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CiscoCVE-2021-1435

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

CVE-2021-1435

2021-03-2420:15:14

CWE-22

cisco

web.nvd.nist.gov

In Wild

cisco

ios xe

software

vulnerability

remote code execution

root user

nvd

cve-2021-1435

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.2

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.4

Confidence

High

EPSS

0.002

Percentile

53.5%

JSON

A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to inject arbitrary commands that can be executed as the root user. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted request to the web UI of an affected device with arbitrary commands injected into a portion of the request. A successful exploit could allow the attacker to execute arbitrary commands as the root user.

Affected configurations

Nvd

Node

ciscoios_xeMatch16.9.1

ciscoios_xeMatch16.9.1a

ciscoios_xeMatch16.9.1b

ciscoios_xeMatch16.9.1c

ciscoios_xeMatch16.9.1d

ciscoios_xeMatch16.9.1s

ciscoios_xeMatch16.9.2

ciscoios_xeMatch16.9.2a

ciscoios_xeMatch16.9.2s

ciscoios_xeMatch16.9.3

ciscoios_xeMatch16.9.3a

ciscoios_xeMatch16.9.3h

ciscoios_xeMatch16.9.3s

ciscoios_xeMatch16.9.4

ciscoios_xeMatch16.9.4c

ciscoios_xeMatch16.9.5

ciscoios_xeMatch16.9.5f

ciscoios_xeMatch16.9.6

ciscoios_xeMatch16.10.1

ciscoios_xeMatch16.10.1a

ciscoios_xeMatch16.10.1b

ciscoios_xeMatch16.10.1c

ciscoios_xeMatch16.10.1d

ciscoios_xeMatch16.10.1e

ciscoios_xeMatch16.10.1f

ciscoios_xeMatch16.10.1g

ciscoios_xeMatch16.10.1s

ciscoios_xeMatch16.10.2

ciscoios_xeMatch16.10.3

ciscoios_xeMatch16.11.1

ciscoios_xeMatch16.11.1a

ciscoios_xeMatch16.11.1b

ciscoios_xeMatch16.11.1c

ciscoios_xeMatch16.11.1s

ciscoios_xeMatch16.11.2

ciscoios_xeMatch17.2.1v

VendorProductVersionCPE
ciscoios_xe16.9.1cpe:2.3:o:cisco:ios_xe:16.9.1:*:*:*:*:*:*:*
ciscoios_xe16.9.1acpe:2.3:o:cisco:ios_xe:16.9.1a:*:*:*:*:*:*:*
ciscoios_xe16.9.1bcpe:2.3:o:cisco:ios_xe:16.9.1b:*:*:*:*:*:*:*
ciscoios_xe16.9.1ccpe:2.3:o:cisco:ios_xe:16.9.1c:*:*:*:*:*:*:*
ciscoios_xe16.9.1dcpe:2.3:o:cisco:ios_xe:16.9.1d:*:*:*:*:*:*:*
ciscoios_xe16.9.1scpe:2.3:o:cisco:ios_xe:16.9.1s:*:*:*:*:*:*:*
ciscoios_xe16.9.2cpe:2.3:o:cisco:ios_xe:16.9.2:*:*:*:*:*:*:*
ciscoios_xe16.9.2acpe:2.3:o:cisco:ios_xe:16.9.2a:*:*:*:*:*:*:*
ciscoios_xe16.9.2scpe:2.3:o:cisco:ios_xe:16.9.2s:*:*:*:*:*:*:*
ciscoios_xe16.9.3cpe:2.3:o:cisco:ios_xe:16.9.3:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cisco	ios_xe	16.9.1	cpe:2.3:o:cisco:ios_xe:16.9.1:::::::*
cisco	ios_xe	16.9.1a	cpe:2.3:o:cisco:ios_xe:16.9.1a:::::::*
cisco	ios_xe	16.9.1b	cpe:2.3:o:cisco:ios_xe:16.9.1b:::::::*
cisco	ios_xe	16.9.1c	cpe:2.3:o:cisco:ios_xe:16.9.1c:::::::*
cisco	ios_xe	16.9.1d	cpe:2.3:o:cisco:ios_xe:16.9.1d:::::::*
cisco	ios_xe	16.9.1s	cpe:2.3:o:cisco:ios_xe:16.9.1s:::::::*
cisco	ios_xe	16.9.2	cpe:2.3:o:cisco:ios_xe:16.9.2:::::::*
cisco	ios_xe	16.9.2a	cpe:2.3:o:cisco:ios_xe:16.9.2a:::::::*
cisco	ios_xe	16.9.2s	cpe:2.3:o:cisco:ios_xe:16.9.2s:::::::*
cisco	ios_xe	16.9.3	cpe:2.3:o:cisco:ios_xe:16.9.3:::::::*

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CNA Affected

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