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[email protected]CVE-2021-1231

HistoryFeb 24, 2021 - 8:15 p.m.

CVE-2021-1231

2021-02-2420:15:13

CWE-284

CWE-346

[email protected]

web.nvd.nist.gov

cve-2021-1231

nexus 9000

lldp

aci

network security

vulnerability

nvd

4.7 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

4.7 Medium

AI Score

Confidence

High

2.9 Low

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

24.7%

JSON

A vulnerability in the Link Layer Discovery Protocol (LLDP) for Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an unauthenticated, adjacent attacker to disable switching on a small form-factor pluggable (SFP) interface. This vulnerability is due to incomplete validation of the source of a received LLDP packet. An attacker could exploit this vulnerability by sending a crafted LLDP packet on an SFP interface to an affected device. A successful exploit could allow the attacker to disable switching on the SFP interface, which could disrupt network traffic.

Affected configurations

NVD

Node

cisconx-osMatch11.0\(1b\)

cisconx-osMatch11.0\(1c\)

cisconx-osMatch11.0\(1d\)

cisconx-osMatch11.0\(1e\)

cisconx-osMatch11.0\(2j\)

cisconx-osMatch11.0\(2m\)

cisconx-osMatch11.0\(3f\)

cisconx-osMatch11.0\(3i\)

cisconx-osMatch11.0\(3k\)

cisconx-osMatch11.0\(3n\)

cisconx-osMatch11.0\(3o\)

cisconx-osMatch11.0\(4g\)

cisconx-osMatch11.0\(4h\)

cisconx-osMatch11.0\(4o\)

cisconx-osMatch11.0\(4q\)

cisconx-osMatch11.1\(1j\)

cisconx-osMatch11.1\(1o\)

cisconx-osMatch11.1\(1r\)

cisconx-osMatch11.1\(1s\)

cisconx-osMatch11.1\(2h\)

cisconx-osMatch11.1\(2i\)

cisconx-osMatch11.1\(3f\)

cisconx-osMatch11.1\(4e\)

cisconx-osMatch11.1\(4f\)

cisconx-osMatch11.1\(4g\)

cisconx-osMatch11.1\(4i\)

cisconx-osMatch11.1\(4l\)

cisconx-osMatch11.1\(4m\)

cisconx-osMatch11.2\(1i\)

cisconx-osMatch11.2\(1k\)

cisconx-osMatch11.2\(1m\)

cisconx-osMatch11.2\(2g\)

cisconx-osMatch11.2\(2h\)

cisconx-osMatch11.2\(2i\)

cisconx-osMatch11.2\(2j\)

cisconx-osMatch11.2\(3c\)

cisconx-osMatch11.2\(3e\)

cisconx-osMatch11.2\(3h\)

cisconx-osMatch11.2\(3m\)

cisconx-osMatch11.3\(1g\)

cisconx-osMatch11.3\(1h\)

cisconx-osMatch11.3\(1i\)

cisconx-osMatch11.3\(1j\)

cisconx-osMatch11.3\(2f\)

cisconx-osMatch11.3\(2h\)

cisconx-osMatch11.3\(2i\)

cisconx-osMatch11.3\(2j\)

cisconx-osMatch11.3\(2k\)

cisconx-osMatch12.0\(1m\)

cisconx-osMatch12.0\(1n\)

cisconx-osMatch12.0\(1o\)

cisconx-osMatch12.0\(1p\)

cisconx-osMatch12.0\(1q\)

cisconx-osMatch12.0\(1r\)

cisconx-osMatch12.0\(2f\)

cisconx-osMatch12.0\(2g\)

cisconx-osMatch12.0\(2h\)

cisconx-osMatch12.0\(2l\)

cisconx-osMatch12.0\(2m\)

cisconx-osMatch12.0\(2n\)

cisconx-osMatch12.0\(2o\)

cisconx-osMatch12.1\(1h\)

cisconx-osMatch12.1\(1i\)

cisconx-osMatch12.1\(2e\)

cisconx-osMatch12.1\(2g\)

cisconx-osMatch12.1\(2k\)

cisconx-osMatch12.1\(3g\)

cisconx-osMatch12.1\(3h\)

cisconx-osMatch12.1\(3j\)

cisconx-osMatch12.1\(4a\)

cisconx-osMatch12.2\(1k\)

cisconx-osMatch12.2\(1n\)

cisconx-osMatch12.2\(1o\)

cisconx-osMatch12.2\(2e\)

cisconx-osMatch12.2\(2f\)

cisconx-osMatch12.2\(2i\)

cisconx-osMatch12.2\(2j\)

cisconx-osMatch12.2\(2k\)

cisconx-osMatch12.2\(2q\)

cisconx-osMatch12.2\(3j\)

cisconx-osMatch12.2\(3p\)

cisconx-osMatch12.2\(3r\)

cisconx-osMatch12.2\(3s\)

cisconx-osMatch12.2\(3t\)

cisconx-osMatch12.2\(4f\)

cisconx-osMatch12.2\(4p\)

cisconx-osMatch12.2\(4q\)

cisconx-osMatch12.2\(4r\)

cisconx-osMatch12.3\(1e\)

cisconx-osMatch12.3\(1f\)

cisconx-osMatch12.3\(1i\)

cisconx-osMatch12.3\(1l\)

cisconx-osMatch12.3\(1o\)

cisconx-osMatch12.3\(1p\)

cisconx-osMatch13.0\(1k\)

cisconx-osMatch13.0\(2h\)

cisconx-osMatch13.0\(2k\)

cisconx-osMatch13.0\(2n\)

cisconx-osMatch13.1\(1i\)

cisconx-osMatch13.1\(2m\)

cisconx-osMatch13.1\(2o\)

cisconx-osMatch13.1\(2p\)

cisconx-osMatch13.1\(2q\)

cisconx-osMatch13.1\(2s\)

cisconx-osMatch13.1\(2t\)

cisconx-osMatch13.1\(2u\)

cisconx-osMatch13.1\(2v\)

cisconx-osMatch13.2\(1l\)

cisconx-osMatch13.2\(1m\)

cisconx-osMatch13.2\(2l\)

cisconx-osMatch13.2\(2o\)

cisconx-osMatch13.2\(3i\)

cisconx-osMatch13.2\(3j\)

cisconx-osMatch13.2\(3n\)

cisconx-osMatch13.2\(3o\)

cisconx-osMatch13.2\(3r\)

cisconx-osMatch13.2\(3s\)

cisconx-osMatch13.2\(4d\)

cisconx-osMatch13.2\(4e\)

cisconx-osMatch13.2\(5d\)

cisconx-osMatch13.2\(5e\)

cisconx-osMatch13.2\(5f\)

cisconx-osMatch13.2\(6i\)

cisconx-osMatch13.2\(7f\)

cisconx-osMatch13.2\(7k\)

cisconx-osMatch13.2\(8d\)

cisconx-osMatch13.2\(9b\)

cisconx-osMatch13.2\(9f\)

cisconx-osMatch13.2\(9h\)

cisconx-osMatch13.2\(41d\)

cisconx-osMatch14.0\(1h\)

cisconx-osMatch14.0\(2c\)

cisconx-osMatch14.0\(3c\)

cisconx-osMatch14.0\(3d\)

cisconx-osMatch14.1\(1i\)

cisconx-osMatch14.1\(1j\)

cisconx-osMatch14.1\(1k\)

cisconx-osMatch14.1\(1l\)

cisconx-osMatch14.1\(2g\)

cisconx-osMatch14.1\(2m\)

cisconx-osMatch14.1\(2o\)

cisconx-osMatch14.1\(2s\)

cisconx-osMatch14.1\(2u\)

cisconx-osMatch14.1\(2w\)

cisconx-osMatch14.1\(2x\)

cisconx-osMatch14.2\(1i\)

cisconx-osMatch14.2\(1j\)

cisconx-osMatch14.2\(1l\)

cisconx-osMatch14.2\(2e\)

cisconx-osMatch14.2\(2f\)

cisconx-osMatch14.2\(2g\)

cisconx-osMatch14.2\(3j\)

cisconx-osMatch14.2\(3l\)

cisconx-osMatch14.2\(3n\)

cisconx-osMatch14.2\(3q\)

cisconx-osMatch14.2\(4i\)

cisconx-osMatch14.2\(4k\)

cisconx-osMatch14.2\(4o\)

cisconx-osMatch14.2\(4p\)

cisconx-osMatch14.2\(5k\)

cisconx-osMatch15.0\(1k\)

cisconx-osMatch15.0\(1l\)

cisconx-osMatch15.0\(2e\)

cisconx-osMatch15.0\(2h\)

AND

cisconexus_9000vMatch-

cisconexus_92160yc-xMatch-

cisconexus_92300ycMatch-

cisconexus_92304qcMatch-

cisconexus_92348gc-xMatch-

cisconexus_9236cMatch-

cisconexus_9272qMatch-

cisconexus_93108tc-exMatch-

cisconexus_93108tc-ex-24Match-

cisconexus_93108tc-fxMatch-

cisconexus_93108tc-fx-24Match-

cisconexus_93120txMatch-

cisconexus_93128txMatch-

cisconexus_9316d-gxMatch-

cisconexus_93180lc-exMatch-

cisconexus_93180yc-exMatch-

cisconexus_93180yc-ex-24Match-

cisconexus_93180yc-fxMatch-

cisconexus_93180yc-fx-24Match-

cisconexus_93180yc-fx3Match-

cisconexus_93180yc-fx3sMatch-

cisconexus_93216tc-fx2Match-

cisconexus_93240yc-fx2Match-

cisconexus_9332cMatch-

cisconexus_9332pqMatch-

cisconexus_93360yc-fx2Match-

cisconexus_9336c-fx2Match-

cisconexus_9336c-fx2-eMatch-

cisconexus_9336pq_aci_spineMatch-

cisconexus_9348gc-fxpMatch-

cisconexus_93600cd-gxMatch-

cisconexus_9364cMatch-

cisconexus_9364c-gxMatch-

cisconexus_9372pxMatch-

cisconexus_9372px-eMatch-

cisconexus_9372txMatch-

cisconexus_9372tx-eMatch-

cisconexus_9396pxMatch-

cisconexus_9396txMatch-

cisconexus_9508Match-

CPENameOperatorVersion
cisco:nx-oscisco nx-oseq11.0\(1b\)
cisco:nx-oscisco nx-oseq11.0\(1c\)
cisco:nx-oscisco nx-oseq11.0\(1d\)
cisco:nx-oscisco nx-oseq11.0\(1e\)
cisco:nx-oscisco nx-oseq11.0\(2j\)
cisco:nx-oscisco nx-oseq11.0\(2m\)
cisco:nx-oscisco nx-oseq11.0\(3f\)
cisco:nx-oscisco nx-oseq11.0\(3i\)
cisco:nx-oscisco nx-oseq11.0\(3k\)
cisco:nx-oscisco nx-oseq11.0\(3n\)

CPE	Name	Operator	Version
cisco:nx-os	cisco nx-os	eq	11.0\(1b\)
cisco:nx-os	cisco nx-os	eq	11.0\(1c\)
cisco:nx-os	cisco nx-os	eq	11.0\(1d\)
cisco:nx-os	cisco nx-os	eq	11.0\(1e\)
cisco:nx-os	cisco nx-os	eq	11.0\(2j\)
cisco:nx-os	cisco nx-os	eq	11.0\(2m\)
cisco:nx-os	cisco nx-os	eq	11.0\(3f\)
cisco:nx-os	cisco nx-os	eq	11.0\(3i\)
cisco:nx-os	cisco nx-os	eq	11.0\(3k\)
cisco:nx-os	cisco nx-os	eq	11.0\(3n\)

Rows per page:

1-10 of 1641

CNA Affected

[
  {
    "product": "Cisco NX-OS System Software in ACI Mode ",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apic-lldap-dos-WerV9CFj

Social References

4.7 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

4.7 Medium

AI Score

Confidence

High

2.9 Low

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

24.7%

JSON

Related for CVE-2021-1231

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