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[email protected]CVE-2021-1529

HistoryOct 21, 2021 - 3:15 a.m.

CVE-2021-1529

2021-10-2103:15:06

CWE-78

[email protected]

web.nvd.nist.gov

cve-2021-1529

cisco

ios xe

sd-wan

vulnerability

cli

command execution

root privileges

nvd

6.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.8 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.2%

JSON

A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges. The vulnerability is due to insufficient input validation by the system CLI. An attacker could exploit this vulnerability by authenticating to an affected device and submitting crafted input to the system CLI. A successful exploit could allow the attacker to execute commands on the underlying operating system with root privileges.

Affected configurations

NVD

Node

ciscoios_xeRange16.12–17.0

ciscoios_xeRange17.2–17.2.3

ciscoios_xeRange17.3–17.3.4

ciscoios_xeRange17.4–17.4.2

ciscoios_xeRange17.5–17.5.1a

ciscoios_xeMatch17.6.0

AND

cisco1000_integrated_services_routerMatch-

cisco1100-4g\/6g_integrated_services_routerMatch-

cisco1100-4p_integrated_services_routerMatch-

cisco1100-8p_integrated_services_routerMatch-

cisco1100_integrated_services_routerMatch-

cisco1101-4p_integrated_services_routerMatch-

cisco1101_integrated_services_routerMatch-

cisco1109-2p_integrated_services_routerMatch-

cisco1109-4p_integrated_services_routerMatch-

cisco1109_integrated_services_routerMatch-

cisco1111x-8p_integrated_services_routerMatch-

cisco1111x_integrated_services_routerMatch-

cisco111x_integrated_services_routerMatch-

cisco1120_integrated_services_routerMatch-

cisco1160_integrated_services_routerMatch-

cisco4000_integrated_services_routerMatch-

cisco4221_integrated_services_routerMatch-

cisco4321_integrated_services_routerMatch-

cisco4331_integrated_services_routerMatch-

cisco4351_integrated_services_routerMatch-

cisco4431_integrated_services_routerMatch-

cisco4451-x_integrated_services_routerMatch-

cisco4451_integrated_services_routerMatch-

cisco4461_integrated_services_routerMatch-

ciscoasr_1000Match-

ciscoasr_1000-esp100Match-

ciscoasr_1000-xMatch-

ciscoasr_1001Match-

ciscoasr_1001-hxMatch-

ciscoasr_1001-hx_rMatch-

ciscoasr_1001-xMatch-

ciscoasr_1001-x_rMatch-

ciscoasr_1002Match-

ciscoasr_1002-hxMatch-

ciscoasr_1002-hx_rMatch-

ciscoasr_1002-xMatch-

ciscoasr_1002-x_rMatch-

ciscoasr_1004Match-

ciscoasr_1006Match-

ciscoasr_1006-xMatch-

ciscoasr_1009-xMatch-

ciscoasr_1013Match-

ciscoasr_1023Match-

ciscocatalyst_8300-1n1s-4t2xMatch-

ciscocatalyst_8300-1n1s-6tMatch-

ciscocatalyst_8300-2n2s-4t2xMatch-

ciscocatalyst_8300-2n2s-6tMatch-

ciscocatalyst_8500Match-

ciscocatalyst_8500lMatch-

ciscocatalyst_8510csrMatch-

ciscocatalyst_8510msrMatch-

ciscocatalyst_8540csrMatch-

ciscocatalyst_8540msrMatch-

ciscocsr_1000vMatch-

Node

ciscoios_xe_sd-wanRange17.2.1r≥

AND

cisco1100-4g\/6g_integrated_services_routerMatch-

cisco1100-4p_integrated_services_routerMatch-

cisco1100-8p_integrated_services_routerMatch-

cisco1100_integrated_services_routerMatch-

cisco1101-4p_integrated_services_routerMatch-

cisco1101_integrated_services_routerMatch-

cisco1109-2p_integrated_services_routerMatch-

cisco1109-4p_integrated_services_routerMatch-

cisco1109_integrated_services_routerMatch-

cisco1111x-8p_integrated_services_routerMatch-

cisco1111x_integrated_services_routerMatch-

cisco111x_integrated_services_routerMatch-

cisco1120_integrated_services_routerMatch-

cisco1160_integrated_services_routerMatch-

cisco4000_integrated_services_routerMatch-

cisco4221_integrated_services_routerMatch-

cisco4321_integrated_services_routerMatch-

cisco4331_integrated_services_routerMatch-

cisco4351_integrated_services_routerMatch-

cisco4431_integrated_services_routerMatch-

cisco4451-x_integrated_services_routerMatch-

cisco4451_integrated_services_routerMatch-

cisco4461_integrated_services_routerMatch-

ciscoasr_1000Match-

ciscoasr_1000-esp100Match-

ciscoasr_1000-xMatch-

ciscoasr_1001Match-

ciscoasr_1001-hxMatch-

ciscoasr_1001-hx_rMatch-

ciscoasr_1001-xMatch-

ciscoasr_1001-x_rMatch-

ciscoasr_1002Match-

ciscoasr_1002-hxMatch-

ciscoasr_1002-hx_rMatch-

ciscoasr_1002-xMatch-

ciscoasr_1002-x_rMatch-

ciscoasr_1002_fixed_routerMatch-

ciscoasr_1004Match-

ciscoasr_1006Match-

ciscoasr_1006-xMatch-

ciscoasr_1009-xMatch-

ciscoasr_1013Match-

ciscoasr_1023Match-

ciscocatalyst_8300-1n1s-4t2xMatch-

ciscocatalyst_8300-1n1s-6tMatch-

ciscocatalyst_8300-2n2s-4t2xMatch-

ciscocatalyst_8300-2n2s-6tMatch-

ciscocatalyst_8500Match-

ciscocatalyst_8500lMatch-

ciscocatalyst_8510csrMatch-

ciscocatalyst_8510msrMatch-

ciscocatalyst_8540csrMatch-

ciscocatalyst_8540msrMatch-

ciscocsr_1000vMatch-

CPENameOperatorVersion
cisco:ios_xecisco ios xele17.0
cisco:ios_xecisco ios xelt17.2.3
cisco:ios_xecisco ios xelt17.3.4
cisco:ios_xecisco ios xelt17.4.2
cisco:ios_xecisco ios xelt17.5.1a
cisco:ios_xecisco ios xeeq17.6.0

CPE	Name	Operator	Version
cisco:ios_xe	cisco ios xe	le	17.0
cisco:ios_xe	cisco ios xe	lt	17.2.3
cisco:ios_xe	cisco ios xe	lt	17.3.4
cisco:ios_xe	cisco ios xe	lt	17.4.2
cisco:ios_xe	cisco ios xe	lt	17.5.1a
cisco:ios_xe	cisco ios xe	eq	17.6.0

CNA Affected

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

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sd-wan-rhpbE34A

6.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.8 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.2%

JSON

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