CVE-2017-6749 Cross-site scripting in Cisco Web Security Appliance

Medium 5.4 Published Updated

An authenticated attacker can inject malicious scripts into the Cisco WSA management interface, potentially compromising user sessions.

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

What is CVE-2017-6749?

CVE-2017-6749 is a medium-severity cross-site scripting vulnerability in Cisco Web Security Appliance, published on 25 Jul 2017. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A vulnerability in the web-based management interface of Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device. Affected Products: virtual and hardware versions of Cisco Web Security Appliance (WSA). More Information: CSCvd88865. Known Affected Releases: 10.1.0-204.

Weakness: CWE-79

Which versions are affected by CVE-2017-6749?

It affects 2 products.

Products include Cisco Web Security Appliance, Cisco Web Security Virtual Appliance.

How do I fix CVE-2017-6749?

No fix has been published for CVE-2017-6749 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-2017-6749 being exploited?

There is no known exploitation of CVE-2017-6749 in the wild and no public exploit code.

All Cisco Web Security Appliance vulnerabilities

Sources

Also known as GHSA-532j-mh9h-gc6c.

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