CVE-2017-12230 Privilege escalation in Cisco IOS XE

High 8.8 Published Updated

Authenticated attackers can elevate privileges on Cisco IOS XE devices by exploiting incorrect default permissions in the web UI.

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-2017-12230?

CVE-2017-12230 is a high-severity vulnerability in Cisco Ios Xe, published on 28 Sep 2017. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in the web-based user interface (web UI) of Cisco IOS XE 16.2 could allow an authenticated, remote attacker to elevate their privileges on an affected device. The vulnerability is due to incorrect default permission settings for new users who are created by using the web UI of the affected software. An attacker could exploit this vulnerability by using the web UI of the affected software to create a new user and then logging into the web UI as the newly created user. A successful exploit could allow the attacker to elevate their privileges on the affected device. This vulnerability affects Cisco devices that are running a vulnerable release Cisco IOS XE Software, if the HTTP Server feature is enabled for the device. The newly redesigned, web-based administration UI was introduced in the Denali 16.2 Release of Cisco IOS XE Software. This vulnerability does not affect the web-based administration UI in earlier releases of Cisco IOS XE Software. Cisco Bug IDs: CSCuy83062.

Weakness: CWE-276, CWE-264

Which versions are affected by CVE-2017-12230?

It affects 1 product.

Products include Cisco Ios Xe.

How do I fix CVE-2017-12230?

No fix has been published for CVE-2017-12230 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-12230 being exploited?

There is no known exploitation of CVE-2017-12230 in the wild and no public exploit code.

All Cisco Ios Xe vulnerabilities

Sources

Also known as GHSA-xg78-wwf5-gc23.

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