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Error code: SEC_ERROR_UNKNOWN_ISSUER when using vodafone mobile data provider phone hotspot.

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This happens on other websites as well: https://www.exploit-db.com/

Peer’s Certificate issuer is not recognized.

HTTP Strict Transport Security: true HTTP Public Key Pinning: false

Certificate chain:


BEGIN CERTIFICATE-----

MIICpzCCAY+gAwIBAgIRAKwGoGQAAAAAmCY0AAAAAAAwDQYJKoZIhvcNAQELBQAw fzELMAkGA1UEBhMCRVMxDzANBgNVBAgMBk1hZHJpZDEPMA0GA1UEBwwGTWFkcmlk MQ4wDAYDVQQKDAVBbGxvdDEOMAwGA1UECwwFQWxsb3QxLjAsBgNVBAMMJWFsbG90 LmNvbS9lbWFpbEFkZHJlc3M9aW5mb0BhbGxvdC5jb20wHhcNMTYxMjE2MTMwNzQ5 WhcNMjYxMjE2MTMwNzQ5WjAdMRswGQYDVQQDDBJ3d3cuZXhwbG9pdC1kYi5jb20w WTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAQ6cVWKA7AbHU4bIprcBJJbf5Ggu1m2 l7AKSfxW+qP7yVdufqa0G1QUHSAuRSuSH1gY4BLBkCrF1nSUePkDGiP9o0swSTAd BgNVHREEFjAUghJ3d3cuZXhwbG9pdC1kYi5jb20wHQYDVR0OBBYEFBfx8iCjxST9 q2VG6sjqslEAp5nRMAkGA1UdEwQCMAAwDQYJKoZIhvcNAQELBQADggEBAHgjFO4M jlQprOomfaK474+gLvuhl9h0+CQVzxHOZvM7enfi9AAKX2PmjHLnfh3BFKvHqtHs BImhiOx1eP/1aKMAy/RLDPz/5/rEG6pb9V+s1/ByMRPYjRZycfKgO23FfY2FEiZo 8eWuoELjJw186Zy8Y7IunUdlIKx7C9Bm7alBfd9XJSvJgphYqNsSFqwq1m4sOXf7 R1iFIhC7oFPp209LQ6krOHDSxiB9rkQ0rKkpslvGIClesi7SUm/SDQ1OBESnByD9 IXiNPxRUFMefwQ90F12RMalfWnTjbgNqsJHK/Q0u4cIFDXfx+lJ9/PLq+mtC8IZL HfuPiRKqEguiRso=


END CERTIFICATE-----
BEGIN CERTIFICATE-----

MIID3DCCAsSgAwIBAgIBATANBgkqhkiG9w0BAQsFADB/MQswCQYDVQQGEwJFUzEP MA0GA1UECAwGTWFkcmlkMQ8wDQYDVQQHDAZNYWRyaWQxDjAMBgNVBAoMBUFsbG90 MQ4wDAYDVQQLDAVBbGxvdDEuMCwGA1UEAwwlYWxsb3QuY29tL2VtYWlsQWRkcmVz cz1pbmZvQGFsbG90LmNvbTAeFw0xNjEyMTYxMzA3NDlaFw0yNjEyMTYxMzA3NDla MH8xCzAJBgNVBAYTAkVTMQ8wDQYDVQQIDAZNYWRyaWQxDzANBgNVBAcMBk1hZHJp ZDEOMAwGA1UECgwFQWxsb3QxDjAMBgNVBAsMBUFsbG90MS4wLAYDVQQDDCVhbGxv dC5jb20vZW1haWxBZGRyZXNzPWluZm9AYWxsb3QuY29tMIIBIjANBgkqhkiG9w0B AQEFAAOCAQ8AMIIBCgKCAQEAtckdwPaklW7lAUz/jjFnePUeGNG0w9E1ajLq4UZO vol1ESRdiVXJhj43/4NtvFGiw0ujDwh8K5xErtaXx+W+Lk0yw2uXATBtdvr3pdDj cxNjUVYl6iis0lxgKff02fsLHdLvy9hJX08wsBF6NKW9YetM6WznDsWztucfg8a1 QaUxFzwHxKjTaV9+RO1zosUgU6RIZwBJrXnyJPeMdbDeS7+WXIAQT1WlficRckAw 4VX7l90AVXzng+Kf+SErsD0DtOiMS/nawa/0tW6whd6zmSaCtPJg37EBp3BQkpdn RvRCsG9h1aWkBUdFNb0mNbnHDP0dmWrDZEFKNmpeC6LmkQIDAQABo2MwYTAOBgNV HQ8BAf8EBAMCAQYwDwYDVR0TAQH/BAUwAwEB/zAdBgNVHQ4EFgQUqLwqHQ0a0mcp ebqXCx9QL1ibqvcwHwYDVR0jBBgwFoAUqLwqHQ0a0mcpebqXCx9QL1ibqvcwDQYJ KoZIhvcNAQELBQADggEBAHJsGkbv+mGhMHfc5z1UZGsH0rkV0U+tl/6hwutyMHPO tvHCwK30keSqiIz8E0grwkMAiS4Ir1w52hfJB0JndxWv1rBTk5gA5ASruhsNKcgv hDgfuVBwSw7ILX9wkl5J2Eu/ew3TRB8lDO7XX4DF0p2L1DyZl+r0HSB9NgQH4kI7 HSxW0oo34bu+S/u3ycMZ1RjjzzVKtI5S6ydVz2qKVqhuSwuFJnndoKjrzMphwraN cKSTLyIj77FK1IUtiivprXk15/lrlnoK+zIlrCzR/Yl5pBYDjb1VhTLUBzm8uNV/ dlYQqPygZFfK8Al/p1grILXWUHmdOaUX+AoWlitKDJo=


END CERTIFICATE-----

Can you help?

This happens on other websites as well: https://www.exploit-db.com/ Peer’s Certificate issuer is not recognized. HTTP Strict Transport Security: true HTTP Public Key Pinning: false Certificate chain: -----BEGIN CERTIFICATE----- MIICpzCCAY+gAwIBAgIRAKwGoGQAAAAAmCY0AAAAAAAwDQYJKoZIhvcNAQELBQAw fzELMAkGA1UEBhMCRVMxDzANBgNVBAgMBk1hZHJpZDEPMA0GA1UEBwwGTWFkcmlk MQ4wDAYDVQQKDAVBbGxvdDEOMAwGA1UECwwFQWxsb3QxLjAsBgNVBAMMJWFsbG90 LmNvbS9lbWFpbEFkZHJlc3M9aW5mb0BhbGxvdC5jb20wHhcNMTYxMjE2MTMwNzQ5 WhcNMjYxMjE2MTMwNzQ5WjAdMRswGQYDVQQDDBJ3d3cuZXhwbG9pdC1kYi5jb20w WTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAQ6cVWKA7AbHU4bIprcBJJbf5Ggu1m2 l7AKSfxW+qP7yVdufqa0G1QUHSAuRSuSH1gY4BLBkCrF1nSUePkDGiP9o0swSTAd BgNVHREEFjAUghJ3d3cuZXhwbG9pdC1kYi5jb20wHQYDVR0OBBYEFBfx8iCjxST9 q2VG6sjqslEAp5nRMAkGA1UdEwQCMAAwDQYJKoZIhvcNAQELBQADggEBAHgjFO4M jlQprOomfaK474+gLvuhl9h0+CQVzxHOZvM7enfi9AAKX2PmjHLnfh3BFKvHqtHs BImhiOx1eP/1aKMAy/RLDPz/5/rEG6pb9V+s1/ByMRPYjRZycfKgO23FfY2FEiZo 8eWuoELjJw186Zy8Y7IunUdlIKx7C9Bm7alBfd9XJSvJgphYqNsSFqwq1m4sOXf7 R1iFIhC7oFPp209LQ6krOHDSxiB9rkQ0rKkpslvGIClesi7SUm/SDQ1OBESnByD9 IXiNPxRUFMefwQ90F12RMalfWnTjbgNqsJHK/Q0u4cIFDXfx+lJ9/PLq+mtC8IZL HfuPiRKqEguiRso= -----END CERTIFICATE----- -----BEGIN CERTIFICATE----- MIID3DCCAsSgAwIBAgIBATANBgkqhkiG9w0BAQsFADB/MQswCQYDVQQGEwJFUzEP MA0GA1UECAwGTWFkcmlkMQ8wDQYDVQQHDAZNYWRyaWQxDjAMBgNVBAoMBUFsbG90 MQ4wDAYDVQQLDAVBbGxvdDEuMCwGA1UEAwwlYWxsb3QuY29tL2VtYWlsQWRkcmVz cz1pbmZvQGFsbG90LmNvbTAeFw0xNjEyMTYxMzA3NDlaFw0yNjEyMTYxMzA3NDla MH8xCzAJBgNVBAYTAkVTMQ8wDQYDVQQIDAZNYWRyaWQxDzANBgNVBAcMBk1hZHJp ZDEOMAwGA1UECgwFQWxsb3QxDjAMBgNVBAsMBUFsbG90MS4wLAYDVQQDDCVhbGxv dC5jb20vZW1haWxBZGRyZXNzPWluZm9AYWxsb3QuY29tMIIBIjANBgkqhkiG9w0B AQEFAAOCAQ8AMIIBCgKCAQEAtckdwPaklW7lAUz/jjFnePUeGNG0w9E1ajLq4UZO vol1ESRdiVXJhj43/4NtvFGiw0ujDwh8K5xErtaXx+W+Lk0yw2uXATBtdvr3pdDj cxNjUVYl6iis0lxgKff02fsLHdLvy9hJX08wsBF6NKW9YetM6WznDsWztucfg8a1 QaUxFzwHxKjTaV9+RO1zosUgU6RIZwBJrXnyJPeMdbDeS7+WXIAQT1WlficRckAw 4VX7l90AVXzng+Kf+SErsD0DtOiMS/nawa/0tW6whd6zmSaCtPJg37EBp3BQkpdn RvRCsG9h1aWkBUdFNb0mNbnHDP0dmWrDZEFKNmpeC6LmkQIDAQABo2MwYTAOBgNV HQ8BAf8EBAMCAQYwDwYDVR0TAQH/BAUwAwEB/zAdBgNVHQ4EFgQUqLwqHQ0a0mcp ebqXCx9QL1ibqvcwHwYDVR0jBBgwFoAUqLwqHQ0a0mcpebqXCx9QL1ibqvcwDQYJ KoZIhvcNAQELBQADggEBAHJsGkbv+mGhMHfc5z1UZGsH0rkV0U+tl/6hwutyMHPO tvHCwK30keSqiIz8E0grwkMAiS4Ir1w52hfJB0JndxWv1rBTk5gA5ASruhsNKcgv hDgfuVBwSw7ILX9wkl5J2Eu/ew3TRB8lDO7XX4DF0p2L1DyZl+r0HSB9NgQH4kI7 HSxW0oo34bu+S/u3ycMZ1RjjzzVKtI5S6ydVz2qKVqhuSwuFJnndoKjrzMphwraN cKSTLyIj77FK1IUtiivprXk15/lrlnoK+zIlrCzR/Yl5pBYDjb1VhTLUBzm8uNV/ dlYQqPygZFfK8Al/p1grILXWUHmdOaUX+AoWlitKDJo= -----END CERTIFICATE----- Can you help?

All Replies (4)

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Try changing DNS over HTTPS (DoH) to "Off" or "Max Protection" and in Connection Settings change "Use system proxy settings" to "No proxy".

Untick "Allow Firefox to automatically trust third-party root certificates you install".

Does it still happen in Troubleshoot Mode?

Helpful?

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zeroknight said

Try changing DNS over HTTPS (DoH) to "Off" or "Max Protection" and in Connection Settings change "Use system proxy settings" to "No proxy". Untick "Allow Firefox to automatically trust third-party root certificates you install". Does it still happen in Troubleshoot Mode?

The issue remains after following all of these. I can access the websites that raise the error with tor.

Helpful?

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Try to rename the cert9.db file (cert9OLD.db) and remove a possible previously used cert8.db file in the Firefox profile folder with Firefox closed to remove intermediate certificates and exceptions that Firefox has cached.

If this has helped to solve the problem then you can remove the renamed cert9OLD.db file. Otherwise you can undo the rename and restore cert9.db.

You can use the button on the "Help -> More Troubleshooting Information" (about:support) to go to the current Firefox profile folder or use the about:profiles page (Root directory).

Helpful?

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cor-el said

Try to rename the cert9.db file (cert9OLD.db) and remove a possible previously used cert8.db file in the Firefox profile folder with Firefox closed to remove intermediate certificates and exceptions that Firefox has cached. If this has helped to solve the problem then you can remove the renamed cert9OLD.db file. Otherwise you can undo the rename and restore cert9.db. You can use the button on the "Help -> More Troubleshooting Information" (about:support) to go to the current Firefox profile folder or use the about:profiles page (Root directory).

The problem remains after trying this. I think I will just try and use tor for websites like this.

Helpful?

Bia biabia

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