Vulnerability Monitor

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CVE-2020-3231

A vulnerability in the 802.1X feature of Cisco Catalyst 2960-L Series Switches and Cisco Catalyst CDB-8P Switches could allow an unauthenticated, adjacent attacker to forward broadcast traffic before being authenticated on the port. The vulnerability exists because broadcast traffic that is received on the 802.1X-enabled port is mishandled. An attacker could exploit this vulnerability by sending broadcast traffic on the port before being authenticated. A successful exploit could allow the attacker to send and receive broadcast traffic on the 802.1X-enabled port before authentication.

Published

2020-06-03T18:15:21.090

Last Modified

2024-11-21T05:30:37.060

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.7 (MEDIUM)

CVSSv2 Vector

AV:A/AC:M/Au:N/C:P/I:N/A:N

  • Access Vector: ADJACENT_NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: NONE
  • Availability Impact: NONE
Exploitability Score

5.5

Impact Score

2.9

Weaknesses
  • Type: Secondary
    CWE-284
  • Type: Primary
    CWE-863
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios 15.2\(5\)e2 Yes
Operating System cisco ios 15.2\(5\)ex Yes
Operating System cisco ios 15.2\(5a\)e Yes
Operating System cisco ios 15.2\(5b\)e Yes
Operating System cisco ios 15.2\(5c\)e Yes
Operating System cisco ios 15.2\(6\)e Yes
Operating System cisco ios 15.2\(6\)e0c Yes
Operating System cisco ios 15.2\(6\)e1 Yes
Operating System cisco ios 15.2\(6\)e1a Yes
Operating System cisco ios 15.2\(6\)e1s Yes
Operating System cisco ios 15.2\(6\)e2 Yes
Operating System cisco ios 15.2\(6\)e2b Yes
Operating System cisco ios 15.2\(6\)e3 Yes
Operating System cisco ios 15.2\(6\)e4 Yes
Operating System cisco ios 15.2\(7\)e Yes
Operating System cisco ios 15.2\(7\)e0a Yes
Operating System cisco ios 15.2\(7\)e0b Yes
Operating System cisco ios 15.2\(7\)e0s Yes
Operating System cisco ios 15.2\(7a\)e0b Yes
Operating System cisco ios 15.2\(7b\)e0b Yes
Operating System cisco ios 15.3\(3\)jaa1 Yes
Operating System cisco ios 15.3\(3\)jpj Yes
References