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CiscoCVE-2021-1373

HistoryMar 24, 2021 - 9:15 p.m.

CVE-2021-1373

2021-03-2421:15:11

CWE-126

cisco

web.nvd.nist.gov

cve-2021-1373

vulnerability

cisco

ios xe

wireless controller software

capwap

denial of service

dos

nvd

CVSS2

7.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

8.4

Confidence

High

EPSS

0.002

Percentile

52.7%

JSON

A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Wireless Controller Software for the Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition of an affected device. The vulnerability is due to insufficient validation of CAPWAP packets. An attacker could exploit this vulnerability by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition.

Affected configurations

Nvd

Node

ciscoios_xeMatch16.10.1

ciscoios_xeMatch16.10.1e

ciscoios_xeMatch16.10.1s

ciscoios_xeMatch16.11.1

ciscoios_xeMatch16.11.1a

ciscoios_xeMatch16.11.1b

ciscoios_xeMatch16.11.1c

ciscoios_xeMatch16.11.2

ciscoios_xeMatch16.12.1

ciscoios_xeMatch16.12.1s

ciscoios_xeMatch16.12.1t

ciscoios_xeMatch16.12.2s

ciscoios_xeMatch16.12.2t

ciscoios_xeMatch16.12.3

ciscoios_xeMatch16.12.3s

ciscoios_xeMatch16.12.4

ciscoios_xeMatch16.12.4a

ciscoios_xeMatch17.1.1

ciscoios_xeMatch17.1.1s

ciscoios_xeMatch17.1.1t

ciscoios_xeMatch17.1.2

ciscoios_xeMatch17.2.1

ciscoios_xeMatch17.2.1a

ciscoios_xeMatch17.2.3

ciscoios_xeMatch17.3.1

AND

ciscocatalyst_9300Match-

ciscocatalyst_9400Match-

ciscocatalyst_9500Match-

ciscocatalyst_9800-40Match-

ciscocatalyst_9800-80Match-

ciscocatalyst_9800-clMatch-

ciscocatalyst_9800-lMatch-

VendorProductVersionCPE
ciscoios_xe16.10.1cpe:2.3:o:cisco:ios_xe:16.10.1:*:*:*:*:*:*:*
ciscoios_xe16.10.1ecpe:2.3:o:cisco:ios_xe:16.10.1e:*:*:*:*:*:*:*
ciscoios_xe16.10.1scpe:2.3:o:cisco:ios_xe:16.10.1s:*:*:*:*:*:*:*
ciscoios_xe16.11.1cpe:2.3:o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:*
ciscoios_xe16.11.1acpe:2.3:o:cisco:ios_xe:16.11.1a:*:*:*:*:*:*:*
ciscoios_xe16.11.1bcpe:2.3:o:cisco:ios_xe:16.11.1b:*:*:*:*:*:*:*
ciscoios_xe16.11.1ccpe:2.3:o:cisco:ios_xe:16.11.1c:*:*:*:*:*:*:*
ciscoios_xe16.11.2cpe:2.3:o:cisco:ios_xe:16.11.2:*:*:*:*:*:*:*
ciscoios_xe16.12.1cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:*
ciscoios_xe16.12.1scpe:2.3:o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cisco	ios_xe	16.10.1	cpe:2.3:o:cisco:ios_xe:16.10.1:::::::*
cisco	ios_xe	16.10.1e	cpe:2.3:o:cisco:ios_xe:16.10.1e:::::::*
cisco	ios_xe	16.10.1s	cpe:2.3:o:cisco:ios_xe:16.10.1s:::::::*
cisco	ios_xe	16.11.1	cpe:2.3:o:cisco:ios_xe:16.11.1:::::::*
cisco	ios_xe	16.11.1a	cpe:2.3:o:cisco:ios_xe:16.11.1a:::::::*
cisco	ios_xe	16.11.1b	cpe:2.3:o:cisco:ios_xe:16.11.1b:::::::*
cisco	ios_xe	16.11.1c	cpe:2.3:o:cisco:ios_xe:16.11.1c:::::::*
cisco	ios_xe	16.11.2	cpe:2.3:o:cisco:ios_xe:16.11.2:::::::*
cisco	ios_xe	16.12.1	cpe:2.3:o:cisco:ios_xe:16.12.1:::::::*
cisco	ios_xe	16.12.1s	cpe:2.3:o:cisco:ios_xe:16.12.1s:::::::*

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CNA Affected

[
  {
    "product": "Cisco IOS XE Software",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-capwap-dos-2OA3JgKS

CVSS2

7.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

8.4

Confidence

High

EPSS

0.002

Percentile

52.7%

JSON

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