CVE-2019-1715
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
A vulnerability in the Deterministic Random Bit Generator (DRBG), also known as Pseudorandom Number Generator (PRNG), used in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a cryptographic collision, enabling the attacker to discover the private key of an affected device. The vulnerability is due to insufficient entropy in the DRBG when generating cryptographic keys. An attacker could exploit this vulnerability by generating a large number of cryptographic keys on an affected device and looking for collisions with target devices. A successful exploit could allow the attacker to impersonate an affected target device or to decrypt traffic secured by an affected key that is sent to or from an affected target device.
Overview
- CVE ID
- CVE-2019-1715
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Modified
- Published Version
- 2019-05-03T17:29:00
- Last Modified Date
- 2019-10-09T23:47:48
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:a:cisco:adaptive_security_appliance_device_manager:*:*:*:*:*:*:*:* | 1 | OR | 9.8 | 9.8.4 |
| cpe:2.3:a:cisco:adaptive_security_appliance_device_manager:*:*:*:*:*:*:*:* | 1 | OR | 9.9 | 9.9.2.50 |
| cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | 1 | OR | 6.2.1 | 6.2.3.12 |
| cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | 1 | OR | 6.3.0 | 6.3.0.3 |
| cpe:2.3:h:cisco:asa-5506-x:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa-5506h-x:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa-5506w-x:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa-5508-x:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa-5516-x:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa-5525-x:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa-5545-x:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa-5555-x:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa_5500:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- 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-20190501-asa-ftd-entropy | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-1715 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1715 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:03:02 | Added to TrackCVE | |||
| 2022-12-03 20:20:54 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-03 20:20:54 | 2019-05-03T17:29Z | 2019-05-03T17:29:00 | CVE Published Date | updated |
| 2022-12-03 20:20:54 | 2019-10-09T23:47:48 | CVE Modified Date | updated | |
| 2022-12-03 20:20:54 | Modified | Vulnerability Status | updated |