CVE-2018-0163
A vulnerability in the 802.1x multiple-authentication (multi-auth) feature of Cisco IOS Software could allow an unauthenticated, adjacent a…
Published 8 y ago · modified 4 mo ago · JSON
Summary
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.
CISA SSVC assessment
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 23 mo ago
Exploit prediction (EPSS)
0.63% probability of exploitation in the next 30 days, higher than 51% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 3.3 | AV:A/AC:L/Au:N/C:N/I:P/A:N |
Affected products
- n/a Cisco IOS
Classification
- Weakness
- CWE-287 Improper Authentication
- Technology feeds
- Cisco IOS (RSS, critical only)
References
- securityfocus.com /bid/103571 · vdb-entry, x_refsource_BID, x_transferred
- tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dot1x · x_refsource_CONFIRM, x_transferred
Sources
- CVE List: CVE-2018-0163
- NVD: CVE-2018-0163
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