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misc: check for signature parameter before sigalg (#89371)
gitea/lasso/pipeline/head This commit looks good Details

This commit is contained in:
Benjamin Dauvergne 2024-04-10 19:01:03 +02:00
parent 3e6f9076e1
commit fe27e52da0
2 changed files with 10 additions and 3 deletions
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6
lasso/xml/tools.c
View File

@ -1028,12 +1028,12 @@ lasso_saml2_query_verify_signature(const char *query, xmlSecKey *sender_public_k
goto_cleanup_with_rc(LASSO_PROFILE_ERROR_INVALID_QUERY);
}
if (! sig_alg) {
goto_cleanup_with_rc(LASSO_DS_ERROR_INVALID_SIGALG);
}
if (! b64_signature) {
goto_cleanup_with_rc(LASSO_DS_ERROR_SIGNATURE_NOT_FOUND);
}
if (! sig_alg) {
goto_cleanup_with_rc(LASSO_DS_ERROR_INVALID_SIGALG);
}
/* build the signed query */
if (relaystate) {
signed_query = g_strconcat(saml_request_response, "&", relaystate, "&", sig_alg, NULL);

7
tests/random_tests.c
View File

@ -292,6 +292,8 @@ START_TEST(test07_saml2_query_verify_signature)
* changed to ; */
const char query2[] = "Signature=Zfz3DE1VMV3thaV4FWpH0fkWsBMzAFJcfvVWAbo0a3cY48Et%2BXUcbr1nvOJUJmhGoie0pQ4%2BcD9ToQlSk7BbJSBCct%2FQQgn2QNkX%2F1lk4v8RU8p5ptJRJ2iPLb8nC6WZhs81HoihQePSuj7Qe5bRUsDKvnWMq6OkD%2Fe6YO77dMXregTcfmnkrXqRb2T6TFfqyOz9i0%2FjmISsmj%2F3kEEfUzVA4LEbeEgiJDj1hec4XW26gQTih53v0sYukq4Eyb4zS2jVd3apUUxUrjn1NUpr7Z7dZ7w5MQlgZ8aw1xFDE8BkxymvIjwf8ciyx6sfTKbCRsoS9E0pQB1vxvh6OMt1Ww%3D%3D;SAMLRequest=fVHJasMwEP0Vo3tqRXY2YRvcOIFAl9CUHnopwpkkAllyNeMuf1%2FZaSG95PrmLfNmMlSNaWXZ0ck%2BwXsHSNFXYyzKYZCzzlvpFGqUVjWAkmq5K%2B%2FvpLjhsvWOXO0Mu5BcVyhE8KSdZdGmytnbNEmTBV%2Bli9ulKMt5KlbVfDkbizWfcVEmUxa9gMfAz1mQBxFiBxuLpCwFiIvxiE9H48mz4FJMZJq8sqgKHbRVNKhORK2MY71vJzFqezSw00f7GPLXztcw9M7ZQRmE3n0bFtQf8IcUWV9JDqm%2B%2BPXCYNUAqb0ilcWXhOx8zIdQe1NtndH1dx%2FTKLp%2BlR7R%2B9FhoMq2b4wEllhUGuM%2Blx4UhZ3Id8Di4pz5%2F2fFDw%3D%3D;RelayState=fake;SigAlg=http%3A%2F%2Fwww.w3.org%2F2001%2F04%2Fxmldsig-more%23rsa-sha256";
const char query3[] = "SAMLRequest=fVHJasMwEP0Vo3tqRXY2YRvcOIFAl9CUHnopwpkkAllyNeMuf1%2FZaSG95PrmLfNmMlSNaWXZ0ck%2BwXsHSNFXYyzKYZCzzlvpFGqUVjWAkmq5K%2B%2FvpLjhsvWOXO0Mu5BcVyhE8KSdZdGmytnbNEmTBV%2Bli9ulKMt5KlbVfDkbizWfcVEmUxa9gMfAz1mQBxFiBxuLpCwFiIvxiE9H48mz4FJMZJq8sqgKHbRVNKhORK2MY71vJzFqezSw00f7GPLXztcw9M7ZQRmE3n0bFtQf8IcUWV9JDqm%2B%2BPXCYNUAqb0ilcWXhOx8zIdQe1NtndH1dx%2FTKLp%2BlR7R%2B9FhoMq2b4wEllhUGuM%2Blx4UhZ3Id8Di4pz5%2F2fFDw%3D%3D&RelayState=fake&SigAlg=http%3A%2F%2Fwww.w3.org%2F2001%2F04%2Fxmldsig-more%23rsa-sha256&Signature=rUJ%2B9wVSvdGSmZWGuGXgudAPV5KBxRfxRKraBWGIslBz2XreyNbQjSA47DhIfi%2Bxf0awIIGkKcieN3Qd5sqVn4wvFU8fsmfqrdtouYi46aKsj4W91N19TxJ%2BCgrP7ygVEGDaGdc%2BrCQC3%2FuoYTELXq0gYP7tHaXA%2FCaZHfx5Z159crpRxS6eabZ6BGf4ImxiKhE1FuYzKHeISEV1iSyvgx5%2FE8ydSO%2FSP6yA5Rck4JxVJWH6ImbswCVQ80qfqR4NoJ%2BxiZqilbDJnQaSKZggx%2FgjNVoX%2FMVW1FqEmgJNcZpSjNUQqy9u4veSllpxPc2aB%2FpiUjzpbq9XzyFDOQfkUQ%3D%3D";
/* Deleting SigAlg & Signature fields */
const char query4[] = "SAMLRequest=fVHJasMwEP0Vo3tqRXY2YRvcOIFAl9CUHnopwpkkAllyNeMuf1%2FZaSG95PrmLfNmMlSNaWXZ0ck%2BwXsHSNFXYyzKYZCzzlvpFGqUVjWAkmq5K%2B%2FvpLjhsvWOXO0Mu5BcVyhE8KSdZdGmytnbNEmTBV%2Bli9ulKMt5KlbVfDkbizWfcVEmUxa9gMfAz1mQBxFiBxuLpCwFiIvxiE9H48mz4FJMZJq8sqgKHbRVNKhORK2MY71vJzFqezSw00f7GPLXztcw9M7ZQRmE3n0bFtQf8IcUWV9JDqm%2B%2BPXCYNUAqb0ilcWXhOx8zIdQe1NtndH1dx%2FTKLp%2BlR7R%2B9FhoMq2b4wEllhUGuM%2Blx4UhZ3Id8Di4pz5%2F2fFDw%3D%3D&RelayState=fake";
/* sp5-saml2 key */
const char pkey[] = "-----BEGIN CERTIFICATE-----\n\
MIIDnjCCAoagAwIBAgIBATANBgkqhkiG9w0BAQUFADBUMQswCQYDVQQGEwJGUjEP\n\
@ -324,6 +326,11 @@ LlTxKnCrWAXftSm1rNtewTsF\n\
/* test reordering and semi-colon separator support */
ck_assert_msg(lasso_saml2_query_verify_signature(query2, key) == 0, "Disordered signature was not validated");
ck_assert_msg(lasso_saml2_query_verify_signature(query3, key) != 0, "Altered signature was validated");
/* test missing signature error code */
ck_assert_msg(lasso_saml2_query_verify_signature(query3, key) == LASSO_DS_ERROR_INVALID_SIGNATURE,
"Altered signature do not lead to invalid signature");
ck_assert_msg(lasso_saml2_query_verify_signature(query4, key) == LASSO_DS_ERROR_SIGNATURE_NOT_FOUND,
"Bad error code when missing signature");
xmlSecKeyDestroy(key);
}
END_TEST