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cveTenableCVE-2021-20145
HistoryDec 09, 2021 - 4:15 p.m.

CVE-2021-20145

2021-12-0916:15:08
CWE-287
tenable
web.nvd.nist.gov
39
cve-2021-20145
gryphon
tower routers
unprotected openvpn
configuration file
vpn network
lan interfaces
attack

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.003

Percentile

68.6%

Gryphon Tower routers contain an unprotected openvpn configuration file which can grant attackers access to the Gryphon homebound VPN network which exposes the LAN interfaces of other users’ devices connected to the same service. An attacker could leverage this to make configuration changes to, or otherwise attack victims’ devices as though they were on an adjacent network.

Affected configurations

Nvd
Node
gryphonconnectgryphon_tower_firmwareRange04.0004.12
AND
gryphonconnectgryphon_towerMatch-
VendorProductVersionCPE
gryphonconnectgryphon_tower_firmware*cpe:2.3:o:gryphonconnect:gryphon_tower_firmware:*:*:*:*:*:*:*:*
gryphonconnectgryphon_tower-cpe:2.3:h:gryphonconnect:gryphon_tower:-:*:*:*:*:*:*:*

CNA Affected

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

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

EPSS

0.003

Percentile

68.6%

Related for CVE-2021-20145