From d712861634df8687520a604d7b50dc0e2b9e12f4 Mon Sep 17 00:00:00 2001
From: Hua Liu <58683130+liuh-80@users.noreply.github.com>
Date: Fri, 26 Jan 2024 16:00:00 +0800
Subject: [PATCH] [TACACS] Fix when set TACACS to "tacacs+, local" user can run
 blocked command with local permission issue. (#17749)

Fix when set TACACS to "tacacs+, local" user can run blocked command with local permission issue.

#### Why I did it
When set TACACS to "tacacs+, local", user still can run a blocked command with local permission.

##### Work item tracking
- Microsoft ADO: 26399545

#### How I did it
Fix code to reject command when authorized failed from TACACS server side.

#### How to verify it
Pass all UT.

### Description for the changelog
Fix when set TACACS to "tacacs+, local" user can run blocked command with local permission issue.
---
 src/tacacs/bash_tacplus/bash_tacplus.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/tacacs/bash_tacplus/bash_tacplus.c b/src/tacacs/bash_tacplus/bash_tacplus.c
index 6e72e8f0a0..169d6bec3a 100644
--- a/src/tacacs/bash_tacplus/bash_tacplus.c
+++ b/src/tacacs/bash_tacplus/bash_tacplus.c
@@ -471,8 +471,9 @@ int on_shell_execve (char *user, int shell_level, char *cmd, char **argv)
                 fprintf(stdout, "%s not authorized by TACACS+ with given arguments, not executing\n", cmd);
             break;
             default:
+                // when command reject by server, authorization will failed immediately
                 fprintf(stdout, "%s authorize failed by TACACS+ with given arguments, not executing\n", cmd);
-            break;
+                return ret;
         }
 
         if ((tacacs_ctrl & AUTHORIZATION_FLAG_LOCAL) == 0) {