CVE-2017-3839 XML external entity in Cisco Secure Access Control System

Medium 4.3 Published Updated

Unauthenticated remote attackers can exploit an XML External Entity flaw in the web interface to read sensitive system information.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2017-3839?

CVE-2017-3839 is a medium-severity vulnerability in Cisco Secure Access Control System, published on 22 Feb 2017. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An XML External Entity vulnerability in the web-based user interface of the Cisco Secure Access Control System (ACS) could allow an unauthenticated, remote attacker to have read access to part of the information stored in the affected system. More Information: CSCvc04845. Known Affected Releases: 5.8(2.5).

Weakness: CWE-611

Which versions are affected by CVE-2017-3839?

It affects 1 product.

Products include Cisco Secure Access Control System.

How do I fix CVE-2017-3839?

No fix has been published for CVE-2017-3839 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-3839 being exploited?

There is no known exploitation of CVE-2017-3839 in the wild and no public exploit code.

Sources

Also known as GHSA-vgvw-m3x5-grc3.

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