76 lines
2.0 KiB
Diff
76 lines
2.0 KiB
Diff
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From 5e94fe726e9af81374c697ce603b3728ccaaebf3 Mon Sep 17 00:00:00 2001
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From: Jeremy Allison <jra@samba.org>
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Date: Fri, 12 Jul 2019 12:10:35 -0700
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Subject: [PATCH 1/6] CVE-2019-10197: smbd: separate out impersonation debug
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info into a new function.
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Will be called on elsewhere on successful impersonation.
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BUG: https://bugzilla.samba.org/show_bug.cgi?id=14035
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Signed-off-by: Jeremy Allison <jra@samba.org>
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Reviewed-by: Ralph Boehme <slow@samba.org>
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Reviewed-by: Stefan Metzmacher <metze@samba.org>
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---
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source3/smbd/uid.c | 37 +++++++++++++++++++++++--------------
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1 file changed, 23 insertions(+), 14 deletions(-)
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diff --git a/source3/smbd/uid.c b/source3/smbd/uid.c
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index a4bcb747d37e..ce8e8d92131c 100644
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--- a/source3/smbd/uid.c
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+++ b/source3/smbd/uid.c
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@@ -279,6 +279,28 @@ static bool check_user_ok(connection_struct *conn,
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return(True);
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}
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+static void print_impersonation_info(connection_struct *conn)
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+{
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+ struct smb_filename *cwdfname = NULL;
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+
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+ if (!CHECK_DEBUGLVL(DBGLVL_INFO)) {
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+ return;
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+ }
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+
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+ cwdfname = vfs_GetWd(talloc_tos(), conn);
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+ if (cwdfname == NULL) {
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+ return;
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+ }
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+
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+ DBG_INFO("Impersonated user: uid=(%d,%d), gid=(%d,%d), cwd=[%s]\n",
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+ (int)getuid(),
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+ (int)geteuid(),
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+ (int)getgid(),
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+ (int)getegid(),
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+ cwdfname->base_name);
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+ TALLOC_FREE(cwdfname);
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+}
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+
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/****************************************************************************
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Become the user of a connection number without changing the security context
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stack, but modify the current_user entries.
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@@ -415,20 +437,7 @@ static bool change_to_user_internal(connection_struct *conn,
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current_user.done_chdir = true;
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}
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- if (CHECK_DEBUGLVL(DBGLVL_INFO)) {
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- struct smb_filename *cwdfname = vfs_GetWd(talloc_tos(), conn);
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- if (cwdfname == NULL) {
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- return false;
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- }
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- DBG_INFO("Impersonated user: uid=(%d,%d), gid=(%d,%d), cwd=[%s]\n",
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- (int)getuid(),
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- (int)geteuid(),
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- (int)getgid(),
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- (int)getegid(),
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- cwdfname->base_name);
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- TALLOC_FREE(cwdfname);
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- }
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-
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+ print_impersonation_info(conn);
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return true;
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}
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--
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2.17.1
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