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cert: disable security flags when WinHttpSetOption is WINHTTP_OPTION_CLIENT_CERT_CONTEXT

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This commit is contained in:
Kevin Trocolli
2024-05-18 14:31:45 -04:00
parent a65b996080
commit 42138b7a7d
1 changed files with 19 additions and 5 deletions
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platform/cert.c
+19 -5
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@@ -244,16 +244,30 @@ WINHTTPAPI BOOL hook_WinHttpSetOption(
if (dwOption == WINHTTP_OPTION_CLIENT_CERT_CONTEXT) {
// This is U G L Y and will fail on servers that actually check the client cert.
dprintf("Cert: Block WINHTTP_OPTION_CLIENT_CERT_CONTEXT\n");
return true;
}
else if (dwOption == WINHTTP_OPTION_SECURITY_FLAGS) {
dprintf("Cert: Add all security ignore flags\n");
int value = SECURITY_FLAG_IGNORE_UNKNOWN_CA | SECURITY_FLAG_IGNORE_CERT_DATE_INVALID | SECURITY_FLAG_IGNORE_CERT_CN_INVALID; // the kitchen sink
WINHTTP_STATUS_CALLBACK cb_check = WinHttpSetStatusCallback(hInternet, (WINHTTP_STATUS_CALLBACK)ca_error_cb, WINHTTP_CALLBACK_FLAG_SECURE_FAILURE, 0);
if (cb_check == WINHTTP_INVALID_STATUS_CALLBACK) {
dprintf("Cert: Failed to set SSL error callback: %08lX\n", GetLastError());
SetLastError(0);
}
// Sneak in security disable while we're here
int value = SECURITY_FLAG_IGNORE_UNKNOWN_CA | SECURITY_FLAG_IGNORE_CERT_DATE_INVALID | SECURITY_FLAG_IGNORE_CERT_CN_INVALID; // the kitchen sink
if (!next_WinHttpSetOption(hInternet, WINHTTP_OPTION_SECURITY_FLAGS, &value, 4)) {
dprintf("Cert: Failed to set ignore security flags: %08lX\n", GetLastError());
SetLastError(0);
}
return true;
}
else if (dwOption == WINHTTP_OPTION_SECURITY_FLAGS) {
dprintf("Cert: Add all security ignore flags\n");
WINHTTP_STATUS_CALLBACK cb_check = WinHttpSetStatusCallback(hInternet, (WINHTTP_STATUS_CALLBACK)ca_error_cb, WINHTTP_CALLBACK_FLAG_SECURE_FAILURE, 0);
if (cb_check == WINHTTP_INVALID_STATUS_CALLBACK) {
dprintf("Cert: Failed to set SSL error callback: %08lX\n", GetLastError());
SetLastError(0);
}
int value = SECURITY_FLAG_IGNORE_UNKNOWN_CA | SECURITY_FLAG_IGNORE_CERT_DATE_INVALID | SECURITY_FLAG_IGNORE_CERT_CN_INVALID; // the kitchen sink
return next_WinHttpSetOption(hInternet, dwOption, &value, dwBufferLength);
} else {
dprintf("Cert: hook_WinHttpSetOption %p %08X\n", hInternet, (int)dwOption);