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Use the SUDO_CONV_PREFER_TTY flag during authentication.

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This prevents the password and PAM prompts from being redirected.
Bug #895
This commit is contained in:
Todd C. Miller
2019-08-26 19:30:11 -06:00
parent 5a22865131
commit 972670bfca
9 changed files with 51 additions and 29 deletions
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6
plugins/sudoers/auth/pam.c
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@@ -696,11 +696,13 @@ converse(int num_msg, PAM_CONST struct pam_message **msg,
break;
case PAM_TEXT_INFO:
if (pm->msg != NULL && !is_filtered(pm->msg))
sudo_printf(SUDO_CONV_INFO_MSG, "%s\n", pm->msg);
sudo_printf(SUDO_CONV_INFO_MSG|SUDO_CONV_PREFER_TTY,
"%s\n", pm->msg);
break;
case PAM_ERROR_MSG:
if (pm->msg != NULL)
sudo_printf(SUDO_CONV_ERROR_MSG, "%s\n", pm->msg);
sudo_printf(SUDO_CONV_ERROR_MSG|SUDO_CONV_PREFER_TTY,
"%s\n", pm->msg);
break;
default:
sudo_debug_printf(SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO,