Java: Update MaD declarations after triage

Co-authored-by: Stephan Brandauer <kaeluka@github.com>

Author: tausbn

java/ql/lib/change-notes/2023-06-01-new-models.md

@@ -0,0 +1,7 @@
+---
+category: minorAnalysis
+---
+* Added models for the following packages:
+
+  * java.lang
+  * java.nio.file

java/ql/lib/ext/java.lang.model.yml

@@ -8,6 +8,8 @@ extensions:
       - ["java.lang", "ClassLoader", True, "getSystemResource", "(String)", "", "Argument[0]", "path-injection", "ai-manual"]
       - ["java.lang", "ClassLoader", True, "getSystemResourceAsStream", "(String)", "", "Argument[0]", "path-injection", "ai-manual"]
       - ["java.lang", "Module", True, "getResourceAsStream", "(String)", "", "Argument[0]", "path-injection", "ai-manual"]
+      - ["java.lang", "Runtime", False, "load", "(String)", "", "Argument[0]", "command-injection", "ai-manual"]
+      - ["java.lang", "Runtime", False, "loadLibrary", "(String)", "", "Argument[0]", "command-injection", "ai-manual"]
       # These are modeled in plain CodeQL. TODO: migrate them.
       # - ["java.lang", "ProcessBuilder", False, "command", "(String[])", "", "Argument[0]", "command-injection", "ai-manual"]
       # - ["java.lang", "ProcessBuilder", False, "directory", "(File)", "", "Argument[0]", "command-injection", "ai-manual"]

java/ql/lib/ext/java.nio.file.model.yml

@@ -18,6 +18,7 @@ extensions:
       - ["java.nio.file", "Files", False, "delete", "(Path)", "", "Argument[0]", "path-injection", "ai-manual"]
       - ["java.nio.file", "Files", False, "deleteIfExists", "(Path)", "", "Argument[0]", "path-injection", "ai-manual"]
       - ["java.nio.file", "Files", False, "deleteIfExists", "(Path)", "", "Argument[0]", "path-injection", "ai-manual"]
+      - ["java.nio.file", "Files", False, "getFileStore", "(Path)", "", "Argument[0]", "path-injection", "ai-manual"] # the FileStore class is unlikely to be used for later sanitization
       - ["java.nio.file", "Files", False, "lines", "(Path,Charset)", "", "Argument[0]", "path-injection", "ai-manual"]
       - ["java.nio.file", "Files", False, "lines", "(Path)", "", "Argument[0]", "path-injection", "ai-manual"]
       - ["java.nio.file", "Files", False, "move", "", "", "Argument[1]", "path-injection", "manual"]
@@ -26,6 +27,7 @@ extensions:
       - ["java.nio.file", "Files", False, "newBufferedWriter", "", "", "Argument[0]", "path-injection", "manual"]
       - ["java.nio.file", "Files", False, "newInputStream", "(Path,OpenOption[])", "", "Argument[0]", "path-injection", "ai-manual"]
       - ["java.nio.file", "Files", False, "newOutputStream", "", "", "Argument[0]", "path-injection", "manual"]
+      - ["java.nio.file", "Files", False, "probeContentType", "(Path)", "", "Argument[0]", "path-injection", "ai-manual"] # accesses the file based on user input, but only reads its content type from it
       - ["java.nio.file", "Files", False, "readAllBytes", "(Path)", "", "Argument[0]", "path-injection", "ai-manual"]
       - ["java.nio.file", "Files", False, "readAllLines", "(Path,Charset)", "", "Argument[0]", "path-injection", "ai-manual"]
       - ["java.nio.file", "Files", False, "readAllLines", "(Path)", "", "Argument[0]", "path-injection", "ai-manual"]
@@ -46,6 +48,10 @@ extensions:
       pack: codeql/java-all
       extensible: summaryModel
     data:
+      - ["java.nio.file", "Files", False, "find", "(Path,int,BiPredicate,FileVisitOption[])", "", "Argument[0]", "ReturnValue.Element", "taint", "ai-manual"]
+      - ["java.nio.file", "Files", False, "find", "(Path,int,BiPredicate,FileVisitOption[])", "", "Argument[2]", "ReturnValue.Element", "taint", "ai-manual"]
+      - ["java.nio.file", "Files", False, "list", "(Path)", "", "Argument[0]", "ReturnValue.Element", "taint", "ai-manual"]
+      - ["java.nio.file", "Files", False, "readSymbolicLink", "(Path)", "", "Argument[0]", "ReturnValue", "taint", "ai-manual"] # this can be used to enumerate a file system
       - ["java.nio.file", "Files", True, "newBufferedReader", "(Path,Charset)", "", "Argument[0]", "ReturnValue", "taint", "ai-manual"]
       - ["java.nio.file", "Files", True, "newBufferedReader", "(Path)", "", "Argument[0]", "ReturnValue", "taint", "ai-manual"]
       - ["java.nio.file", "Files", True, "newByteChannel", "(Path,OpenOption[])", "", "Argument[0]", "ReturnValue", "taint", "ai-manual"]