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Disabling TLS 1.1 & 1.3 on Yealink SIP-T31P
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Lilpombo Offline
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Sad Disabling TLS 1.1 & 1.3 on Yealink SIP-T31P
Hello, everyone

So, how can I disabled TLSv1.1 and TLSv1.2 on my Yealink Phones? I want to use just TLSv1.3...


I added this line on the .CFG arquive:

static.security.default_ssl_method = 5

Number 5 activates TLSv1.2; I made a Nessus scan and the Telephone appointed vulnerabilities on TLSv1.1 and TLSv1.2 ciphers. So, the telephone is using the TLS 1.1, 1.2 and 1.3 too;


But... It doesn't works, the telephone didn't disabled TLSv1.1 for using only TLSv1.2; So, now I want do disable both... How can I do this? I didn't find this in the documentation... Huh


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08-23-2022 11:07 PM
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Lilpombo Offline
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Brick RE: Disabling TLS 1.1 & 1.3 on Yealink SIP-T31P
Hi,

Someone can help me with this?
08-25-2022 09:22 PM
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complex1 Offline
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RE: Disabling TLS 1.1 & 1.3 on Yealink SIP-T31P
(08-25-2022 09:22 PM)Lilpombo Wrote:  Hi,

Someone can help me with this?

Hi,

As far as I know, it is not possible to disable the TLS ciphers.
Parameter static.security.default_ssl_method = 6 selects the TLS 1.3 version to use for handshake negotiation between the phone and server.

Kind regards,
Frank.

I am not an employee of Yealink.
Dutch is my native language, not English. Apologies for my imperfect grammar.
Please do not send unsolicited PM messages. I will not answer them.
08-25-2022 11:09 PM
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