CVE-2019-1809
Cisco NX-OS Software Authentication Bypass Signature Spoofing Vulnerability
Description
A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.
INFO
Published Date :
May 15, 2019, 11:29 p.m.
Last Modified :
March 24, 2023, 5:46 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
0.8
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-2019-1809.
| URL | Resource |
|---|---|
| http://www.securityfocus.com/bid/108375 | Broken Link Third Party Advisory VDB Entry |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-psvb | 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-2019-1809 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-1809 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]
Mar. 24, 2023
Action Type Old Value New Value Removed CVSS V3 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://www.securityfocus.com/bid/108375 No Types Assigned http://www.securityfocus.com/bid/108375 Broken Link, Third Party Advisory, VDB Entry -
CVE Modified by [email protected]
Oct. 09, 2019
Action Type Old Value New Value Added CVSS V3 Cisco Systems, Inc. AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Added CWE Cisco Systems, Inc. CWE-347 -
CVE Modified by [email protected]
May. 20, 2019
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/108375 [No Types Assigned] -
Initial Analysis by [email protected]
May. 17, 2019
Action Type Old Value New Value Added CVSS V2 (AV:L/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3 AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-psvb No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-psvb Vendor Advisory Added CWE CWE-347 Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 7.3 up to (excluding) 8.1\(1a\) *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 8.2 up to (excluding) 8.3\(1\) OR cpe:2.3:h:cisco:mds_9706:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:mds_9710:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:mds_9718:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 7.2 up to (excluding) 7.3\(3\)d1\(1\) *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 8.0 up to (excluding) 8.2\(3\) OR cpe:2.3:h:cisco:7000_10-slot:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:7000_18-slot:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:7000_4-slot:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:7000_9-slot:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:7700_10-slot:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:7700_18-slot:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:7700_2-slot:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:7700_6-slot:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n77-f312ck-26:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n77-f324fq-25:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n77-f348xp-23:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n77-f430cq-36:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n77-m312cq-26l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n77-m324fq-25l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n77-m348xp-23l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n7k-f248xp-25e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n7k-f306ck-25:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n7k-f312fq-25:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n7k-m202cf-22l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n7k-m206fq-23l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n7k-m224xp-23l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n7k-m324fq-25l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n7k-m348xp-25l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_7000_supervisor_1:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_7000_supervisor_2:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_7000_supervisor_2e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_7700_supervisor_2e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_7700_supervisor_3e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 3.1 up to (excluding) 3.2\(3k\) OR cpe:2.3:h:cisco:ucs_6248up:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ucs_6296up:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ucs_6324:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ucs_6332:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ucs_6332-16up:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-1809 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-2019-1809
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile