CVE-2019-1758

Cisco IOS Software Catalyst 6500 Series 802.1x Authentication Bypass Vulnerability

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.

Category

4.7
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.22%
Vendor Advisory cisco.com
Affected: Cisco Cisco IOS Software
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-c6500 patch vendor advisory
http://www.securityfocus.com/bid/107616 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2019-1758?
CVE-2019-1758 has been scored as a medium severity vulnerability.
How to fix CVE-2019-1758?
To fix CVE-2019-1758, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-1758 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-1758 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-1758?
CVE-2019-1758 affects Cisco Cisco IOS Software.
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