Update version info

Author: wchen-r7

documentation/modules/exploit/linux/http/github_enterprise_secret.md

@@ -9,6 +9,10 @@ $18,000 total.
 
 ## Vulnerable Application
 
+The following versions are affected:
+
+* 2.8.0 - 2.8.6.
+
 For testing purposes, you can download a Github Enterprise image from the following location:
 
 [https://enterprise.github.com/releases/](https://enterprise.github.com/releases/)

modules/exploits/linux/http/github_enterprise_secret.rb

@@ -16,11 +16,11 @@ def initialize(info={})
     super(update_info(info,
       'Name'           => "Github Enterprise Default Session Secret And Deserialization Vulnerability",
       'Description'    => %q{
-        This module exploits two security issues in Github Enterprise, version 2.8. The first is
-        that the session management uses a hard-coded secret value, which can be abused to sign
-        a serialized malicious Ruby object. The second problem is due to the use of unsafe
-        deserialization, which allows the malicious Ruby object to be loaded, and results
-        in arbitrary remote code execution.
+        This module exploits two security issues in Github Enterprise, version 2.8.0 - 2.8.6.
+        The first is that the session management uses a hard-coded secret value, which can be
+        abused to sign a serialized malicious Ruby object. The second problem is due to the
+        use of unsafe deserialization, which allows the malicious Ruby object to be loaded,
+        and results in arbitrary remote code execution.
 
         This exploit was tested against version 2.8.0.
       },
@@ -33,7 +33,8 @@ def initialize(info={})
       'References'     =>
         [
           [ 'EDB', '41616' ],
-          [ 'URL', 'http://exablue.de/blog/2017-03-15-github-enterprise-remote-code-execution.html' ]
+          [ 'URL', 'http://exablue.de/blog/2017-03-15-github-enterprise-remote-code-execution.html' ],
+          [ 'URL', 'https://enterprise.github.com/releases/2.8.7/notes' ] # Patched in this version
         ],
       'Platform'       => 'linux',
       'Targets'        =>