Vulnerability Monitor

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CVE-2021-28503

The impact of this vulnerability is that Arista's EOS eAPI may skip re-evaluating user credentials when certificate based authentication is used, which allows remote attackers to access the device via eAPI.

Published

2022-02-04T23:15:11.350

Last Modified

2024-11-21T05:59:47.697

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.4 (HIGH)

CVSSv2 Vector

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

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

8.6

Impact Score

6.4

Weaknesses
  • Type: Secondary
    CWE-305
  • Type: Primary
    CWE-287
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System arista eos ≤ 4.22.9m Yes
Operating System arista eos ≤ 4.23.9 Yes
Operating System arista eos ≤ 4.24.7 Yes
Operating System arista eos ≤ 4.25.5 Yes
Operating System arista eos ≤ 4.26.2 Yes
References