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TalosCVE-2021-21895

HistoryDec 22, 2021 - 7:15 p.m.

CVE-2021-21895

2021-12-2219:15:09

CWE-22

talos

web.nvd.nist.gov

cve-2021-21895

directory traversal

lantronix

premierwave 2050

web manager

fstftp

vulnerability

http request

file overwrite

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

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

Confidence

High

EPSS

0.001

Percentile

41.7%

JSON

A directory traversal vulnerability exists in the Web Manager FsTFtp functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to FsTFtp file overwrite. An attacker can make an authenticated HTTP request to trigger this vulnerability.

Affected configurations

Nvd

Vulners

Node

lantronixpremierwave_2050_firmwareMatch8.9.0.0r4

AND

lantronixpremierwave_2050Match-

VendorProductVersionCPE
lantronixpremierwave_2050_firmware8.9.0.0cpe:2.3:o:lantronix:premierwave_2050_firmware:8.9.0.0:r4:*:*:*:*:*:*
lantronixpremierwave_2050-cpe:2.3:h:lantronix:premierwave_2050:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
lantronix	premierwave_2050_firmware	8.9.0.0	cpe:2.3:o:lantronix:premierwave_2050_firmware:8.9.0.0:r4::::::
lantronix	premierwave_2050	-	cpe:2.3:h:lantronix:premierwave_2050:-:::::::*

CNA Affected

[
  {
    "product": "Lantronix",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU)"
      }
    ]
  }
]

References

talosintelligence.com/vulnerability_reports/TALOS-2021-1337

Social References

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

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

Confidence

High

EPSS

0.001

Percentile

41.7%

JSON

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