CVE-2017-17947 Cross-site scripting in n/a

Medium 4.8 Published Updated

Cross-site scripting in Pulse Secure PCS/PPS admin portal allows attackers to execute scripts in administrator sessions, potentially leading to account takeover.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2017-17947?

CVE-2017-17947 is a medium-severity cross-site scripting vulnerability in Pulsesecure Pulse Connect Secure, published on 16 Jan 2018. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

A cross site scripting issue has been found in custompage.cgi in Pulse Secure Pulse Connect Secure (PCS) before 8.0R17.0, 8.1.x before 8.1R13, 8.2.x before 8.2R9, and 8.3.x before 8.3R3 and Pulse Policy Secure (PPS) before 5.2R10, 5.3.x before 5.3R9, and 5.4.x before 5.4R3 due to one of the URL parameters not being sanitized. Exploitation does require the user to be logged in as administrator; the issue is not applicable to the end user portal.

Weakness: CWE-79

Which versions are affected by CVE-2017-17947?

It affects 1 product.

Products include Pulsesecure Pulse Connect Secure.

How do I fix CVE-2017-17947?

No fix has been published for CVE-2017-17947 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2017-17947 being exploited?

There is no known exploitation of CVE-2017-17947 in the wild and no public exploit code.

All Pulsesecure Pulse Connect Secure vulnerabilities

Sources

Also known as GHSA-23cp-hr68-96ff.

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