Improve company productivity with a Business Account.Sign Up

x
?
Solved

How to secure Portmapper on Centos server

Posted on 2013-06-17
1
Medium Priority
?
773 Views
Last Modified: 2013-07-03
Hi,

From my PCI vulnerability scan i have discovered that i need to close down the service sunrpcportmap on my dedicated web server.  

I've found some iptable instructions to this end: .

iptables -A INPUT -p tcp -s! 192.168.0.0/24 --dport 111 -j DROP
iptables -A INPUT -p udp -s! 192.168.0.0/24  --dport 111 -j DROP

iptables -A INPUT -p tcp -s 127.0.0.1  --dport 111 -j ACCEPT

but am a wee bit confused about what IP/IP range to allow?

If it helps, here's what rpcinfo -p pumps out

   program vers proto   port  service
    100000    4   tcp    111  portmapper
    100000    3   tcp    111  portmapper
    100000    2   tcp    111  portmapper
    100000    4   udp    111  portmapper
    100000    3   udp    111  portmapper
    100000    2   udp    111  portmapper

Can someone explain this to me/advise, please?
0
Comment
Question by:EyeBallInSalt
1 Comment
 
LVL 19

Accepted Solution

by:
Gabriel Orozco earned 1500 total points
ID: 39255205
0

Featured Post

NEW Internet Security Report Now Available!

WatchGuard’s Threat Lab is a group of dedicated threat researchers committed to helping you stay ahead of the bad guys by providing in-depth analysis of the top security threats to your network.  Check out this quarters report on the threats that shook the industry in Q4 2017.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

The Cyber News Rundown brings you the latest happenings in cyber news weekly. Who am I? I’m Connor Madsen, a Webroot Threat Research Analyst, and a guy with a passion for all things security. Any more questions? Just ask.
The recent Petya-like ransomware attack served a big blow to hundreds of banks, corporations and government offices The Acronis blog takes a closer look at this damaging worm to see what’s behind it – and offers up tips on how you can safeguard your…
Watch the video to know the process of migration of Exchange or Office 365 mailboxes in absence of MS Outlook. It is an eminent tool which can easily migrate Public, Archive user mailboxes from one another Exchange server and Office 365. Kernel Migr…
Watch the software video of Kernel Import PST to Office 365 tools which can easily import PST and OST files to Office 365 for bulk mailboxes. The process of migration is simple and user can map source and destination mailboxes and easily import data…

595 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question