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and subject line Bug#286740: apache: log directory should have same permissions
as logfiles (possible information disclosure)
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Date: Tue, 21 Dec 2004 21:41:35 +0000
From: Jan Minar <[EMAIL PROTECTED]>
To: Debian Bug Tracking System <[EMAIL PROTECTED]>
Subject: apache: log directory should have same permissions as logfiles
(possible information disclosure)
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Package: apache
Version: 1.3.33-2
Severity: minor
Tags: security
Hi.
/var/log/apache is world-readable, so users can e.g. check whether
certain operation triggered an error. And given that the error strings
are pretty standardized, they can guess what string has been added to
the logfile, judging by the number of bytes that was appended to the
log.
As this is not very obvious to the system administrator, and as there is
no use of /var/log/apache directory being readable and searchable while
the files in it are not, apart from the information disclosure described
above, I think it should be chmod-ed 750, just as the logs in it are
chmod 640.
Thanks.
Jan.
-- System Information:
Debian Release: 3.1
APT prefers testing
APT policy: (700, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.4.28-jan
Locale: LANG=3DC, LC_CTYPE=3Dcs_CZ.ISO-8859-2 (charmap=3DISO-8859-2)
Versions of packages apache depends on:
ii apache-common 1.3.33-2 Support files for all Apache w=
ebse
ii debconf 1.4.30.10 Debian configuration managemen=
t sy
ii dpkg 1.10.25 Package maintenance system for=
Deb
ii libc6 2.3.2.ds1-18 GNU C Library: Shared librarie=
s an
ii libdb4.2 4.2.52-17 Berkeley v4.2 Database Librari=
es [
ii libexpat1 1.95.8-1 XML parsing C library - runtim=
e li
ii libmagic1 4.12-1 File type determination librar=
y us
ii logrotate 3.7-2 Log rotation utility
ii mime-support 3.28-1 MIME files 'mime.types' & 'mai=
lcap
ii perl 5.8.4-3 Larry Wall's Practical Extract=
ion=20
-- debconf information:
apache/init: true
apache/server-port: 80
apache/document-root: /var/www
apache/server-admin: [EMAIL PROTECTED]
apache/server-name: localhost
* apache/enable-suexec: false
--=20
)^o-o^| jabber: [EMAIL PROTECTED]
| .v K e-mail: jjminar FastMail FM
` - .' phone: +44(0)7981 738 696
\ __/Jan icq: 345 355 493
__|o|__Min=E1=F8 irc: [EMAIL PROTECTED]
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Date: Wed, 22 Dec 2004 09:57:13 +0100
From: Fabio Massimo Di Nitto <[EMAIL PROTECTED]>
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To: Jan Minar <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: Re: Bug#286740: apache: log directory should have same permissions
as logfiles (possible information disclosure)
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tag 286740 - security
thanks
Jan Minar wrote:
| Package: apache
| Version: 1.3.33-2
| Severity: minor
| Tags: security
|
| Hi.
|
| /var/log/apache is world-readable, so users can e.g. check whether
| certain operation triggered an error. And given that the error strings
| are pretty standardized, they can guess what string has been added to
| the logfile, judging by the number of bytes that was appended to the
| log.
|
| As this is not very obvious to the system administrator, and as there is
| no use of /var/log/apache directory being readable and searchable while
| the files in it are not, apart from the information disclosure described
| above, I think it should be chmod-ed 750, just as the logs in it are
| chmod 640.
|
There is no point in such operation. If a user have a local account
it also has at least a few other thousands options to make a DoS on apache.
Fabio
- --
Self-Service law:
The last available dish of the food you have decided to eat, will be
inevitably taken from the person in front of you.
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