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TenableCVE-2021-20091

HistoryApr 29, 2021 - 3:15 p.m.

CVE-2021-20091

2021-04-2915:15:10

tenable

web.nvd.nist.gov

cve-2021-20091

buffalo

wsr-2533dhpl2

wsr-2533dhp3

firmware vulnerability

remote code execution

nvd

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

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.3

Confidence

High

EPSS

0.009

Percentile

83.1%

JSON

The web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 do not properly sanitize user input. An authenticated remote attacker could leverage this vulnerability to alter device configuration, potentially gaining remote code execution.

Affected configurations

Nvd

Node

buffalowsr-2533dhpl2-bkMatch-

AND

buffalowsr-2533dhpl2-bk_firmwareRange≤1.02

Node

buffalowsr-2533dhp3-bkMatch-

AND

buffalowsr-2533dhp3-bk_firmwareRange≤1.24

VendorProductVersionCPE
buffalowsr-2533dhpl2-bk-cpe:2.3:h:buffalo:wsr-2533dhpl2-bk:-:*:*:*:*:*:*:*
buffalowsr-2533dhpl2-bk_firmware*cpe:2.3:o:buffalo:wsr-2533dhpl2-bk_firmware:*:*:*:*:*:*:*:*
buffalowsr-2533dhp3-bk-cpe:2.3:h:buffalo:wsr-2533dhp3-bk:-:*:*:*:*:*:*:*
buffalowsr-2533dhp3-bk_firmware*cpe:2.3:o:buffalo:wsr-2533dhp3-bk_firmware:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
buffalo	wsr-2533dhpl2-bk	-	cpe:2.3:h:buffalo:wsr-2533dhpl2-bk:-:::::::*
buffalo	wsr-2533dhpl2-bk_firmware	*	cpe:2.3:o:buffalo:wsr-2533dhpl2-bk_firmware::::::::
buffalo	wsr-2533dhp3-bk	-	cpe:2.3:h:buffalo:wsr-2533dhp3-bk:-:::::::*
buffalo	wsr-2533dhp3-bk_firmware	*	cpe:2.3:o:buffalo:wsr-2533dhp3-bk_firmware::::::::

CNA Affected

[
  {
    "product": "Buffalo WSR-2533DHPL2, Buffalo WSR-2533DHP3",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "WSR-2533DHPL2 <=1.02, WSR-2533DHP3 <= 1.24"
      }
    ]
  }
]