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Advisory details: ubuntu_osv / UBUNTU-CVE-2012-6636
Advisory ID ubuntu_osv/UBUNTU-CVE-2012-6636
Aliases CVE-2012-6636
Summary The Android API before 17 does not properly restrict the WebView.addJavascriptInterface method, which allows remote attackers to execute arbitrary methods of Java objects by using the Java Reflection API within crafted JavaScript code that is loaded into the WebView component in an application targeted to API level 16 or earlier, a related issue to CVE-2013-4710.
Status Published
Exploitability 2.0
Weighted Severity 6.2
Risk 10.0
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (0)
There are no known CWE.
System Score Found at
ubuntu-priority medium https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2012/UBUNTU-CVE-2012-6636.json
Reference id Reference type URL
http://packetstormsecurity.com/files/124954/apachecordovaphonegap-bypass.txt
https://ubuntu.com/security/CVE-2012-6636
https://www.cve.org/CVERecord?id=CVE-2012-6636
http://www.openwall.com/lists/oss-security/2014/02/03/7
http://www.openwall.com/lists/oss-security/2014/02/07
Data source Metasploit
Description This module exploits a privilege escalation issue in Android < 4.2's WebView component that arises when untrusted JavaScript code is executed by a WebView that has one or more Interfaces added to it. The untrusted JavaScript code can call into the Java Reflection APIs exposed by the Interface and execute arbitrary commands. Some distributions of the Android Browser app have an addJavascriptInterface call tacked on, and thus are vulnerable to RCE. The Browser app in the Google APIs 4.1.2 release of Android is known to be vulnerable. A secondary attack vector involves the WebViews embedded inside a large number of Android applications. Ad integrations are perhaps the worst offender here. If you can MITM the WebView's HTTP connection, or if you can get a persistent XSS into the page displayed in the WebView, then you can inject the html/js served by this module and get a shell. Note: Adding a .js to the URL will return plain javascript (no HTML markup).
Note 
SideEffects:
  - artifacts-on-disk
Reliability:
  - unreliable-session
Stability:
  - crash-safe
Ransomware campaign use Unknown
Source publication date Dec. 21, 2012
Platform Android,Linux
Source URL https://github.com/rapid7/metasploit-framework/tree/master/modules/exploits/android/browser/webview_addjavascriptinterface.rb
Data source Exploit-DB
Date added March 23, 2017
Description Google Android 4.2 Browser and WebView - 'addJavascriptInterface' Code Execution (Metasploit)
Ransomware campaign use Known
Source publication date Dec. 21, 2012
Exploit type local
Platform android
Source update date March 23, 2017
Source URL https://github.com/rapid7/metasploit-framework/blob/b08d1ad8d8d6c0f5cb63cc44e3ff75efb9edb7b3/modules/exploits/android/browser/webview_addjavascriptinterface.rb

No EPSS data available for this advisory.

Patch URL
There are no known patches.
There are no known vectors.

There are no SSVC decisions available.