eMudhra CA distrust discussion

[Azahorscak]

The maintainers locked the issue on this topic, But I am unclear on if the pki settings configuration allows distrusting the default store on an unpatched version. Has anyone successfully circumvented the compromised eMudhra intermediate cert?

[Azahorscak]

related
#4976

[Azahorscak]

Oh I see an apiclient based mitigation in the aws announcement!

apiclient apply <<'EOF'
# emSign ECC Root CA - C3 (O=eMudhra Inc)
# SHA-256 BC:4D:80:9B:15:18:9D:78:DB:3E:1D:8C:F4:F9:72:6A:79:5D:A1:64:3C:A5:F1:35:8E:1D:DB:0E:DC:0D:7E:B3
[settings.pki.emsign-ecc-c3]
trusted = false
data = "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"

# emSign ECC Root CA - G3 (O=eMudhra Technologies Limited)
# SHA-256 86:A1:EC:BA:08:9C:4A:8D:3B:BE:27:34:C6:12:BA:34:1D:81:3E:04:3C:F9:E8:A8:62:CD:5C:57:A3:6B:BE:6B
[settings.pki.emsign-ecc-g3]
trusted = false
data = "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"

# emSign Root CA - C1 (O=eMudhra Inc)
# SHA-256 12:56:09:AA:30:1D:A0:A2:49:B9:7A:82:39:CB:6A:34:21:6F:44:DC:AC:9F:39:54:B1:42:92:F2:E8:C8:60:8F
[settings.pki.emsign-root-c1]
trusted = false
data = "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"
EOF

[piyush-jena]

As mentioned above, the announcement has the mitigation and please follow #4982 to track the fix.

[Azahorscak]

Thank you!