----------------------------------------------------------------------

Secunia Survey

Secunia would like to invite you to participate in an electronic survey
evolving the usefulness of our mailing lists. To value your effort
Secunia will offer you free access to the Secunia Security Manager for
three months as well as have a prize draw for an iPod nano.

We hope that you will give us a few minutes of your time, as your
response will help us provide you with better services in the future.
The questionnaire contains 19 questions and it takes approximately 5
minutes to answer the questionnaire.

https://ca.secunia.com/survey/?survey_url=kei933wBid2

The survey is being conducted in accordance with the general Secunia
Security Policy and your answers will of course be kept strictly
confidential. 


Best regards,
Niels Henrik Rasmussen
CEO Secunia

----------------------------------------------------------------------

TITLE:
acFTP USER Command Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA19978

VERIFY ADVISORY:
http://secunia.com/advisories/19978/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
acFTP 1.x
http://secunia.com/product/9764/

DESCRIPTION:
Preddy has discovered a vulnerability in acFTP, which can be
exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error within the handling of
the argument passed to the "USER" command. This can be exploited to
crash the FTP server via an overly long argument that contains
certain character sequences.

Example:
USER A{A{A{ [approximately 2350 bytes]

The vulnerability has been confirmed in version 1.4. Other versions
may also be affected.

SOLUTION:
Filter malicious requests in a proxy or firewall with FTP filtering
capabilities.

PROVIDED AND/OR DISCOVERED BY:
Preddy

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

Unsubscribe: Secunia Security Advisories
http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org

----------------------------------------------------------------------