CVE-2020-3585
CVSS V2 Medium 4.3
CVSS V3 Low 3.7
Description
A vulnerability in the TLS handler of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 1000 Series firewalls could allow an unauthenticated, remote attacker to gain access to sensitive information. The vulnerability is due to improper implementation of countermeasures against the Bleichenbacher attack for cipher suites that rely on RSA for key exchange. An attacker could exploit this vulnerability by sending crafted TLS messages to the device, which would act as an oracle and allow the attacker to carry out a chosen-ciphertext attack. A successful exploit could allow the attacker to perform cryptanalytic operations that may allow decryption of previously captured TLS sessions to the affected device. To exploit this vulnerability, an attacker must be able to perform both of the following actions: Capture TLS traffic that is in transit between clients and the affected device Actively establish a considerable number of TLS connections to the affected device
Overview
- CVE ID
- CVE-2020-3585
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-10-21T19:15:18
- Last Modified Date
- 2022-05-26T15:11:51
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | 1 | OR | 6.4.0.10 | |
| cpe:2.3:o:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | 1 | OR | 6.5.0 | 6.5.0.5 |
| cpe:2.3:o:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | 1 | OR | 6.6.0 | 6.6.1 |
| cpe:2.3:h:cisco:firepower_1000:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:firepower_1010:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:firepower_1120:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:firepower_1140:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:firepower_1150:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* | 1 | OR | 9.13.1.13 | |
| cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* | 1 | OR | 9.14 | 9.14.1.30 |
| cpe:2.3:h:cisco:firepower_1000:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:firepower_1010:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:firepower_1120:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:firepower_1140:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:firepower_1150:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- 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:H/PR:N/UI:N/S:U/C:L/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- NONE
- Base Score
- 3.7
- Base Severity
- LOW
- Exploitability Score
- 2.2
- Impact Score
- 1.4
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-tls-bb-2g9uWkP | Patch Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-3585 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3585 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:21:27 | Added to TrackCVE | |||
| 2022-12-05 00:47:52 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-05 00:47:52 | 2020-10-21T19:15Z | 2020-10-21T19:15:18 | CVE Published Date | updated |
| 2022-12-05 00:47:52 | 2022-05-26T15:11:51 | CVE Modified Date | updated | |
| 2022-12-05 00:47:52 | Analyzed | Vulnerability Status | updated |