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has been released. The new version includes many new and advanced
features, which makes it even easier to stay patched.

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TITLE:
Ipswitch WS_FTP Server FTP Log Server Denial of Service

SECUNIA ADVISORY ID:
SA28761

VERIFY ADVISORY:
http://secunia.com/advisories/28761/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From local network

SOFTWARE:
WS_FTP Server 6.x
http://secunia.com/product/14782/

DESCRIPTION:
Luigi Auriemma has discovered a vulnerability in Ipswitch WS_FTP
Server, which can be exploited by malicious people to cause a DoS
(Denial of Service).

The vulnerability is caused due to the improper handling of UDP
packets within the FTP Log Server. This can be exploited to cause the
service to stop responding to further log requests by sending multiple
overly large datagrams (over 4096 bytes) within a short period of time
to port 5151/UDP.

The vulnerability is confirmed in FTP Log Server (ftplogsrv.exe)
version 7.9.14.0 included in WS_FTP Server 6.1. Other versions may
also be affected.

SOLUTION:
Restrict access to port 5151/UDP.

PROVIDED AND/OR DISCOVERED BY:
Luigi Auriemma

ORIGINAL ADVISORY:
http://aluigi.altervista.org/adv/ftplogsrvz-adv.txt

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About:
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