Re: TLS cipher strength diffs between nmap and SSL Labs

[Christoph Gruber <list () guru at>]

Hi!

Just my few cents on your question:
Use the tools you mentioned to get the facts and a brief proposal how to categorise them, but please judge on your own 
following your needs and policies. There is no hard rule that says, this is secure, and that is not, the really 
important question is: Is it secure enough for my needs now?

-- 
Christoph Gruber

> Am 11.08.2020 um 02:16 schrieb Chen, Jerry G <Jerry.Chen () invesco com>:
>
> 
> Hi – I used Qualys SSL Labs to test our company’s website. The results are here at 
> https://www.ssllabs.com/ssltest/analyze.html?d=www.invesco.com&hideResults=on.
> It finds 12 ciphers used with only 2 being strong.
> <Picture (Device Independent Bitmap) 1.jpg>
>  
> But when I use nmap to scan the site, all 12 ciphers are listed as strong.
>  
> Do you know whose resultst are more accurate?
>  
> Thanks!
> Jerry
>  
> > nmap -sV --script ssl-enum-ciphers -p 443 www.invesco.com
>  
> Starting Nmap 6.40 ( http://nmap.org ) at 2020-07-28 12:04 CDT
> Nmap scan report for www.invesco.com (142.148.253.74)
> Host is up (0.0012s latency).
> PORT    STATE SERVICE  VERSION
> 443/tcp open  ssl/http Apache httpd
> | ssl-enum-ciphers:
> |   SSLv3: No supported ciphers found
> |   TLSv1.0: No supported ciphers found
> |   TLSv1.1: No supported ciphers found
> |   TLSv1.2:
> |     ciphers:
> |       TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA - strong
> |       TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 - strong
> |       TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 - strong
> |       TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA - strong
> |       TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 - strong
> |       TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 - strong
> |       TLS_RSA_WITH_AES_128_CBC_SHA - strong
> |       TLS_RSA_WITH_AES_128_CBC_SHA256 - strong
> |       TLS_RSA_WITH_AES_128_GCM_SHA256 - strong
> |       TLS_RSA_WITH_AES_256_CBC_SHA - strong
> |       TLS_RSA_WITH_AES_256_CBC_SHA256 - strong
> |       TLS_RSA_WITH_AES_256_GCM_SHA384 - strong
> |     compressors:
> |       NULL
> |_  least strength: strong
>  
> Service detection performed. Please report any incorrect results at http://nmap.org/submit/ .
> Nmap done: 1 IP address (1 host up) scanned in 12.25 seconds
>  
>  
>  
>  
>  
> ****************************************************************
> Confidentiality Note: The information contained in this 
> message, and any attachments, may contain confidential 
> and/or privileged material. It is intended solely for the 
> person(s) or entity to which it is addressed. Any review, 
> retransmission, dissemination, or taking of any action in
> reliance upon this information by persons or entities other 
> than the intended recipient(s) is prohibited. If you received 
> this in error, please contact the sender and delete the 
> material from any device.
> ****************************************************************
> _______________________________________________
> Sent through the dev mailing list
> https://nmap.org/mailman/listinfo/dev
> Archived at http://seclists.org/nmap-dev/
_______________________________________________
Sent through the dev mailing list
https://nmap.org/mailman/listinfo/dev
Archived at http://seclists.org/nmap-dev/