SEC_ERROR_UNKNOWN_ISSUER at archive.org and others

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Paleist
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SEC_ERROR_UNKNOWN_ISSUER at archive.org and others

Post by Paleist » 2019-02-08, 12:20

Yesterday it worked just fine, now this. I know it's not a Pale Moon problem, Chromium doesn't work either.

Same error at https://stackoverflow.com, there are probably even more. What's going on here? :wtf:

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Re: SEC_ERROR_UNKNOWN_ISSUER at archive.org and others

Post by yami_ » 2019-02-08, 12:24

Works here. What is the fingerprint of the certificate you are receiving? The correct (SHA-256) one for stackoverflow.com is 95:3A:A5:72:76:56:E5:1E:0F:EA:E6:72:E2:89:A1:2C:7D:27:16:59:56:04:33:DB:20:71:0B:FF:6A:61:4E:F6.
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Re: SEC_ERROR_UNKNOWN_ISSUER at archive.org and others

Post by Paleist » 2019-02-08, 12:41

I get this:

Code: Select all

C1:B2:9E:C7:13:1C:8E:85:BE:5F:37:EC:B5:31:F3:27:E3:9F:2E:F1:B8:4C:48:95:D7:25:18:C2:BC:E5:69:14

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Re: SEC_ERROR_UNKNOWN_ISSUER at archive.org and others

Post by therube » 2019-02-08, 13:27

What antivirus are you using?
Does it have a feature to "inject" itself into the browser https: stream?
If you disable that "feature"?

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Re: SEC_ERROR_UNKNOWN_ISSUER at archive.org and others

Post by Paleist » 2019-02-08, 13:45

I use Kaspersky AV and have disabled those "functions" right after the installation. I also tried it with completely disabled AV, no change. What is weird is it only happens with some sites (found another one, https://superuser.com), in case of an attack shouldn't it happen with all secure connections?

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Re: SEC_ERROR_UNKNOWN_ISSUER at archive.org and others

Post by yami_ » 2019-02-08, 13:48

If your fingerprint is different it usually means that something is MITM-attacking your connection.
Last edited by yami_ on 2019-02-08, 15:35, edited 1 time in total.
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Re: SEC_ERROR_UNKNOWN_ISSUER at archive.org and others

Post by Paleist » 2019-02-08, 14:03

Seems my router was hacked. I restarted it after my last post and now everything works. Going to change my passwords now...

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Re: SEC_ERROR_UNKNOWN_ISSUER at archive.org and others

Post by Moonchild » 2019-02-08, 14:09

If it affects multiple browsers, you have to look into what might be intercepting your connections.
Most commonly this is locally-installed antivirus/internet security/endpoint protection software, but depending on your environment this may also be similar software installed/activated in your router, or even something redirecting your traffic by taking over DNS.
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