CVE-2018-0163 Auth bypass in Cisco IOS
An unauthenticated adjacent attacker can bypass 802.1x authentication on multi-auth ports to gain unauthorized network access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-0163?
CVE-2018-0163 is a medium-severity authentication bypass vulnerability in Cisco Ios, published on 28 Mar 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the 802.1x multiple-authentication (multi-auth) feature of Cisco IOS Software could allow an unauthenticated, adjacent attacker to bypass the authentication phase on an 802.1x multi-auth port. The vulnerability is due to a logic change error introduced into the code. An attacker could exploit this vulnerability by trying to access an 802.1x multi-auth port after a successful supplicant has authenticated. An exploit could allow the attacker to bypass the 802.1x access controls and obtain access to the network. Cisco Bug IDs: CSCvg69701.
Weakness: CWE-287
Which versions are affected by CVE-2018-0163?
It affects 1 product.
Products include Cisco Ios.
How do I fix CVE-2018-0163?
No fix has been published for CVE-2018-0163 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2018-0163 being exploited?
There is no known exploitation of CVE-2018-0163 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios
- CVE-2017-12240 Cisco IOS and IOS XE Software DHCP Remote Code Execution
- CVE-2017-3881 Cisco IOS and IOS XE Remote Code Execution
- CVE-2018-0167 Cisco IOS, XR, and XE Software Buffer Overflow
- CVE-2017-6736 Cisco IOS and IOS XE Software SNMP Remote Code Execution
- CVE-2017-6737 Cisco IOS and IOS XE Software SNMP Remote Code Execution
Sources
Also known as GHSA-hmgw-34q4-8g9x.