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CiscoCVE-2021-34722

HistorySep 09, 2021 - 5:15 a.m.

CVE-2021-34722

2021-09-0905:15:11

CWE-78

cisco

web.nvd.nist.gov

cisco

ios xr

software

cli

vulnerabilities

cve-2021-34722

nvd

security advisory

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

Confidence

High

EPSS

Percentile

5.2%

JSON

Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to gain access to the underlying root shell of an affected device and execute arbitrary commands with root privileges. For more information about these vulnerabilities, see the Details section of this advisory.

Affected configurations

Nvd

Node

ciscoios_xrRange7.1.1–7.3.2

ciscoios_xrRange7.4.0–7.4.1

AND

ciscoasr_9000v-v2Match-

ciscoasr_9001Match-

ciscoasr_9006Match-

ciscoasr_9010Match-

ciscoasr_9901Match-

ciscoasr_9902Match-

ciscoasr_9903Match-

ciscoasr_9904Match-

ciscoasr_9906Match-

ciscoasr_9910Match-

ciscoasr_9912Match-

ciscoasr_9922Match-

Node

ciscoios_xrRange7.1.1–7.3.2

ciscoios_xrRange7.4.0–7.4.1

AND

ciscoios_xrvMatch-

ciscoios_xrv_9000Match-

Node

ciscoios_xrRange7.1.1–7.3.2

ciscoios_xrRange7.4.0–7.4.1

AND

cisconcs_520Match-

cisconcs_540Match-

cisconcs_540_fronthaulMatch-

cisconcs_560-4Match-

cisconcs_560-7Match-

Node

ciscoios_xrRange7.1.1–7.3.2

ciscoios_xrRange7.4.0–7.4.1

AND

cisconcs_5001Match-

cisconcs_5002Match-

cisconcs_5011Match-

Node

ciscoios_xrRange7.1.1–7.3.2

ciscoios_xrRange7.4.0–7.4.1

AND

cisconcs_5501Match-

cisconcs_5501-seMatch-

cisconcs_5502Match-

cisconcs_5502-seMatch-

cisconcs_5508Match-

cisconcs_5516Match-

Node

ciscoios_xrRange7.1.1–7.3.2

ciscoios_xrRange7.4.0–7.4.1

AND

cisconcs_6000Match-

cisconcs_6008Match-

Node

ciscoios_xrRange7.1.1–7.3.2

ciscoios_xrRange7.4.0–7.4.1

AND

cisconcs_1001Match-

cisconcs_1002Match-

cisconcs_1004Match-

Node

ciscoios_xrRange7.1.1–7.3.2

ciscoios_xrRange7.4.0–7.4.1

AND

cisco8101-32fhMatch-

cisco8101-32hMatch-

cisco8102-64hMatch-

cisco8201Match-

cisco8201-32fhMatch-

cisco8202Match-

cisco8804Match-

cisco8808Match-

cisco8812Match-

cisco8818Match-

VendorProductVersionCPE
ciscoios_xr*cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
ciscoasr_9000v-v2-cpe:2.3:h:cisco:asr_9000v-v2:-:*:*:*:*:*:*:*
ciscoasr_9001-cpe:2.3:h:cisco:asr_9001:-:*:*:*:*:*:*:*
ciscoasr_9006-cpe:2.3:h:cisco:asr_9006:-:*:*:*:*:*:*:*
ciscoasr_9010-cpe:2.3:h:cisco:asr_9010:-:*:*:*:*:*:*:*
ciscoasr_9901-cpe:2.3:h:cisco:asr_9901:-:*:*:*:*:*:*:*
ciscoasr_9902-cpe:2.3:h:cisco:asr_9902:-:*:*:*:*:*:*:*
ciscoasr_9903-cpe:2.3:h:cisco:asr_9903:-:*:*:*:*:*:*:*
ciscoasr_9904-cpe:2.3:h:cisco:asr_9904:-:*:*:*:*:*:*:*
ciscoasr_9906-cpe:2.3:h:cisco:asr_9906:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cisco	ios_xr	*	cpe:2.3:o:cisco:ios_xr::::::::
cisco	asr_9000v-v2	-	cpe:2.3:h:cisco:asr_9000v-v2:-:::::::*
cisco	asr_9001	-	cpe:2.3:h:cisco:asr_9001:-:::::::*
cisco	asr_9006	-	cpe:2.3:h:cisco:asr_9006:-:::::::*
cisco	asr_9010	-	cpe:2.3:h:cisco:asr_9010:-:::::::*
cisco	asr_9901	-	cpe:2.3:h:cisco:asr_9901:-:::::::*
cisco	asr_9902	-	cpe:2.3:h:cisco:asr_9902:-:::::::*
cisco	asr_9903	-	cpe:2.3:h:cisco:asr_9903:-:::::::*
cisco	asr_9904	-	cpe:2.3:h:cisco:asr_9904:-:::::::*
cisco	asr_9906	-	cpe:2.3:h:cisco:asr_9906:-:::::::*

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CNA Affected

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

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-cmd-inj-wbZKvPxc

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

6.7

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

Confidence

High

EPSS

Percentile

5.2%

JSON

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