CVE-2021-1504
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
Multiple vulnerabilities in Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. These vulnerabilities are due to lack of proper input validation of the HTTPS request. An attacker could exploit these vulnerabilities by sending a crafted HTTPS request to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Note: This vulnerability affects only specific AnyConnect and WebVPN configurations. For more information, see the Vulnerable Products section.
Overview
- CVE ID
- CVE-2021-1504
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-04-29T18:15:09
- Last Modified Date
- 2021-05-05T20:31:53
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* | 1 | OR | 9.7 | 9.8.4.35 |
| cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* | 1 | OR | 9.9 | 9.9.2.85 |
| cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* | 1 | OR | 9.10 | 9.12.4.10 |
| cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* | 1 | OR | 9.13 | 9.13.1.21 |
| cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* | 1 | OR | 9.14 | 9.14.2.4 |
| cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* | 1 | OR | 9.15 | 9.15.1.7 |
| cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | 1 | OR | 6.5.0 | 6.6.4 |
| cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | 1 | OR | 6.7.0 | 6.7.0.1 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- 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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-vpn-dos-fpBcpEcD | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-1504 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1504 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:16:53 | Added to TrackCVE | |||
| 2022-12-05 01:20:18 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-05 01:20:19 | 2021-04-29T18:15Z | 2021-04-29T18:15:09 | CVE Published Date | updated |
| 2022-12-05 01:20:19 | 2021-05-05T20:31:53 | CVE Modified Date | updated | |
| 2022-12-05 01:20:19 | Analyzed | Vulnerability Status | updated |