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[email protected]CVE-2020-3174

HistoryFeb 26, 2020 - 5:15 p.m.

CVE-2020-3174

2020-02-2617:15:13

CWE-345

[email protected]

web.nvd.nist.gov

cisco

nx-os

software

vulnerability

arp

adjacent attacker

arp table

nvd

cve-2020-3174

4.7 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

4.7 Medium

AI Score

Confidence

High

3.3 Low

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:A/AC:L/Au:N/C:N/I:P/A:N

0.001 Low

EPSS

Percentile

24.7%

JSON

A vulnerability in the anycast gateway feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a device to learn invalid Address Resolution Protocol (ARP) entries. The ARP entries are for nonlocal IP addresses for the subnet. The vulnerability is due to improper validation of a received gratuitous ARP (GARP) request. An attacker could exploit this vulnerability by sending a malicious GARP packet on the local subnet to cause the ARP table on the device to become corrupted. A successful exploit could allow the attacker to populate the ARP table with incorrect entries, which could lead to traffic disruptions.

Affected configurations

NVD

Node

cisconx-osMatch8.1\(1\)

cisconx-osMatch8.4\(1\)

cisconx-osMatch9.3\(1\)

AND

ciscomds_9132tMatch-

ciscomds_9148sMatch-

ciscomds_9148tMatch-

ciscomds_9216Match-

ciscomds_9216aMatch-

ciscomds_9216iMatch-

ciscomds_9222iMatch-

ciscomds_9506Match-

ciscomds_9509Match-

ciscomds_9513Match-

ciscomds_9706Match-

ciscomds_9710Match-

ciscomds_9718Match-

cisconexus_3016Match-

cisconexus_3048Match-

cisconexus_3064Match-

cisconexus_3064-tMatch-

cisconexus_31108pc-vMatch-

cisconexus_31108tc-vMatch-

cisconexus_31128pqMatch-

cisconexus_3132c-zMatch-

cisconexus_3132qMatch-

cisconexus_3132q-vMatch-

cisconexus_3132q-xlMatch-

cisconexus_3164qMatch-

cisconexus_3172Match-

cisconexus_3172pq-xlMatch-

cisconexus_3172tqMatch-

cisconexus_3172tq-32tMatch-

cisconexus_3172tq-xlMatch-

cisconexus_3232c_Match-

cisconexus_3264c-eMatch-

cisconexus_3264qMatch-

cisconexus_3408-sMatch-

cisconexus_34180ycMatch-

cisconexus_3432d-sMatch-

cisconexus_3464cMatch-

cisconexus_3524Match-

cisconexus_3524-xMatch-

cisconexus_3524-xlMatch-

cisconexus_3548Match-

cisconexus_3548-xMatch-

cisconexus_3548-xlMatch-

cisconexus_36180yc-rMatch-

cisconexus_3636c-rMatch-

cisconexus_7000Match-

cisconexus_7700Match-

cisconexus_9000vMatch-

cisconexus_92160yc-xMatch-

cisconexus_92300ycMatch-

cisconexus_92304qcMatch-

cisconexus_92348gc-xMatch-

cisconexus_9236cMatch-

cisconexus_9272qMatch-

cisconexus_93108tc-exMatch-

cisconexus_93108tc-fxMatch-

cisconexus_93120txMatch-

cisconexus_93128txMatch-

cisconexus_93180lc-exMatch-

cisconexus_93180yc-exMatch-

cisconexus_93180yc-fxMatch-

cisconexus_93216tc-fx2Match-

cisconexus_93240yc-fx2Match-

cisconexus_9332cMatch-

cisconexus_9332pqMatch-

cisconexus_93360yc-fx2Match-

cisconexus_9336c-fx2Match-

cisconexus_9336pq_aci_spineMatch-

cisconexus_9348gc-fxpMatch-

cisconexus_9364cMatch-

cisconexus_9372pxMatch-

cisconexus_9372px-eMatch-

cisconexus_9372txMatch-

cisconexus_9372tx-eMatch-

cisconexus_9396pxMatch-

cisconexus_9396txMatch-

cisconexus_9504Match-

cisconexus_9508Match-

cisconexus_9516Match-

CPENameOperatorVersion
cisco:nx-oscisco nx-oseq8.1\(1\)
cisco:nx-oscisco nx-oseq8.4\(1\)
cisco:nx-oscisco nx-oseq9.3\(1\)

CPE	Name	Operator	Version
cisco:nx-os	cisco nx-os	eq	8.1\(1\)
cisco:nx-os	cisco nx-os	eq	8.4\(1\)
cisco:nx-os	cisco nx-os	eq	9.3\(1\)

CNA Affected

[
  {
    "product": "Cisco NX-OS Software 7.3(2)D1(1d)",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "n/a",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-nxos-arp

4.7 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

4.7 Medium

AI Score

Confidence

High

3.3 Low

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:A/AC:L/Au:N/C:N/I:P/A:N

0.001 Low

EPSS

Percentile

24.7%

JSON

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