Vulnerability Monitor

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CVE-2021-1367


A vulnerability in the Protocol Independent Multicast (PIM) feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted PIM packet to an affected device. A successful exploit could allow the attacker to cause a traffic loop, resulting in a DoS condition.


Published

2021-02-24T20:15:13.363

Last Modified

2024-11-21T05:44:11.587

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.3 (MEDIUM)

CVSSv2 Vector

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

  • Access Vector: ADJACENT_NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

5.5

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-20

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco nx-os 9.3\(5\) Yes
Hardware cisco nexus_9000v_switch - No
Hardware cisco nexus_92160yc-x_switch - No
Hardware cisco nexus_92300yc_switch - No
Hardware cisco nexus_92304qc_switch - No
Hardware cisco nexus_92348gc-x_switch - No
Hardware cisco nexus_9236c_switch - No
Hardware cisco nexus_9272q_switch - No
Hardware cisco nexus_93108tc-ex-24_switch - No
Hardware cisco nexus_93108tc-ex_switch - No
Hardware cisco nexus_93108tc-fx-24 - No
Hardware cisco nexus_93108tc-fx_switch - No
Hardware cisco nexus_93120tx - No
Hardware cisco nexus_93128tx - No
Hardware cisco nexus_9316d-gx - No
Hardware cisco nexus_93180lc-ex - No
Hardware cisco nexus_93180yc-ex - No
Hardware cisco nexus_93180yc-ex-24 - No
Hardware cisco nexus_93180yc-fx - No
Hardware cisco nexus_93180yc-fx-24 - No
Hardware cisco nexus_93180yc-fx3 - No
Hardware cisco nexus_93180yc-fx3s - No
Hardware cisco nexus_93216tc-fx2 - No
Hardware cisco nexus_93240yc-fx2 - No
Hardware cisco nexus_9332c - No
Hardware cisco nexus_9332pq - No
Hardware cisco nexus_93360yc-fx2 - No
Hardware cisco nexus_9336c-fx2 - No
Hardware cisco nexus_9336c-fx2-e - No
Hardware cisco nexus_9336pq - No
Hardware cisco nexus_9348gc-fxp - No
Hardware cisco nexus_93600cd-gx - No
Hardware cisco nexus_9364c - No
Hardware cisco nexus_9364c-gx - No
Hardware cisco nexus_9372px - No
Hardware cisco nexus_9372px-e - No
Hardware cisco nexus_9372tx - No
Hardware cisco nexus_9372tx-e - No
Hardware cisco nexus_9396px - No
Hardware cisco nexus_9396tx - No
Hardware cisco nexus_9504 - No
Hardware cisco nexus_9508 - No
Hardware cisco nexus_9516 - No

References