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disabled broken fdopen and routed usage in code to Win CRTs _fdopen, also logging in Network mode, to get elevated tokens for admin

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This commit is contained in:
Manoj Ampalam 2016-03-17 19:36:09 -07:00
parent 3760840856
commit dec395bbfe
4 changed files with 20 additions and 33 deletions
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30
auth-passwd.c
View File

@ -335,39 +335,11 @@ int sys_auth_passwd(Authctxt *authctxt, const char *password)
return 0;
}
/*
* First, try logon in INTERACTIVE mode.
*/
worked = LogonUserW(user_UTF16, domain_UTF16, password_UTF16,
LOGON32_LOGON_INTERACTIVE,
LOGON32_LOGON_NETWORK,
LOGON32_PROVIDER_DEFAULT, &hToken);
/*
* If no success, try NETWORK mode.
*/
if (!worked)
{
HANDLE weakToken = INVALID_HANDLE_VALUE;
debug3("Netork login attemp [%s][%ls]...",
username, domain_UTF16);
worked = LogonUserW(user_UTF16, domain_UTF16, password_UTF16,
LOGON32_LOGON_NETWORK,
LOGON32_PROVIDER_DEFAULT, &weakToken);
if (worked)
{
debug("Duplicating token...");
debug3(DuplicateTokenEx(weakToken, MAXIMUM_ALLOWED,
NULL, SecurityImpersonation,
TokenPrimary, &hToken) == 0);
}
}
free(user_UTF16);
free(password_UTF16);

15
auth.c
View File

@ -647,8 +647,8 @@ auth_openfile(const char *file, struct passwd *pw, int strict_modes,
int fd;
FILE *f;
#if(0)def WIN32_FIXME
if ((fd = WSHELPwopen(file, O_RDONLY|O_NONBLOCK)) == -1) {
#ifdef WIN32_FIXME
if ((fd = _wopen(file, O_RDONLY|O_NONBLOCK)) == -1) {
#else
if ((fd = open(file, O_RDONLY|O_NONBLOCK)) == -1) {
#endif
@ -658,6 +658,13 @@ auth_openfile(const char *file, struct passwd *pw, int strict_modes,
return NULL;
}
#ifdef WIN32_FIXME
if ((f = _fdopen(fd, "r")) == NULL) {
_close(fd);
return NULL;
}
#else
if (fstat(fd, &st) < 0) {
close(fd);
return NULL;
@ -668,13 +675,13 @@ auth_openfile(const char *file, struct passwd *pw, int strict_modes,
close(fd);
return NULL;
}
#ifndef WIN32_FIXME
unset_nonblock(fd);
#endif
if ((f = fdopen(fd, "r")) == NULL) {
close(fd);
return NULL;
}
#endif
if (strict_modes &&
secure_filename(f, file, pw, line, sizeof(line)) != 0) {
fclose(f);

4
contrib/win32/win32compat/fileio.c
View File

@ -556,6 +556,10 @@ fileio_fdopen(struct w32_io* pio, const char *mode) {
int fd_flags = 0;
debug2("fdopen - io:%p", pio);
/* logic below doesn't work with overlapped file HANDLES */
errno = ENOTSUP;
return NULL;
if (mode[1] == '\0') {
switch (*mode) {
case 'r':

4
ssh-keygen.c
View File

@ -58,6 +58,10 @@
#include "krl.h"
#include "digest.h"
#ifdef WIN32_FIXME
#define open(a,b,...) _open((a), (b), __VA_ARGS__)
#define fdopen(a,b) _fdopen((a), (b))
#endif
#ifdef WITH_OPENSSL
# define DEFAULT_KEY_TYPE_NAME "rsa"