Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Adaptive Security Appliance Device Manager | >= 9.8, < 9.8.4 |
| Cisco | Firepower Threat Defense | >= 6.2.1, < 6.2.3.12 |
| Cisco | Asa-5506-X | - |
| Cisco | Asa-5506H-X | - |
| Cisco | Asa-5506W-X | - |
| Cisco | Asa-5508-X | - |
| Cisco | Asa-5516-X | - |
| Cisco | Asa-5525-X | - |
| Cisco | Asa-5545-X | - |
| Cisco | Asa-5555-X | - |
| Cisco | Asa 5500 | - |
Related Weaknesses (CWE)
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
FAQ
What is CVE-2019-1715?
CVE-2019-1715 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 Threa...
How severe is CVE-2019-1715?
CVE-2019-1715 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-1715?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Adaptive Security Appliance Device Manager, Cisco Firepower Threat Defense, Cisco Asa-5506-X, Cisco Asa-5506H-X, Cisco Asa-5506W-X.