(Mandrake Issues Fix) ProFTPD ASCII Mode File Upload Buffer Overflow Lets Certain Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1007822 |
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SecurityTracker URL: http://securitytracker.com/id/1007822
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CVE Reference:
CAN-2003-0831
(Links to External Site)
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Date: Sep 27 2003
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Impact:
Execution of arbitrary code via network, Root access via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): Confirmed on 1.2.7, 1.2.8, 1.2.8rc1, 1.2.8rc2, 1.2.9rc1, and 1.2.9rc2
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Description:
A buffer overflow vulnerability was reported in the ProFTPD FTP server. A remote user with upload privileges may be able to obtain root access on the target system.
Internet Security Systems reported that there is a flaw in the processing of inbound ASCII file transfers. A remote user with upload privileges can upload a specially crafted file in ASCII mode and then attempt to download the file to trigger the buffer overflow and execute arbitrary code. The remote user can bypass ProFTPD security checks to cause the code to execute with root level privileges, the report said.
According to the report, the flaw resides in the translation of newline characters.
The CVE number CAN-2003-0831 has been assigned to this issue.
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Impact:
A remote user with file upload privileges can execute arbitrary code on the target system with root privileges.
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Solution:
Mandrake has released a fix.
Mandrake Linux 9.1:
b00bae0743aec3e1decccaf73a356b84 9.1/RPMS/proftpd-1.2.8-1.1.91mdk.i586.rpm
6a85248750d88db30b658ee51fdebcf1 9.1/RPMS/proftpd-anonymous-1.2.8-1.1.91mdk.i586.rpm
c04242b94a7451164e42e96bbf648e5d 9.1/SRPMS/proftpd-1.2.8-1.1.91mdk.src.rpm
Mandrake Linux 9.1/PPC:
a053b5f2fa6e57ee884465385937041f ppc/9.1/RPMS/proftpd-1.2.8-1.1.91mdk.ppc.rpm
55d22b28017dfaab6f2da238d5d8311c ppc/9.1/RPMS/proftpd-anonymous-1.2.8-1.1.91mdk.ppc.rpm
c04242b94a7451164e42e96bbf648e5d ppc/9.1/SRPMS/proftpd-1.2.8-1.1.91mdk.src.rpm
Mandrake Linux 9.2:
1d9b21bcb2a18fa43158c0c0aa25d13d 9.2/RPMS/proftpd-1.2.8-5.1.92mdk.i586.rpm
80c5b73c6e33444e2dd91659c2b897bd 9.2/RPMS/proftpd-anonymous-1.2.8-5.1.92mdk.i586.rpm
ea89351b37a5572fac3f45b27a80b0f3 9.2/SRPMS/proftpd-1.2.8-5.1.92mdk.src.rpm
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Vendor URL: www.proftpd.org/ (Links to External Site)
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Cause:
Boundary error
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Underlying OS:
Linux (Mandriva/Mandrake)
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: 26 Sep 2003 22:50:01 -0000
Subject: MDKSA-2003:095 - Updated proftpd packages fix remote root vulnerability
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
________________________________________________________________________
Mandrake Linux Security Update Advisory
________________________________________________________________________
Package name: proftpd
Advisory ID: MDKSA-2003:095
Date: September 26th, 2003
Affected versions: 9.1, 9.2
________________________________________________________________________
Problem Description:
A vulnerability was discovered by X-Force Research at ISS in ProFTPD's
handling of ASCII translation. An attacker, by downloading a carefully
crafted file, can remotely exploit this bug to create a root shell.
The ProFTPD team encourages all users to upgrade to version 1.2.7 or
higher. The problematic code first appeared in ProFTPD 1.2.7rc1, and
the provided packages are all patched by the ProFTPD team to protect
against this vulnerability.
________________________________________________________________________
References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0831
http://xforce.iss.net/xforce/alerts/id/154
________________________________________________________________________
Updated Packages:
Mandrake Linux 9.1:
b00bae0743aec3e1decccaf73a356b84 9.1/RPMS/proftpd-1.2.8-1.1.91mdk.i586.rpm
6a85248750d88db30b658ee51fdebcf1 9.1/RPMS/proftpd-anonymous-1.2.8-1.1.91mdk.i586.rpm
c04242b94a7451164e42e96bbf648e5d 9.1/SRPMS/proftpd-1.2.8-1.1.91mdk.src.rpm
Mandrake Linux 9.1/PPC:
a053b5f2fa6e57ee884465385937041f ppc/9.1/RPMS/proftpd-1.2.8-1.1.91mdk.ppc.rpm
55d22b28017dfaab6f2da238d5d8311c ppc/9.1/RPMS/proftpd-anonymous-1.2.8-1.1.91mdk.ppc.rpm
c04242b94a7451164e42e96bbf648e5d ppc/9.1/SRPMS/proftpd-1.2.8-1.1.91mdk.src.rpm
Mandrake Linux 9.2:
1d9b21bcb2a18fa43158c0c0aa25d13d 9.2/RPMS/proftpd-1.2.8-5.1.92mdk.i586.rpm
80c5b73c6e33444e2dd91659c2b897bd 9.2/RPMS/proftpd-anonymous-1.2.8-5.1.92mdk.i586.rpm
ea89351b37a5572fac3f45b27a80b0f3 9.2/SRPMS/proftpd-1.2.8-5.1.92mdk.src.rpm
________________________________________________________________________
Bug IDs fixed (see https://qa.mandrakesoft.com for more information):
________________________________________________________________________
To upgrade automatically, use MandrakeUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.
A list of FTP mirrors can be obtained from:
http://www.mandrakesecure.net/en/ftp.php
All packages are signed by MandrakeSoft for security. You can obtain
the GPG public key of the Mandrake Linux Security Team by executing:
gpg --recv-keys --keyserver www.mandrakesecure.net 0x22458A98
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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