Vulnerability Monitor

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CVE-2021-22955

A unauthenticated denial of service vulnerability exists in Citrix ADC <13.0-83.27, <12.1-63.22 and 11.1-65.23 when configured as a VPN (Gateway) or AAA virtual server could allow an attacker to cause a temporary disruption of the Management GUI, Nitro API, and RPC communication.

Published

2021-12-07T14:15:08.890

Last Modified

2024-11-21T05:51:00.833

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

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

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

8.6

Impact Score

2.9

Weaknesses
  • Type: Secondary
    CWE-400
  • Type: Primary
    CWE-400
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System citrix application_delivery_controller_firmware ≤ 11.1-65.23 Yes
Operating System citrix application_delivery_controller_firmware < 12.1-63.22 Yes
Operating System citrix application_delivery_controller_firmware < 13.0-83.27 Yes
Hardware citrix application_delivery_controller - No
Application citrix gateway < 11.1-65.23 Yes
Application citrix gateway < 12.1-63.22 Yes
Application citrix gateway < 13.0-83.27 Yes
References