Sårbarhed Detalje Syn
Legend :
critical
high
medium
low
other
| id | 43156 |
|---|
| Risiko | other |
|---|
| Familie | Misc. |
|---|
| Kategori | infos |
|---|
| Navn | ntpd Mode 7 Error Response Packet Loop DoS |
|---|
| Sammenfatning | Checks if the remote ntpd response to mode 7 error response |
|---|
| Beskrivelse | Synopsis :
The remote network time service has a denial of service
vulnerability.
Description :
The version of ntpd running on the remote host has a denial of
service vulnerability. It responds to mode 7 error packets with its
own mode 7 error packets. A remote attacker could exploit this by
sending a mode 7 error response with a spoofed IP header, setting the
source and destination IP addresses to the IP address of the target.
This would cause ntpd to respond to itself endlessly, consuming
excessive amounts of CPU, resulting in a denial of service.
See also :
https://support.ntp.org/bugs/show_bug.cgi?id=1331
http://www.nessus.org/u?3a07ed05 (vendor advisory)
Solution :
Upgrade to NTP 4.2.4p8 or later.
Risk factor :
Medium / CVSS Base Score : 6.4
(CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P)
|
|---|
| CVE |
CVE-2009-3563 |
| Bugtraq |
37255 |
| Copyright |
(C) 2009 Tenable Network Security, Inc. |
|
|