ProFTPD 'mod_sftp' Module Integer Overflow Vulnerability

BID:46183

Info

ProFTPD 'mod_sftp' Module Integer Overflow Vulnerability

Bugtraq ID: 46183
Class: Boundary Condition Error
CVE: CVE-2011-1137
Remote: Yes
Local: No
Published: Feb 07 2011 12:00AM
Updated: Apr 13 2015 09:34PM
Credit: Kingcope
Vulnerable: TJ Saunders ProFTPD 0
Slackware Linux x86_64 -current
Slackware Linux 13.1 x86_64
Slackware Linux 13.1
Slackware Linux 13.0 x86_64
Slackware Linux 13.0
Slackware Linux 12.2
Slackware Linux 12.1
Slackware Linux 12.0
Slackware Linux 11.0
Slackware Linux -current
Gentoo Linux
Debian Linux 5.0 sparc
Debian Linux 5.0 s/390
Debian Linux 5.0 powerpc
Debian Linux 5.0 mipsel
Debian Linux 5.0 mips
Debian Linux 5.0 m68k
Debian Linux 5.0 ia-64
Debian Linux 5.0 ia-32
Debian Linux 5.0 hppa
Debian Linux 5.0 armel
Debian Linux 5.0 arm
Debian Linux 5.0 amd64
Debian Linux 5.0 alpha
Debian Linux 5.0
Not Vulnerable:

Discussion

ProFTPD 'mod_sftp' Module Integer Overflow Vulnerability

The 'mod_sftp' module for ProFTPD is prone to an integer-overflow vulnerability because the application fails to perform adequate boundary-checks on user-supplied data.

Successfully exploiting this issue allows attackers to execute arbitrary code in the context of the vulnerable application. Failed exploit attempts will result in a denial-of-service condition.

Exploit / POC

ProFTPD 'mod_sftp' Module Integer Overflow Vulnerability

The following proof-of-concept is available:

Solution / Fix

ProFTPD 'mod_sftp' Module Integer Overflow Vulnerability

Solution:
Updates are available. Please see the references for more information.


Slackware Linux 13.0 x86_64

Slackware Linux 12.1

Slackware Linux x86_64 -current

Slackware Linux 12.0

Slackware Linux -current

Slackware Linux 13.0

Slackware Linux 12.2

Slackware Linux 13.1 x86_64

Slackware Linux 11.0

Slackware Linux 13.1

References

ProFTPD 'mod_sftp' Module Integer Overflow Vulnerability

References:

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