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TenableCVE-2021-20138

HistoryDec 09, 2021 - 4:15 p.m.

CVE-2021-20138

2021-12-0916:15:07

CWE-78

tenable

web.nvd.nist.gov

cve-2021-20138

vulnerability

command injection

gryphon tower

router

unauthenticated

remote attack

network security

CVSS2

8.3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

8.8

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.9

Confidence

High

EPSS

0.002

Percentile

55.9%

JSON

An unauthenticated command injection vulnerability exists in multiple parameters in the Gryphon Tower router’s web interface at /cgi-bin/luci/rc. An unauthenticated remote attacker on the same network can execute commands as root on the device by sending a specially crafted malicious packet to the web interface.

Affected configurations

Nvd

Node

gryphonconnectgryphon_tower_firmwareRange≤04.0004.12

AND

gryphonconnectgryphon_towerMatch-

VendorProductVersionCPE
gryphonconnectgryphon_tower_firmware*cpe:2.3:o:gryphonconnect:gryphon_tower_firmware:*:*:*:*:*:*:*:*
gryphonconnectgryphon_tower-cpe:2.3:h:gryphonconnect:gryphon_tower:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
gryphonconnect	gryphon_tower_firmware	*	cpe:2.3:o:gryphonconnect:gryphon_tower_firmware::::::::
gryphonconnect	gryphon_tower	-	cpe:2.3:h:gryphonconnect:gryphon_tower:-:::::::*

CNA Affected

[
  {
    "product": "Gryphon Tower router",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "<= 04.0004.12 (Current)"
      }
    ]
  }
]

References

www.tenable.com/security/research/tra-2021-51

CVSS2

8.3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

8.8

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.9

Confidence

High

EPSS

0.002

Percentile

55.9%

JSON

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