Handle missing SHELL envvar

Gallopsled · Jan 2, 2024 · a76fabe · a76fabe
1 parent 5a388b2
commit a76fabe
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/pwnlib/libcdb.py b/pwnlib/libcdb.py
@@ -110,7 +110,7 @@ def provider_libc_rip(hex_encoded_id, hash_type):
 def provider_local_system(hex_encoded_id, hash_type):
     if hash_type == 'id':
         return None
-    shell_path = os.environ['SHELL'] or '/bin/sh'
+    shell_path = os.environ.get('SHELL', None) or '/bin/sh'
     if not os.path.exists(shell_path):
         log.debug('Shell path %r does not exist. Skipping local system libc matching.', shell_path)
         return None