CVE-2019-1873
Cisco ASA and FTD TLS/SSL Packet Header Validation Remote Reboot Vulnerability
Description
A vulnerability in the cryptographic driver for Cisco Adaptive Security Appliance Software (ASA) and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to reboot unexpectedly. The vulnerability is due to incomplete input validation of a Secure Sockets Layer (SSL) or Transport Layer Security (TLS) ingress packet header. An attacker could exploit this vulnerability by sending a crafted TLS/SSL packet to an interface on the targeted device. An exploit could allow the attacker to cause the device to reload, which will result in a denial of service (DoS) condition. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed and transparent firewall mode and in single or multiple context mode. This vulnerability can be triggered by IPv4 and IPv6 traffic. A valid SSL or TLS session is required to exploit this vulnerability.
INFO
Published Date :
July 10, 2019, 6:15 p.m.
Last Modified :
Oct. 16, 2020, 3:11 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.0
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2019-1873
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.
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-2019-1873
.
URL | Resource |
---|---|
http://www.securityfocus.com/bid/109123 | Third Party Advisory VDB Entry |
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190710-asa-ftd-dos | 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-2019-1873
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-1873
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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Oct. 16, 2020
Action Type Old Value New Value Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H Removed CWE NIST CWE-400 Added CWE NIST CWE-20 -
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:C/C:N/I:N/A:H Added CWE Cisco Systems, Inc. CWE-400 -
Initial Analysis by [email protected]
Jul. 18, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://www.securityfocus.com/bid/109123 No Types Assigned http://www.securityfocus.com/bid/109123 Third Party Advisory, VDB Entry Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190710-asa-ftd-dos No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190710-asa-ftd-dos Vendor Advisory Added CWE CWE-400 Added CPE Configuration AND OR *cpe:2.3:o:cisco:asa_5506-x_firmware:9.6\(4.16\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5506-x_firmware:9.8\(3.8\):*:*:*:*:*:*:* OR cpe:2.3:h:cisco:asa_5506-x:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:asa_5506h-x_firmware:9.6\(4.16\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5506h-x_firmware:9.8\(3.8\):*:*:*:*:*:*:* OR cpe:2.3:h:cisco:asa_5506h-x:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:asa_5506w-x_firmware:9.6\(4.16\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5506w-x_firmware:9.8\(3.8\):*:*:*:*:*:*:* OR cpe:2.3:h:cisco:asa_5506w-x:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:asa_5508-x_firmware:9.6\(4.16\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5508-x_firmware:9.8\(3.8\):*:*:*:*:*:*:* OR cpe:2.3:h:cisco:asa_5508-x:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:asa_5516-x_firmware:9.6\(4.16\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:asa_5516-x_firmware:9.8\(3.8\):*:*:*:*:*:*:* OR cpe:2.3:h:cisco:asa_5516-x:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 12, 2019
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/109123 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-1873
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-2019-1873
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.16 }} 0.00%
score
0.50347
percentile