F arch=b64 -S all -F auid=4294967295
-a exit,always -F arch=b32 -S all -F auid>1000 -F uid!=auid -k userchange
-a exit,always -F arch=b64 -S all -F auid>1000 -F uid!=auid -k userchange
However it seems that it's not a valid syntax.
Is there a way to achieve that.
Yes there is. It requires a newish kernel and user space. But the rules are like this:
-a always,exit -F arch=b32 -S all -F auid!=4294967295 -C auid!=uid
-a exit,always -F arch=b32 -S all -F auid>1000 -F auid!=4294967295 -C auid!=uid -k
userchange
And the same for b64.
-Steve
2:12 a.m.
Thanks for the quick reply.
Unfortunately, I guess that a newish kernel means newer than those available on Redhat
5/6.
I tried on a 2.6.32-358.18.1 kernel and got "Multiple rule insert/delete operations
are not allowed"
Philippe
-----Message d'origine-----
De : Steve Grubb [mailto:sgrubb@redhat.com]
Envoyé : mercredi 9 octobre 2013 18:43
À : linux-audit(a)redhat.com
Cc : Maupertuis Philippe
Objet : Re: Auditing only when auid and uid differ
On Wednesday, October 09, 2013 06:28:49 PM Maupertuis Philippe wrote:
I want to track what people are doing when then change their
userid.
Basically I would like to write :
-a exit,never -F arch=b32 -S all -F auid=4294967295 -a exit,never -F
arch=b64 -S all -F auid=4294967295 -a exit,always -F arch=b32 -S all
-F auid>1000 -F uid!=auid -k userchange -a exit,always -F arch=b64 -S
all -F auid>1000 -F uid!=auid -k userchange
However it seems that it's not a valid syntax.
Is there a way to achieve that.
Yes there is. It requires a newish kernel and user space. But the rules are like this:
-a always,exit -F arch=b32 -S all -F auid!=4294967295 -C auid!=uid -a exit,always -F
arch=b32 -S all -F auid>1000 -F auid!=4294967295 -C auid!=uid -k userchange
And the same for b64.
-Steve
Ce message et les pièces jointes sont confidentiels et réservés à l'usage exclusif de
ses destinataires. Il peut également être protégé par le secret professionnel. Si vous
recevez ce message par erreur, merci d'en avertir immédiatement l'expéditeur et de
le détruire. L'intégrité du message ne pouvant être assurée sur Internet, la
responsabilité de Worldline ne pourra être recherchée quant au contenu de ce message. Bien
que les meilleurs efforts soient faits pour maintenir cette transmission exempte de tout
virus, l'expéditeur ne donne aucune garantie à cet égard et sa responsabilité ne
saurait être recherchée pour tout dommage résultant d'un virus transmis.
This e-mail and the documents attached are confidential and intended solely for the
addressee; it may also be privileged. If you receive this e-mail in error, please notify
the sender immediately and destroy it. As its integrity cannot be secured on the Internet,
the Worldline liability cannot be triggered for the message content. Although the sender
endeavours to maintain a computer virus-free network, the sender does not warrant that
this transmission is virus-free and will not be liable for any damages resulting from any
virus transmitted.
2:25 a.m.
It does work on Redhat 6, it was my mistake.
Philippe
-----Message d'origine-----
De : Maupertuis Philippe
Envoyé : jeudi 10 octobre 2013 09:13
À : linux-audit(a)redhat.com
Objet : RE: Auditing only when auid and uid differ
Thanks for the quick reply.
Unfortunately, I guess that a newish kernel means newer than those available on Redhat
5/6.
I tried on a 2.6.32-358.18.1 kernel and got "Multiple rule insert/delete operations
are not allowed"
Philippe
-----Message d'origine-----
De : Steve Grubb [mailto:sgrubb@redhat.com] Envoyé : mercredi 9 octobre 2013 18:43 À :
linux-audit(a)redhat.com Cc : Maupertuis Philippe Objet : Re: Auditing only when auid and
uid differ
On Wednesday, October 09, 2013 06:28:49 PM Maupertuis Philippe wrote:
I want to track what people are doing when then change their
userid.
Basically I would like to write :
-a exit,never -F arch=b32 -S all -F auid=4294967295 -a exit,never -F
arch=b64 -S all -F auid=4294967295 -a exit,always -F arch=b32 -S all
-F auid>1000 -F uid!=auid -k userchange -a exit,always -F arch=b64 -S
all -F auid>1000 -F uid!=auid -k userchange
However it seems that it's not a valid syntax.
Is there a way to achieve that.
Yes there is. It requires a newish kernel and user space. But the rules are like this:
-a always,exit -F arch=b32 -S all -F auid!=4294967295 -C auid!=uid -a exit,always -F
arch=b32 -S all -F auid>1000 -F auid!=4294967295 -C auid!=uid -k userchange
And the same for b64.
-Steve
Ce message et les pièces jointes sont confidentiels et réservés à l'usage exclusif de
ses destinataires. Il peut également être protégé par le secret professionnel. Si vous
recevez ce message par erreur, merci d'en avertir immédiatement l'expéditeur et de
le détruire. L'intégrité du message ne pouvant être assurée sur Internet, la
responsabilité de Worldline ne pourra être recherchée quant au contenu de ce message. Bien
que les meilleurs efforts soient faits pour maintenir cette transmission exempte de tout
virus, l'expéditeur ne donne aucune garantie à cet égard et sa responsabilité ne
saurait être recherchée pour tout dommage résultant d'un virus transmis.
This e-mail and the documents attached are confidential and intended solely for the
addressee; it may also be privileged. If you receive this e-mail in error, please notify
the sender immediately and destroy it. As its integrity cannot be secured on the Internet,
the Worldline liability cannot be triggered for the message content. Although the sender
endeavours to maintain a computer virus-free network, the sender does not warrant that
this transmission is virus-free and will not be liable for any damages resulting from any
virus transmitted.
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participants (2)
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Maupertuis Philippe -
Steve Grubb