CVE-2021-1361

CVSS V2 High 9.4 CVSS V3 Critical 9.1
Description
A vulnerability in the implementation of an internal file management service for Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches in standalone NX-OS mode that are running Cisco NX-OS Software could allow an unauthenticated, remote attacker to create, delete, or overwrite arbitrary files with root privileges on the device. This vulnerability exists because TCP port 9075 is incorrectly configured to listen and respond to external connection requests. An attacker could exploit this vulnerability by sending crafted TCP packets to an IP address that is configured on a local interface on TCP port 9075. A successful exploit could allow the attacker to create, delete, or overwrite arbitrary files, including sensitive files that are related to the device configuration. For example, the attacker could add a user account without the device administrator knowing.
Overview
  • CVE ID
  • CVE-2021-1361
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-02-24T20:15:13
  • Last Modified Date
  • 2021-03-05T18:10:18
Weakness Enumerations
CWE URL
CWE-552 http://cwe.mitre.org/data/definitions/552.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:cisco:nx-os:9.3\(5\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:nx-os:9.3\(6\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:nexus_3000:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3100:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3100-z:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3100v:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3200:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3400:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3500:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3600:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9000v:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_92160yc-x:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_92300yc:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_92304qc:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_92348gc-x:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9236c:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9272q:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93108tc-ex:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93108tc-ex-24:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93108tc-fx:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93108tc-fx-24:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93128tx:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9316d-gx:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93180lc-ex:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93180yc-ex:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93180yc-ex-24:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93180yc-fx:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93180yc-fx-24:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93180yc-fx3:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93180yc-fx3s:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93216tc-fx2:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93240yc-fx2:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9332c:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93360yc-fx2:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9336c-fx2:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9336c-fx2-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9336pq_aci_spine:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9348gc-fxp:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93600cd-gx:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9364c:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9364c-gx:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9372px:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9372px-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9372tx:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9372tx-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9396px:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9396tx:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9508:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 9.4
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 9.2
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 9.1
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.2
References
Reference URL Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-3000-9000-fileaction-QtLzDRy2 Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-1361
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1361
History
Created Old Value New Value Data Type Notes
2022-05-10 07:20:53 Added to TrackCVE
2022-12-05 22:43:50 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-05 22:43:50 2021-02-24T20:15Z 2021-02-24T20:15:13 CVE Published Date updated
2022-12-05 22:43:50 2021-03-05T18:10:18 CVE Modified Date updated
2022-12-05 22:43:50 Analyzed Vulnerability Status updated