Hi Satosa users,
I’m having trouble with a SAML request being incorrectly inflated/decoded and then failing with the error “invalid signature” (which I think is misleading). I couldn’t see a known issue about this on GitHub. I’m running Satosa 8.2. Has anyone seen this and has a suggestion?
Both the good and bad AuthN Requests in the logs below validate fine at https://www.samltool.com/decode.php
Example, “bad” encoding from https://sptest.iamshowcase.com/instructions:
[1687184930.586361] [2023-06-19 14:28:50] [DEBUG]: read request data: {'SAMLRequest': 'fVFbb4IwFP4rTd/lUrVCIyRsZhmJZkbYHvZWSh1NoGU9ZdvPH6Jm7sXHk+98t3PWwLu2Z9ngGn2Qn4MEh366VgObgAQPVjPDQQHTvJPAnGBFttsy4gWst8YZYVp8Q7nP4ADSOmU0Rk/GCjn5JvjIW5AYoXyTYB7VhNdRTOpFSGkYrZYhJTSIBa9EFR/JPKLVKpSUYpQDDDLX4Lh2CSYBmc8COgvjMlwwErFl8I7RZmykND95Jrhxrgfm+6ruPSGt9kTjn0IT6H0A4/cGHEbZNeSj0TB00hbSfikhXw/bPwno3ajsKd5BY74FB+kJ0/lcwNhjfznMg9K10h/3b1Kdl4A9l+V+tn8pylEBvUkLU+ZxBafrU0o29bUozbNdcTFd+zdIep7+vzP9BQ=='}
...
[1687184930.589399] [2023-06-19 14:28:50] [DEBUG]: xmlstr: b'}Q[o\x820\x14\xfe+M\xdf\xe5R\xb5B#$lf\x19\x89fF\xd8\x1e\xf6VJ\x1dM\xa0e=e\xdb\xcf\x1f\xa2f\xee\xc5\xc7\x93\xef|\xb7s\xd6\xc0\xbb\xb6g\xd9\xe0\x1a}\x90\x9f\x83\x04\x87~\xbaV\x03\x9b\x80\x04\x0fV3\xc3A\x01\xd3\xbc\x93\xc0\x9c`E\xb6\xdb2\xe2\x05\xac\xb7\xc6\x19aZ|C\xb9\xcf\xe0\x00\xd2:e4FO\xc6\n9\xf9&\xf8\xc8[\x90\x18\xa1|\x93`\x1e\xd5\x84\xd7QL\xeaEHi\x18\xad\x96!%4\x88\x05\xafD\x15\x1f\xc9<\xa2\xd5*\x94\x94b\x94\x03\x0c2\xd7\xe0\xb8v\t&\x01\x99\xcf\x02:\x0b\xe32\\0\x12\xb1e\xf0\x8e\xd1fl\xa44?y&\xb8q\xae\x07\xe6\xfb\xaa\xee=!\xad\xf6D\xe3\x9fB\x13\xe8}\x00\xe3\xf7\x06\x1cF\xd95\xe4\xa3\xd10t\xd2\x16\xd2~)!_\x0f\xdb?\t\xe8\xdd\xa8\xec)\xdeAc\xbe\x05\x07\xe9\t\xd3\xf9\\\xc0\xd8c\x7f9\xcc\x83\xd2\xb5\xd2\x1f\xf7oR\x9d\x97\x80=\x97\xe5~\xb6\x7f)\xcaQ\x01\xbdI\x0bS\xe6q\x05\xa7\xebSJ6\xf5\xb5(\xcd\xb3]q1]\xfb7Hz\x9e\xfe\xbf3\xfd\x05', relay_state: None, sigalg: None, signature: None
Example “good” encoding from https://samltest.id/saml-test/:
[1687184991.342228] [2023-06-19 14:29:51] [DEBUG]: read request data: {'SAMLRequest': 'fZHdT4MwFMX/FdL3UejGJs0gwe3BJVPJQB98MaUUaQIt9hY//nv50DgTs7cmPed37j13C6xtOpr0tlYn8doLsM5H2yig00eEeqOoZiCBKtYKoJbTLLk9UuJ6tDPaaq4b5CQAwlip1U4r6FthMmHeJBcPp2OEams7oBiPRDsEuLLEWS2LQjfC1i6AxiOS4PQ+y5GzHyRSsZH265Vl53JhlMvriUOgw6PRiFIawS1yDvsIPa+qDd+EVyUjgR/6q6AI+bJaE1IUPqlKLxhkAL04KLBM2QgRjywX3nrhh7m/oiSkgf+EnPR7r2upSqleLpdQzCKgN3meLuYVHoWBafxBgOLtODCdgs1ZuZex7KdRFP/X3/jG0G3xGXsO6ujdADvsU91I/ukkTaPfd0YwKyLkIxzPlr8nj78A', 'RelayState': 'ss:mem:a06bd083cf6e2d94f28cccd470c97390dc2ccf20657a3be36e36bce4521e8cdd’}
...
[1687184991.345231] [2023-06-19 14:29:51] [DEBUG]: xmlstr: b'<samlp:AuthnRequest xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" AssertionConsumerServiceURL="https://samltest.id/Shibboleth.sso/SAML2/POST" Destination="https://idp.cern.ch/saml2sp/sso/redirect" ID="_4f7c798da2519145b9c3f622bb12fd05" IssueInstant="2023-06-19T14:29:51Z" ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Version="2.0"><saml:Issuer xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion">https://samltest.id/saml/sp</saml:Issuer><samlp:NameIDPolicy AllowCreate="1"/></samlp:AuthnRequest>', relay_state: None, sigalg: None, signature: None
Thanks for any help!
Hannah
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Thanks for sharing this discussion. It’s always interesting to see how different online communities exchange tools and resources that make information easier to understand and visualize.
Lately I’ve noticed that interactive tools are becoming very popular because they allow users to explore concepts instantly instead of reading long explanations. For example, tools that generate charts or visual diagrams based on user input tend to attract a lot of engagement.
I’ve been experimenting with a small project that creates a visual Destiny Matrix chart from a birth date, mainly for people curious about numerology and self-reflection. If anyone here is interested in seeing how such visual tools work, you can check it out here: https://destinymatrixfree.com/
It would be great to hear thoughts from others about how interactive tools or visual generators could be integrated into educational or community platforms.
