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Juniper Secure Access SSL VPN Privilege Escalation

Juniper Secure Access SSL VPN Privilege Escalation
Posted Dec 22, 2018
Authored by Rafael Pedrero

Certain Secure Access SA Series SSL VPN products (originally developed by Juniper Networks but now sold and supported by Pulse Secure, LLC) allow privilege escalation, as demonstrated by Secure Access SSL VPN SA-4000 5.1R5 (build 9627) 4.2 Release (build 7631). This occurs because appropriate controls are not performed.

tags | exploit
systems | juniper
advisories | CVE-2018-20193
MD5 | 4f0f2b6cb76404194c75a1d6b9ff1f4d

Juniper Secure Access SSL VPN Privilege Escalation

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In 2006...

<!--
# Exploit Title: Privilege escalation in Juniper Secure Access SSL VPN -
SA-4000, 5.1R5 (build 9627) 4.2 Release (build 7631)
# Date: 18-12-2018
# Exploit Author: Rafael Pedrero
# Vendor Homepage: http://www.juniper.net/
# Software Link: http://www.juniper.net/
# Version: Juniper Secure Access SSL VPN SA-4000 5.1R5 (build 9627) 4.2
Release (build 7631)
# Tested on: all
# CVE : CVE-2018-20193
# Category: webapps

1. Description

Certain Secure Access SA Series SSL VPN products (originally developed by
Juniper Networks but now sold and supported by Pulse Secure, LLC) allow
privilege escalation, as demonstrated by Secure Access SSL VPN SA-4000
5.1R5 (build 9627) 4.2 Release (build 7631). This occurs because
appropriate controls are not performed.


2. Proof of Concept

It is possible to change the administrator user password from readonly user
because the appropriate controls are not performed. Save the page
/dana-admin/user/update.cgi in local, change the "user" value and save
changes.


3. Solution:

This version is deprecated. Update to last version this product.
-->


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