National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-1999-0523 Detail

Description

ICMP echo (ping) is allowed from arbitrary hosts.

Source:  MITRE      Last Modified:  01/01/1999

Quick Info

CVE Dictionary Entry:
CVE-1999-0523
Original release date:
01/01/1999
Last revised:
12/01/2010
Source:
US-CERT/NIST

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score:
0.0 LOW
Vector:
(AV:N/AC:L/Au:N/C:N/I:N/A:N) (legend)
Impact Subscore:
0.0
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Unknown

Vendor Statements (disclaimer)

Official Statement from Red Hat (09/11/2007)

Red Hat Enterprise Linux by default does respond to ICMP echo requests, although it’s likely that in a production environment those would be filtered by some firewall on entry to your network. However you can happily block ICMP ping responses using iptables if you so wish, but note that there is no known vulnerability in allowing them. For more details, please see: http://kbase.redhat.com/faq/FAQ_43_4304.shtm

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