7:47 p.m.
Redhat es4 x86 monoproc
Kernel 2.6.9-34.EL
Audit 1.0.12-1.EL4
Occasiaonally I get a CWD audit message that has a hexified path in it.
Like this
$1 = "audit(1178324383.479:1566):
cwd=2F70726F632F35373336202864656C6574656429\000
This is "/proc/5736"
The message is coming from a shell process whose current dir is /proc/5736
and 5736 exited The cwd path contains junk after the "6" character - so
audit unstrusted string has hexified it I have not tried with real dirs
Bug?
8:33 a.m.
On Friday 04 May 2007 20:47:19 paul moore wrote:
Occasiaonally I get a CWD audit message that has a hexified path in
it.
Like this
$1 = "audit(1178324383.479:1566):
cwd=2F70726F632F35373336202864656C6574656429\000
This is "/proc/5736"
Could you tell me what you get when you pull this event's record out with
ausearch -i ?
-Steve
11:48 a.m.
No - since I was not running auditd it didn't get written in user space. But
the clip I show is directly from the audit buffer returned by
audit_get_reply (I poked the \0 onto the end of the buffer)
audit(1178324383.479:1566): cwd=2F70726F632F35373336202864656C6574656429\000
-----Original Message-----
From: Steve Grubb [mailto:sgrubb@redhat.com]
Sent: Saturday, May 05, 2007 6:34 AM
To: linux-audit(a)redhat.com
Cc: paul moore
Subject: Re: hexified path in cwd audit message if dir no longer exists
On Friday 04 May 2007 20:47:19 paul moore wrote:
Occasiaonally I get a CWD audit message that has a hexified path in
it.
Like this
$1 = "audit(1178324383.479:1566):
cwd=2F70726F632F35373336202864656C6574656429\000
This is "/proc/5736"
Could you tell me what you get when you pull this event's record out with
ausearch -i ?
-Steve
12:42 p.m.
Aha - it actually says "xxxx (deleted)".
Which is OK I guess. But I would have thought that the unstrusted string
routine would know that this is a string generated by the kernel audit
system and so not escape it
-----Original Message-----
From: Steve Grubb [mailto:sgrubb@redhat.com]
Sent: Saturday, May 05, 2007 6:34 AM
To: linux-audit(a)redhat.com
Cc: paul moore
Subject: Re: hexified path in cwd audit message if dir no longer exists
On Friday 04 May 2007 20:47:19 paul moore wrote:
Occasiaonally I get a CWD audit message that has a hexified path in
it.
Like this
$1 = "audit(1178324383.479:1566):
cwd=2F70726F632F35373336202864656C6574656429\000
This is "/proc/5736"
Could you tell me what you get when you pull this event's record out with
ausearch -i ?
-Steve
12:49 p.m.
On Monday 07 May 2007 13:42, paul moore wrote:
Aha - it actually says "xxxx (deleted)".
That's what I thought it would say.
Which is OK I guess. But I would have thought that the unstrusted
string
routine would know that this is a string generated by the kernel audit
system and so not escape it
Any space in a field value will cause parsing problems. That is the main
reason its escaped.
-Steve
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4 comments
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participants (2)
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paul moore -
Steve Grubb