CVE-2019-1758 Cisco IOS Software Catalyst 6500 Series 802.1x Authentication Bypass Vulnerability
An unauthenticated adjacent attacker can bypass 802.1x authentication on Cisco Catalyst 6500 switches to gain intermittent 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-2019-1758?
CVE-2019-1758 is a medium-severity authentication bypass vulnerability in Cisco Ios, published on 28 Mar 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in 802.1x function of Cisco IOS Software on the Catalyst 6500 Series Switches could allow an unauthenticated, adjacent attacker to access the network prior to authentication. The vulnerability is due to how the 802.1x packets are handled in the process path. An attacker could exploit this vulnerability by attempting to connect to the network on an 802.1x configured port. A successful exploit could allow the attacker to intermittently obtain access to the network.
Weakness: CWE-287
Which versions are affected by CVE-2019-1758?
It affects 1 product.
Products include Cisco Ios.
How do I fix CVE-2019-1758?
No fix has been published for CVE-2019-1758 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-2019-1758 being exploited?
There is no known exploitation of CVE-2019-1758 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-w5hf-6q7f-jjqv.