7.5
HIGH
CVE-2019-1715
Cisco ASA Software and FTD Software Cryptographic Key Collision 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.

INFO

Published Date :

May 3, 2019, 5:29 p.m.

Last Modified :

Nov. 21, 2024, 4:37 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2019-1715 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Cisco firepower_management_center
2 Cisco adaptive_security_appliance_software
3 Cisco firepower_threat_defense
4 Cisco asa_5500
5 Cisco adaptive_security_appliance_device_manager
6 Cisco secure_firewall_management_center
7 Cisco asa-5506-x
8 Cisco asa-5506h-x
9 Cisco asa-5545-x
10 Cisco asa-5555-x
11 Cisco asa-5506w-x
12 Cisco asa-5508-x
13 Cisco asa-5516-x
14 Cisco asa-5525-x
: Total Affected Vendor : 1 | Products : 14
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-1715.

URL Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-entropy Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-entropy Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-1715 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-1715 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-entropy
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CVSS V3 Cisco Systems, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    Added CWE Cisco Systems, Inc. CWE-332
  • Initial Analysis by [email protected]

    May. 09, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-entropy No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-entropy Vendor Advisory
    Added CWE CWE-332
    Added CPE Configuration AND OR *cpe:2.3:a:cisco:adaptive_security_appliance_device_manager:*:*:*:*:*:*:*:* versions from (including) 9.8 up to (excluding) 9.8.4 *cpe:2.3:a:cisco:adaptive_security_appliance_device_manager:*:*:*:*:*:*:*:* versions from (including) 9.9 up to (excluding) 9.9.2.50 *cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* versions from (including) 6.2.1 up to (excluding) 6.2.3.12 *cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* versions from (including) 6.3.0 up to (excluding) 6.3.0.3 OR cpe:2.3:h:cisco:asa-5506-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asa-5506h-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asa-5506w-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asa-5508-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asa-5516-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asa-5525-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asa-5545-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asa-5555-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asa_5500:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-1715 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-1715 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.34 }} 0.00%

score

0.66680

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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