CVE-2019-12647
Cisco Ident Protocol Handler NULL Pointer Dereference Denial of Service Vulnerability
Description
A vulnerability in the Ident protocol handler of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability exists because the affected software incorrectly handles memory structures, leading to a NULL pointer dereference. An attacker could exploit this vulnerability by opening a TCP connection to specific ports and sending traffic over that connection. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.
INFO
Published Date :
Sept. 25, 2019, 8:15 p.m.
Last Modified :
Oct. 9, 2019, 11:45 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
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-2019-12647.
| URL | Resource |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-identd-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-2019-12647 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-12647 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 -
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-476 -
Initial Analysis by [email protected]
Oct. 02, 2019
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-identd-dos No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-identd-dos Vendor Advisory Added CWE CWE-476 Added CPE Configuration AND OR *cpe:2.3:o:cisco:ios_xe:fuji-16.7.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:fuji-16.8.1:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:1100:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4221:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4321:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4351:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4431:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4451-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1000:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1000:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1001-hx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1001-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1002-hx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_1002-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_900:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_920-10sz-pd:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_920-12cz-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_920-12cz-d:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_920-12sz-im:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_920-24sz-im:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_920-24sz-m:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_920-24tz-m:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_920-4sz-a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:asr_920-4sz-d:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:cloud_services_router_1000v:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_4201:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_4202:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_4206:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_4216:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:network_convergence_system_520:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-12647 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-2019-12647
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.15 }} 0.00%
score
0.49900
percentile