6.4
MEDIUM
CVE-2019-1732
Cisco NX-OS Software Remote Package Manager RPM TOCTOU Command Injection Vulnerability
Description

A vulnerability in the Remote Package Manager (RPM) subsystem of Cisco NX-OS Software could allow an authenticated, local attacker with administrator credentials to leverage a time-of-check, time-of-use (TOCTOU) race condition to corrupt local variables, which could lead to arbitrary command injection. The vulnerability is due to the lack of a proper locking mechanism on critical variables that need to stay static until used. An attacker could exploit this vulnerability by authenticating to an affected device and issuing a set of RPM-related CLI commands. A successful exploit could allow the attacker to perform arbitrary command injection. The attacker would need administrator credentials for the targeted device.

INFO

Published Date :

May 15, 2019, 5:29 p.m.

Last Modified :

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

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

0.5
Affected Products

The following products are affected by CVE-2019-1732 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_3000
3 Cisco nx_os
4 Cisco nexus_9000
5 Cisco nexus_3100
6 Cisco nexus_3100-z
7 Cisco nexus_3100v
8 Cisco nexus_3200
9 Cisco nexus_3400
10 Cisco nexus_3500
11 Cisco nexus_3524-x
12 Cisco nexus_3524-xl
13 Cisco nexus_3548-x
14 Cisco nexus_3548-xl
15 Cisco nexus_3600
16 Cisco nexus_9200
17 Cisco nexus_9300
18 Cisco nexus_9500
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-2019-1732.

URL Resource
http://www.securityfocus.com/bid/108361 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-rpm-injec Vendor Advisory
http://www.securityfocus.com/bid/108361 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-rpm-injec 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-2019-1732 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-1732 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/108361
    Added Reference https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-rpm-injec
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Nov. 03, 2021

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V3.1 NIST AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://www.securityfocus.com/bid/108361 Third Party Advisory http://www.securityfocus.com/bid/108361 Third Party Advisory, VDB Entry
    Removed CWE NIST CWE-78
    Added CWE NIST CWE-667
  • 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-78
  • Initial Analysis by [email protected]

    May. 17, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:M/Au:N/C:C/I:C/A:C)
    Added CVSS V3 AV:L/AC:H/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-rpm-injec No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-rpm-injec Vendor Advisory
    Changed Reference Type http://www.securityfocus.com/bid/108361 No Types Assigned http://www.securityfocus.com/bid/108361 Third Party Advisory
    Added CWE CWE-78
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 7.0\(3\)i4 up to (excluding) 7.0\(3\)i7\(4\) OR cpe:2.3:h:cisco:nexus_3000:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3100:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3100-z:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3100v:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3200:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3400:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3500:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3524-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3524-xl:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3548-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3548-xl:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9000:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9200:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9300:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9500:-:*:*:*:*:*:*:*
    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\(5\) OR cpe:2.3:h:cisco:nexus_3600:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    May. 17, 2019

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/108361 [No Types Assigned]
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-2019-1732 is associated with the following CWEs:

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

0.05784

percentile

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