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Patch for Debian bug #537848
pam_securetty should not return PAM_USER_UNKNOWN when the tty is secure.
regardless of what was entered as a username.
Authors: Nicolas François <nicolas.francois@centraliens.net>
Upstream status: committed to CVS
Index: sid/modules/pam_securetty/pam_securetty.c
===================================================================
--- sid.orig/modules/pam_securetty/pam_securetty.c 2009-07-23 17:39:36.904158303 +0200
+++ sid/modules/pam_securetty/pam_securetty.c 2009-07-23 17:48:55.596157670 +0200
@@ -82,13 +82,11 @@
}
user_pwd = pam_modutil_getpwnam(pamh, username);
- if (user_pwd == NULL) {
- return PAM_USER_UNKNOWN;
- } else if (user_pwd->pw_uid != 0) { /* If the user is not root,
- securetty's does not apply
- to them */
+ if (user_pwd != NULL && user_pwd->pw_uid != 0) {
+ /* If the user is not root, securetty's does not apply to them */
return PAM_SUCCESS;
}
+ /* The user is now either root or an invalid / mistyped username */
retval = pam_get_item(pamh, PAM_TTY, &void_uttyname);
uttyname = void_uttyname;
@@ -102,6 +100,9 @@
pam_syslog(pamh, LOG_DEBUG, "access allowed for '%s' on '%s'",
username, uttyname);
} else if (retval != PAM_SUCCESS) {
+ if (user_pwd == NULL) {
+ retval = PAM_USER_UNKNOWN;
+ }
pam_syslog(pamh, LOG_WARNING, "access denied: tty '%s' is not secure !",
uttyname);
}
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