CVE-2021-22955
CVSS V2 Medium 4.3
CVSS V3 High 7.5
Description
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.
Overview
- CVE ID
- CVE-2021-22955
- Assigner
- support@hackerone.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-12-07T14:15:08
- Last Modified Date
- 2021-12-08T19:43:41
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:* | 1 | OR | 11.1-65.23 | |
| cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:* | 1 | OR | 12.1 | 12.1-63.22 |
| cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:* | 1 | OR | 13.0 | 13.0-83.27 |
| cpe:2.3:h:citrix:application_delivery_controller:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:a:citrix:gateway:*:*:*:*:*:*:*:* | 1 | OR | 11.1-65.23 | |
| cpe:2.3:a:citrix:gateway:*:*:*:*:*:*:*:* | 1 | OR | 12.1 | 12.1-63.22 |
| cpe:2.3:a:citrix:gateway:*:*:*:*:*:*:*:* | 1 | OR | 13.0 | 13.0-83.27 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://support.citrix.com/article/CTX330728 | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-22955 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22955 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:42:42 | Added to TrackCVE | |||
| 2022-12-06 03:05:30 | cve-assignments@hackerone.com | support@hackerone.com | CVE Assigner | updated |
| 2022-12-06 03:05:30 | 2021-12-07T14:15Z | 2021-12-07T14:15:08 | CVE Published Date | updated |
| 2022-12-06 03:05:30 | 2021-12-08T19:43:41 | CVE Modified Date | updated | |
| 2022-12-06 03:05:30 | Analyzed | Vulnerability Status | updated |