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7.8
HIGH CVSS 3.1
CVE-2019-1596
Cisco NX-OS Software Bash Shell Privilege Escalation Vulnerability
Description

A vulnerability in the Bash shell implementation for Cisco NX-OS Software could allow an authenticated, local attacker to escalate their privilege level to root. The attacker must authenticate with valid user credentials. The vulnerability is due to incorrect permissions of a system executable. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the Bash prompt. A successful exploit could allow the attacker to escalate their privilege level to root. Nexus 3000 Series Switches are affected in versions prior to 7.0(3)I7(4). Nexus 3500 Platform Switches are affected in versions prior to 7.0(3)I7(4). Nexus 3600 Platform Switches are affected in versions prior to 7.0(3)F3(5). Nexus 9000 Series Switches in Standalone NX-OS Mode are affected in versions prior to 7.0(3)I7(4). Nexus 9500 R-Series Line Cards and Fabric Modules are affected in versions prior to 7.0(3)F3(5).

INFO

Published Date :

March 7, 2019, 7:29 p.m.

Last Modified :

Nov. 21, 2024, 4:36 a.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2019-1596 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 nx-os
3 Cisco nexus_3000
4 Cisco nexus_9000
5 Cisco nexus_3500
6 Cisco nexus_3600
7 Cisco nexus_9500
: Total Affected Vendor : 1 | Products : 7
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 HIGH [email protected]
CVSS 3.0 HIGH [email protected]
CVSS 3.1 HIGH [email protected]
Solution
This information is provided by the 3rd party feeds.
  • Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCvj58962, and CSCvk71078
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-2019-1596.

URL Resource
http://www.securityfocus.com/bid/107340 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-pe Patch Vendor Advisory
http://www.securityfocus.com/bid/107340 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-pe Patch Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-1596 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-2019-1596 weaknesses.

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-2019-1596 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2019-1596 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/107340
    Added Reference https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-pe
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Oct. 08, 2020

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Removed CWE NIST CWE-264
    Added CWE NIST CWE-732
  • 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:L/UI:N/S:U/C:H/I:H/A:H
    Added CWE Cisco Systems, Inc. CWE-264
  • Modified Analysis by [email protected]

    Mar. 12, 2019

    Action Type Old Value New Value
    Changed Reference Type http://www.securityfocus.com/bid/107340 No Types Assigned http://www.securityfocus.com/bid/107340 Third Party Advisory, VDB Entry
    Changed CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions up to (excluding) 7.0\(3\)i7\(4\) OR cpe:2.3:h:cisco:nexus_3000:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions up to (excluding) 7.0\(3\)i4\(9\) *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 7.0\(3\)i5 up to (excluding) 7.0\(3\)i7\(4\) OR cpe:2.3:h:cisco:nexus_3000:-:*:*:*:*:*:*:*
    Changed CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions up to (excluding) 7.0(3)i7(4) OR cpe:2.3:h:cisco:nexus_3500:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 7.0(3)i7 up to (excluding) 7.0(3)i7(4) OR cpe:2.3:h:cisco:nexus_3500:-:*:*:*:*:*:*:*
    Changed CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions up to (excluding) 7.0\(3\)f3\(5\) OR cpe:2.3:h:cisco:nexus_3600:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 7.0\(3\)f3\(1\) up to (excluding) 7.0\(3\)f3\(5\) OR cpe:2.3:h:cisco:nexus_3600:-:*:*:*:*:*:*:*
    Changed CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions up to (excluding) 7.0\(3\)i7\(4\) OR cpe:2.3:h:cisco:nexus_9000:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions up to (excluding) 7.0\(3\)i4\(9\) *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 7.0\(3\)i5 up to (excluding) 7.0\(3\)i7\(4\) OR cpe:2.3:h:cisco:nexus_9000:-:*:*:*:*:*:*:*
    Changed CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions up to (excluding) 7.0\(3\)f3\(5\) OR cpe:2.3:h:cisco:nexus_9500:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 7.0(3)f3(1) up to (excluding) 7.0\(3\)f3\(5\) OR cpe:2.3:h:cisco:nexus_9500:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 11, 2019

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/107340 [No Types Assigned]
  • Initial Analysis by [email protected]

    Mar. 08, 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:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-pe No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-pe Patch, Vendor Advisory
    Added CWE CWE-264
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions up to (excluding) 7.0\(3\)i7\(4\) OR cpe:2.3:h:cisco:nexus_3000:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions up to (excluding) 7.0(3)i7(4) OR cpe:2.3:h:cisco:nexus_3500:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions up to (excluding) 7.0\(3\)f3\(5\) OR cpe:2.3:h:cisco:nexus_3600:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions up to (excluding) 7.0\(3\)i7\(4\) OR cpe:2.3:h:cisco:nexus_9000:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions up to (excluding) 7.0\(3\)f3\(5\) OR cpe:2.3:h:cisco:nexus_9500:-:*:*:*:*:*:*:*
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.
Vulnerability Scoring Details
Base CVSS Score: 7.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 7.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 7.2
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

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

0.15 }} -0.04%

score

0.32275

percentile