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Category:   Application (Web Server/CGI)  >   Mod_frontpage Vendors:   [Multiple Authors/Vendors]
'mod_frontpage' Module for Apache Web Server Has Buffer Overlow in 'fpexec.c' That Allows Remote Users to Execute Arbitrary Code on the System with Root Privileges
SecurityTracker Alert ID:  1003767
SecurityTracker URL:  http://securitytracker.com/id/1003767
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Mar 8 2002
Impact:   Execution of arbitrary code via network, Root access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 1.6.1
Description:   A buffer overflow vulnerability was reported in the mod_frontpage module for the Apache web server. A remote user may be able to gain root acess on the system.

It is reported that fpexec.c contains a buffer overflow. It is also reported that the mod_frontpage binary is configured with set user id (suid) root privileges. As a result, a remote user can apparently trigger the buffer overflow to execute arbitrary code on the server with root privileges. No further details were provided.
Impact:   A remote user may be able to execute arbitrary code on the server with root privileges, giving that user root access on the system.
Solution:   For Mandrake Linux users, updated packages are available. For non-Mandrake users, no solution information is available. However, it is expected that fixes for other Linux/UNIX distributions will be available shortly [and will be posted to the Message History section when we receive further information].

Updated Mandrake packages:

Mandrake Linux 8.0:
0b2760b21addbe6396be4abe6be97305 8.0/RPMS/mod_frontpage-1.6.1-3.1mdk.i586.rpm
2fb9a89afd1385ab60c894f6985284e7 8.0/SRPMS/mod_frontpage-1.6.1-3.1mdk.src.rpm

Mandrake Linux 8.0/ppc:
009635a52c08313eede64f30fff223f2 ppc/8.0/RPMS/mod_frontpage-1.6.1-3.1mdk.ppc.rpm
2fb9a89afd1385ab60c894f6985284e7 ppc/8.0/SRPMS/mod_frontpage-1.6.1-3.1mdk.src.rpm

Mandrake Linux 8.1:
8c2baeebb796353035f8816ed6cdfbed 8.1/RPMS/mod_frontpage-1.6.1-3.1mdk.i586.rpm
2fb9a89afd1385ab60c894f6985284e7 8.1/SRPMS/mod_frontpage-1.6.1-3.1mdk.src.rpm

Mandrake Linux 8.1/ia64:
9d175e164af2e6a39c2d4576e543752e ia64/8.1/RPMS/mod_frontpage-1.6.1-3.1mdk.ia64.rpm
2fb9a89afd1385ab60c894f6985284e7 ia64/8.1/SRPMS/mod_frontpage-1.6.1-3.1mdk.src.rpm
Cause:   Boundary error
Underlying OS:   Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
(FreeBSD Issues Fix) 'mod_frontpage' Module for Apache Web Server Has Buffer Overlow in 'fpexec.c' That Allows Remote Users to Execute Arbitrary Code on the System with Root Privileges   (FreeBSD Security Advisories <security-advisories@FreeBSD.ORG>)
The vendor has released a fix.


 Source Message Contents
Date:  8 Mar 2002 04:30:39 -0000
Subject:  [Security Announce] MDKSA-2002:021 - mod_frontpage update


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

________________________________________________________________________

                Mandrake Linux Security Update Advisory
________________________________________________________________________

Package name:           mod_frontpage
Advisory ID:            MDKSA-2002:021
Date:                   March 7th, 2002
Affected versions:      8.0, 8.1
________________________________________________________________________

Problem Description:

 A problem was found in versions of improved mod_frontpage prior to
 1.6.1 regarding a lack of boundary checks in fpexec.c.  This means that
 the suid root binary is exploitable for buffer overflows.  This could
 be exploited by remote attackers to execute arbitrary code on the
 server with superuser privileges.  Although there are no known exploits
 available, if you use mod_frontpage you are strongly encouraged to
 upgrade.

 This update for Mandrake Linux has been completely reworked and is
 easier to configure and use, as well as supporting the new FrontPage
 2002 extensions.
________________________________________________________________________

References:

________________________________________________________________________

Updated Packages:

 Mandrake Linux 8.0:
 0b2760b21addbe6396be4abe6be97305  8.0/RPMS/mod_frontpage-1.6.1-3.1mdk.i586.rpm
 2fb9a89afd1385ab60c894f6985284e7  8.0/SRPMS/mod_frontpage-1.6.1-3.1mdk.src.rpm

 Mandrake Linux 8.0/ppc:
 009635a52c08313eede64f30fff223f2  ppc/8.0/RPMS/mod_frontpage-1.6.1-3.1mdk.ppc.rpm
 2fb9a89afd1385ab60c894f6985284e7  ppc/8.0/SRPMS/mod_frontpage-1.6.1-3.1mdk.src.rpm

 Mandrake Linux 8.1:
 8c2baeebb796353035f8816ed6cdfbed  8.1/RPMS/mod_frontpage-1.6.1-3.1mdk.i586.rpm
 2fb9a89afd1385ab60c894f6985284e7  8.1/SRPMS/mod_frontpage-1.6.1-3.1mdk.src.rpm

 Mandrake Linux 8.1/ia64:
 9d175e164af2e6a39c2d4576e543752e  ia64/8.1/RPMS/mod_frontpage-1.6.1-3.1mdk.ia64.rpm
 2fb9a89afd1385ab60c894f6985284e7  ia64/8.1/SRPMS/mod_frontpage-1.6.1-3.1mdk.src.rpm
________________________________________________________________________

Bug IDs fixed (see https://qa.mandrakesoft.com for more information):

________________________________________________________________________

To upgrade automatically, use MandrakeUpdate.  The verification of md5
checksums and GPG signatures is performed automatically for you.

If you want to upgrade manually, download the updated package from one 
of our FTP server mirrors and upgrade with "rpm -Fvh *.rpm".  A list of
FTP mirrors can be obtained from:

  http://www.mandrakesecure.net/en/ftp.php

Please verify the update prior to upgrading to ensure the integrity of
the downloaded package.  You can do this with the command:

  rpm --checksig <filename>

All packages are signed by MandrakeSoft for security.  You can obtain
the GPG public key of the Mandrake Linux Security Team from:

  https://www.mandrakesecure.net/RPM-GPG-KEYS

Please be aware that sometimes it takes the mirrors a few hours to 
update.

You can view other update advisories for Mandrake Linux at:

  http://www.mandrakesecure.net/en/advisories/

MandrakeSoft has several security-related mailing list services that
anyone can subscribe to.  Information on these lists can be obtained by
visiting:

  http://www.mandrakesecure.net/en/mlist.php

If you want to report vulnerabilities, please contact

  security@linux-mandrake.com
________________________________________________________________________

Type Bits/KeyID     Date       User ID
pub  1024D/22458A98 2000-07-10 Linux Mandrake Security Team
  <security@linux-mandrake.com>


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