7.7
HIGH
CVE-2018-0309
Cisco NX-OS CLI Command SNMP MIB Memory Exhaustion Denial of Service
Description

A vulnerability in the implementation of a specific CLI command and the associated Simple Network Management Protocol (SNMP) MIB for Cisco NX-OS (in standalone NX-OS mode) on Cisco Nexus 3000 and 9000 Series Switches could allow an authenticated, remote attacker to exhaust system memory on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to the incorrect implementation of the CLI command, resulting in a failure to free all allocated memory upon completion. An attacker could exploit this vulnerability by authenticating to the affected device and repeatedly issuing a specific CLI command or sending a specific SNMP poll request for a specific Object Identifier (OID). A successful exploit could allow the attacker to cause the IP routing process to restart or to cause a device reset, resulting in a DoS condition. Cisco Bug IDs: CSCvf23136.

INFO

Published Date :

June 21, 2018, 11:29 a.m.

Last Modified :

Nov. 21, 2024, 3:37 a.m.

Remotely Exploitable :

Yes !

Impact Score :

4.0

Exploitability Score :

3.1
Affected Products

The following products are affected by CVE-2018-0309 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_3048
4 Cisco nexus_3016
5 Cisco nexus_3064
6 Cisco nexus_3064-t
7 Cisco nexus_31108pc-v
8 Cisco nexus_31108tc-v
9 Cisco nexus_31128pq
10 Cisco nexus_3132q
11 Cisco nexus_3132q-v
12 Cisco nexus_3132q-xl
13 Cisco nexus_3164q
14 Cisco nexus_3172
15 Cisco nexus_3172pq-xl
16 Cisco nexus_3172tq
17 Cisco nexus_3172tq-32t
18 Cisco nexus_3172tq-xl
19 Cisco nexus_3232c
20 Cisco nexus_3264q
21 Cisco nexus_9000v
22 Cisco nexus_92160yc-x
23 Cisco nexus_92300yc
24 Cisco nexus_92304qc
25 Cisco nexus_9236c
26 Cisco nexus_9272q
27 Cisco nexus_93108tc-ex
28 Cisco nexus_93120tx
29 Cisco nexus_93128tx
30 Cisco nexus_93180lc-ex
31 Cisco nexus_93180yc-ex
32 Cisco nexus_9332pq
33 Cisco nexus_9372px
34 Cisco nexus_9372px-e
35 Cisco nexus_9372tx
36 Cisco nexus_9372tx-e
37 Cisco nexus_9396px
38 Cisco nexus_9396tx
39 Cisco nexus_9504
40 Cisco nexus_9508
41 Cisco nexus_9516
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-2018-0309.

URL Resource
http://www.securitytracker.com/id/1041169 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-n3k-n9k-clisnmp Vendor Advisory
http://www.securitytracker.com/id/1041169 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-n3k-n9k-clisnmp 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-2018-0309 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-0309 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.securitytracker.com/id/1041169
    Added Reference https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-n3k-n9k-clisnmp
  • 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 CWE Cisco Systems, Inc. CWE-400
  • Initial Analysis by [email protected]

    Aug. 20, 2018

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:S/C:N/I:N/A:C)
    Added CVSS V3 AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
    Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-n3k-n9k-clisnmp No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-n3k-n9k-clisnmp Vendor Advisory
    Changed Reference Type http://www.securitytracker.com/id/1041169 No Types Assigned http://www.securitytracker.com/id/1041169 Third Party Advisory, VDB Entry
    Added CWE CWE-400
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:7.0\(3\)i5\(2\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:7.0\(3\)i6\(1\):*:*:*:*:*:*:* OR cpe:2.3:h:cisco:nexus_3016:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3048:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3064:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3064-t:-:*:*:*:*:*:*:* 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_3132q:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3132q-v:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3132q-xl:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3164q:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3172:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3172pq-xl:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3172tq:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3172tq-32t:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3172tq-xl:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3232c:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3264q:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9000v:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_92160yc-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_92300yc:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_92304qc:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9236c:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9272q:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93108tc-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93128tx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93180lc-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93180yc-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9372px:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9372px-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9372tx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9372tx-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9396px:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9396tx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9504:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9508:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9516:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jun. 24, 2018

    Action Type Old Value New Value
    Added Reference http://www.securitytracker.com/id/1041169 [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-2018-0309 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-2018-0309 weaknesses.

Exploit Prediction

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

0.08 }} -0.03%

score

0.34477

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability