6.7
MEDIUM
CVE-2019-1811
"Cisco NX-OS Software Image Signature Verification Unauthorized Software Installation 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 image on an affected device. The vulnerability exists because software digital signatures are not properly verified during CLI command execution. An attacker could exploit this vulnerability to install an unsigned software image on an affected device.

INFO

Published Date :

May 15, 2019, 11:29 p.m.

Last Modified :

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

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

0.8
Affected Products

The following products are affected by CVE-2019-1811 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 nx-os
2 Cisco nexus_3048
3 Cisco nexus_31108pc-v
4 Cisco nexus_31108tc-v
5 Cisco nexus_31128pq
6 Cisco nexus_3132c-z
7 Cisco nexus_3132q-v
8 Cisco nexus_3132q-x\/3132q-xl
9 Cisco nexus_3164q
10 Cisco nexus_3172pq\/pq-xl
11 Cisco nexus_3172tq-xl
12 Cisco nexus_3232c
13 Cisco nexus_3264c-e
14 Cisco nexus_3264q
15 Cisco nexus_3408-s
16 Cisco nexus_34180yc
17 Cisco nexus_3432d-s
18 Cisco nexus_3464c
19 Cisco nexus_3524-x\/xl
20 Cisco nexus_3548-x\/xl
21 Cisco nexus_36180yc-r
22 Cisco nexus_3636c-r
23 Cisco nexus_92160yc-x
24 Cisco nexus_92300yc
25 Cisco nexus_93108tc-ex
26 Cisco nexus_93108tc-fx
27 Cisco nexus_93120tx
28 Cisco nexus_9316d-gx
29 Cisco nexus_93180lc-ex
30 Cisco nexus_93180yc-ex
31 Cisco nexus_93180yc-fx
32 Cisco nexus_93216tc-fx2
33 Cisco nexus_93240yc-fx2
34 Cisco nexus_9332c
35 Cisco nexus_93360yc-fx2
36 Cisco nexus_9336c-fx2
37 Cisco nexus_9348gc-fxp
38 Cisco nexus_93600cd-gx
39 Cisco nexus_9364c
40 Cisco nexus_9500_supervisor_a
41 Cisco nexus_9500_supervisor_a\+
42 Cisco nexus_9500_supervisor_b
43 Cisco nexus_9500_supervisor_b\+
44 Cisco nexus_9504
45 Cisco nexus_9508
46 Cisco nexus_9516
47 Cisco n9k-c9504-fm-r
48 Cisco n9k-c9508-fm-r
49 Cisco n9k-x9432c-s
50 Cisco n9k-x9464px
51 Cisco n9k-x9464tx2
52 Cisco n9k-x9564px
53 Cisco n9k-x9564tx
54 Cisco n9k-x9636c-r
55 Cisco n9k-x9636c-rx
56 Cisco n9k-x97160yc-ex
57 Cisco n9k-x9732c-ex
58 Cisco n9k-x9732c-fx
59 Cisco n9k-x9736c-ex
60 Cisco n9k-x9736c-fx
61 Cisco n9k-x9788tc-fx
62 Cisco 9432pq
63 Cisco 9536pq
64 Cisco 9636pq
65 Cisco 9736pq
66 Cisco x9636q-r
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-2019-1811.

URL Resource
http://www.securityfocus.com/bid/108425 Broken Link Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-sisv2 Vendor Advisory
http://www.securityfocus.com/bid/108425 Broken Link Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-sisv2 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-2019-1811 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-1811 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 http://www.securityfocus.com/bid/108425
    Added Reference https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-sisv2
  • 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/108425 No Types Assigned http://www.securityfocus.com/bid/108425 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:L/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. 23, 2019

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/108425 [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:C/I:C/A:C)
    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-sisv2 No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-sisv2 Vendor Advisory
    Added CWE CWE-347
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 6.0\(2\) up to (excluding) 7.0\(3\)i7\(5\) *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 9.2 up to (excluding) 9.2\(2\) OR cpe:2.3:h:cisco:nexus_3048:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_31108pc-v:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_31108tc-v:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_31128pq:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3132c-z:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3132q-v:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3132q-x\/3132q-xl:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3164q:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3172pq\/pq-xl:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3172tq-xl:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3232c:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3264c-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3264q:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3408-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_34180yc:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3432d-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3464c:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3524-x\/xl:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3548-x\/xl:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_36180yc-r:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3636c-r:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 7.0\(3\) up to (excluding) 7.0\(3\)f3\(5\) *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 9.2 up to (excluding) 9.2\(2\) OR cpe:2.3:h:cisco:n9k-c9504-fm-r:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-c9508-fm-r:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_36180yc-r:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3636c-r:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions up to (excluding) 7.0\(3\)i7\(5\) *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 9.2 up to (excluding) 9.2\(2\) OR cpe:2.3:h:cisco:9432pq:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:9536pq:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:9636pq:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:9736pq:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-x9432c-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-x9464px:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-x9464tx2:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-x9564px:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-x9564tx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-x9636c-r:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-x9636c-rx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-x97160yc-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-x9732c-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-x9732c-fx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-x9736c-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-x9736c-fx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:n9k-x9788tc-fx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_92160yc-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_92300yc:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93108tc-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93108tc-fx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9316d-gx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93180lc-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93180yc-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93180yc-fx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93216tc-fx2:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93240yc-fx2:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9332c:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93360yc-fx2:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9336c-fx2:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9348gc-fxp:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93600cd-gx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9364c:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9500_supervisor_a:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9500_supervisor_a\+:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9500_supervisor_b:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9500_supervisor_b\+:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9504:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9508:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9516:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:x9636q-r:-:*:*:*:*:*:*:*
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-2019-1811 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-2019-1811 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

0.11230

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability