42873 ssl medium strength cipher suites supportd(sweet32)

Support for security such as Firewalls and securing linux
Post Reply
mania
Posts: 49
Joined: 2020/12/19 05:55:37

42873 ssl medium strength cipher suites supportd(sweet32)

Post by mania » 2021/11/06 11:17:08

hi,
I have below vulnerability in centos7.6 , how can I get ride of that?
42873 ssl medium strength cipher suites supportd(sweet32)

tunk
Posts: 1206
Joined: 2017/02/22 15:08:17

Re: 42873 ssl medium strength cipher suites supportd(sweet32)

Post by tunk » 2021/11/06 11:59:52

I think the general answer to this is: yum update
CentOS 7.6 has a few years of (serious) accumulated security problems.

User avatar
TrevorH
Site Admin
Posts: 33218
Joined: 2009/09/24 10:40:56
Location: Brighton, UK

Re: 42873 ssl medium strength cipher suites supportd(sweet32)

Post by TrevorH » 2021/11/06 16:18:39

Yes, you have far more to worry about from being 3+ years out of date than you do from supporting weak ciphers. And if this is for Apache httpd then it's most likely to need tweaks to /etc/httpd/conf.d/ssl.conf to disable them. But yum update is several hundred times more important.
The future appears to be RHEL or Debian. I think I'm going Debian.
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 and 6 are deadest, do not use them.
Use the FAQ Luke

mania
Posts: 49
Joined: 2020/12/19 05:55:37

Re: 42873 ssl medium strength cipher suites supportd(sweet32)

Post by mania » 2021/11/08 06:02:18

Hi, unfortunately I dont have internet access. second , there is not such a path(/etc/httpd/conf.d/ssl.conf) in my server maybe it is due to nginx installation instead of apache. would you please tell what are weak ciphers and how can I disable them from nginx and ssh?

User avatar
jlehtone
Posts: 4530
Joined: 2007/12/11 08:17:33
Location: Finland

Re: 42873 ssl medium strength cipher suites supportd(sweet32)

Post by jlehtone » 2021/11/08 06:43:55

Whom do you expect to exploit your vulnerabilities?

mania
Posts: 49
Joined: 2020/12/19 05:55:37

Re: 42873 ssl medium strength cipher suites supportd(sweet32)

Post by mania » 2021/11/08 07:02:11

someone who can access the server even from other systems that have internet access or even unsatisfied clerks

mania
Posts: 49
Joined: 2020/12/19 05:55:37

Re: 42873 ssl medium strength cipher suites supportd(sweet32)

Post by mania » 2021/11/08 07:04:01

hi, There is not such a path(/etc/httpd/conf.d/ssl.conf) in my server maybe it is due to nginx installation instead of apache. would you please tell what are weak ciphers and how can I disable them from nginx and ssh?

User avatar
jlehtone
Posts: 4530
Joined: 2007/12/11 08:17:33
Location: Finland

Re: 42873 ssl medium strength cipher suites supportd(sweet32)

Post by jlehtone » 2021/11/08 08:44:30

mania wrote:
2021/11/08 07:02:11
someone who can access the server even from other systems that have internet access
If it is possible to have a system that is connected to both your server and inet, then why don't you have one to proxy updates into your server? There is no strong excuse not to update a server that can be accessed by non-isolated clients.


The /etc/httpd/conf.d/ssl.conf is provided by package 'mod_ssl' (SSL/TLS module for the Apache HTTP Server). The nginx probably has its own SSL/TLS implementation and configuration.

You can read man sshd_config and whatever documentation nginx has.

Post Reply