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Feature/dirty cow #139
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e61f9c3
update grade to version 2.2.2
iRave aeab923
Add CMake to project (temporarily, to make code debuggable), Update t…
iRave 2ba2ab8
Add dirtyCow vulnerability test
iRave 5df2c4b
Change Loop run-count, to speed up speed test. new value should still…
iRave bb94ead
Remove unnecessary comments from dirtycow.c
iRave 4b4598c
Add logging to DirtyCOW C code
iRave f2e4141
Fix DirtyCOW memory leaks (files not closed)
iRave 50f7adc
Fix dirtyCow filename mismatch (dirtyCow.c=>dirtycow.c)
S-trace 70cb5ce
Merge pull request #1 from S-trace/feature/DirtyCow
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| # Sets the minimum version of CMake required to build the native | ||
| # library. You should either keep the default value or only pass a | ||
| # value of 3.4.0 or lower. | ||
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| cmake_minimum_required(VERSION 3.4.1) | ||
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| # set binary output folder to libs folder | ||
| set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/src/main/libs/${ANDROID_ABI}") | ||
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| add_library( dirtyCow | ||
| SHARED | ||
| src/main/jni/dirtycow.c ) | ||
| target_link_libraries( dirtyCow | ||
| log) |
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102 changes: 102 additions & 0 deletions
102
app/src/main/java/fuzion24/device/vulnerability/vulnerabilities/kernel/CVE_2016_5195.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| package fuzion24.device.vulnerability.vulnerabilities.kernel; | ||
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| import android.content.Context; | ||
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| import java.io.*; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
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| import fuzion24.device.vulnerability.util.CPUArch; | ||
| import fuzion24.device.vulnerability.vulnerabilities.VulnerabilityTest; | ||
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| /** | ||
| * Created by Till Busse on 21/11/16. | ||
| * Java implementation to test dirtyCow vulnerability. | ||
| */ | ||
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| public class CVE_2016_5195 implements VulnerabilityTest { | ||
| static { | ||
| System.loadLibrary("dirtyCow"); | ||
| } | ||
| private final String file1Name = "file1"; | ||
| private final String file2Name = "file2"; | ||
| private final String file1Content = "This is File one."; | ||
| private final String file2Content = "Mo0h"; | ||
| @Override | ||
| public String getCVEorID() { | ||
| return "CVE-2016-5195"; | ||
| } | ||
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| private native int runDirtyCow(Object [] paths); | ||
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| @Override | ||
| public boolean isVulnerable(Context context) throws Exception { | ||
| try{ | ||
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| List<Object> paths = createFiles(context); | ||
| boolean isWritten = checkFileContent(context, file1Name, file1Content); | ||
| if (!isWritten) | ||
| throw new Exception("Error running test. File could not be created with specific content"); | ||
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| int checkVal = runDirtyCow(paths.toArray()); | ||
| if (checkVal == 0){ | ||
| isWritten = checkFileContent(context, file1Name, file2Content); | ||
| return isWritten; | ||
| }else { | ||
| throw new Exception("Error running test. Errno: " + checkVal); | ||
| } | ||
| }finally { | ||
| // delete files when done | ||
| File file; | ||
| file = new File(context.getFilesDir(), file1Name); | ||
| file.delete(); | ||
| file = new File(context.getFilesDir(), file1Name); | ||
| file.delete(); | ||
| } | ||
| } | ||
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| @Override | ||
| public List<CPUArch> getSupportedArchitectures() { | ||
| ArrayList<CPUArch> archs = new ArrayList<>(); | ||
| archs.add(CPUArch.ALL); | ||
| return archs; | ||
| } | ||
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| private List<Object> createFiles(Context context){ | ||
| List<Object> paths = new ArrayList<>(); | ||
| paths.add(0, context.getFilesDir().getAbsolutePath() + "/" + file1Name); | ||
| paths.add(1, context.getFilesDir().getAbsolutePath() + "/" + file2Name); | ||
| FileOutputStream outputStream; | ||
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| try { | ||
| outputStream = context.openFileOutput(file1Name, Context.MODE_PRIVATE); | ||
| outputStream.write(file1Content.getBytes()); | ||
| outputStream = context.openFileOutput(file2Name, Context.MODE_PRIVATE); | ||
| outputStream.write(file2Content.getBytes()); | ||
| outputStream.close(); | ||
| } catch (Exception e) { | ||
| e.printStackTrace(); | ||
| } | ||
| return paths; | ||
| } | ||
| private boolean checkFileContent(Context context, String filename, String content){ | ||
| File fileCheck = context.getFilesDir(); | ||
| //Get the text file | ||
| File file = new File(fileCheck,filename); | ||
| //Read text from file | ||
| StringBuilder text = new StringBuilder(); | ||
| try { | ||
| BufferedReader br = new BufferedReader(new FileReader(file)); | ||
| String line; | ||
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| while ((line = br.readLine()) != null) { | ||
| text.append(line); | ||
| //text.append('\n'); | ||
| } | ||
| br.close(); | ||
| }catch (IOException e) { | ||
| e.printStackTrace(); | ||
| } | ||
| return content.equals(text.substring(0, content.length())); | ||
| } | ||
| } | ||
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This should be
file2NameI think (yeah, I know that this repo is pretty dead, but still 😉 )There was a problem hiding this comment.
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thanks =D