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[email protected]CVE-2021-33539

HistoryJun 25, 2021 - 7:15 p.m.

CVE-2021-33539

2021-06-2519:15:09

CWE-287

[email protected]

web.nvd.nist.gov

weidmueller

industrial wlan

authentication bypass

cve-2021-33539

nvd

security vulnerability

6.5 Medium

CVSS2

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

7.2 High

CVSS3

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

7 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

42.9%

JSON

In Weidmueller Industrial WLAN devices in multiple versions an exploitable authentication bypass vulnerability exists in the hostname processing. A specially configured device hostname can cause the device to interpret selected remote traffic as local traffic, resulting in a bypass of web authentication. An attacker can send authenticated SNMP requests to trigger this vulnerability.

Affected configurations

NVD

Node

weidmuellerie-wl-bl-ap-cl-eu_firmwareRange≤1.16.18

AND

weidmuellerie-wl-bl-ap-cl-euMatch-

Node

weidmuellerie-wlt-bl-ap-cl-eu_firmwareRange≤1.16.18

AND

weidmuellerie-wlt-bl-ap-cl-euMatch-

Node

weidmuellerie-wl-bl-ap-cl-us_firmwareRange≤1.16.18

AND

weidmuellerie-wl-bl-ap-cl-usMatch-

Node

weidmuellerie-wlt-bl-ap-cl-us_firmwareRange≤1.16.18

AND

weidmuellerie-wlt-bl-ap-cl-usMatch-

Node

weidmuellerie-wl-vl-ap-br-cl-eu_firmwareRange≤1.16.18

AND

weidmuellerie-wl-vl-ap-br-cl-euMatch-

Node

weidmuellerie-wlt-vl-ap-br-cl-eu_firmwareRange≤1.16.18

AND

weidmuellerie-wlt-vl-ap-br-cl-euMatch-

Node

weidmuellerie-wl-vl-ap-br-cl-us_firmwareRange≤1.16.18

AND

weidmuellerie-wl-vl-ap-br-cl-usMatch-

Node

weidmuellerie-wlt-vl-ap-br-cl-us_firmwareRange≤1.16.18

AND

weidmuellerie-wlt-vl-ap-br-cl-usMatch-

Node

weidmuellerie-wl-bl-ap-cl-eu_firmwareRange≤1.11.10

AND

weidmuellerie-wl-bl-ap-cl-euMatch-

Node

weidmuellerie-wlt-bl-ap-cl-eu_firmwareRange≤v1.11.10

AND

weidmuellerie-wlt-bl-ap-cl-euMatch-

Node

weidmuellerie-wl-bl-ap-cl-us_firmwareRange≤1.11.10

AND

weidmuellerie-wl-bl-ap-cl-usMatch-

Node

weidmuellerie-wlt-bl-ap-cl-us_firmwareRange≤1.11.10

AND

weidmuellerie-wlt-bl-ap-cl-usMatch-

Node

weidmuellerie-wl-vl-ap-br-cl-eu_firmwareRange≤1.11.10

AND

weidmuellerie-wl-vl-ap-br-cl-euMatch-

Node

weidmuellerie-wlt-vl-ap-br-cl-eu_firmwareRange≤1.11.10

AND

weidmuellerie-wlt-vl-ap-br-cl-euMatch-

Node

weidmuellerie-wl-vl-ap-br-cl-us_firmwareRange≤1.11.10

AND

weidmuellerie-wl-vl-ap-br-cl-usMatch-

Node

weidmuellerie-wlt-vl-ap-br-cl-us_firmwareRange≤1.11.10

AND

weidmuellerie-wlt-vl-ap-br-cl-usMatch-

CPENameOperatorVersion
weidmueller:ie-wl-bl-ap-cl-eu_firmwareweidmueller ie-wl-bl-ap-cl-eu firmwarele1.16.18

CPE	Name	Operator	Version
weidmueller:ie-wl-bl-ap-cl-eu_firmware	weidmueller ie-wl-bl-ap-cl-eu firmware	le	1.16.18

CNA Affected

[
  {
    "product": "IE-WL(T)-BL-AP-CL-XX",
    "vendor": "Weidmüller",
    "versions": [
      {
        "lessThanOrEqual": "V1.16.18 (Build 18081617)",
        "status": "affected",
        "version": "IE-WL-BL-AP-CL-EU (2536600000)",
        "versionType": "custom"
      },
      {
        "lessThanOrEqual": "V1.16.18 (Build 18081617)",
        "status": "affected",
        "version": "IE-WLT-BL-AP-CL-EU (2536650000)",
        "versionType": "custom"
      },
      {
        "lessThanOrEqual": "V1.16.18 (Build 18081617)",
        "status": "affected",
        "version": "IE-WL-BL-AP-CL-US (2536660000)",
        "versionType": "custom"
      },
      {
        "lessThanOrEqual": "V1.16.18 (Build 18081617)",
        "status": "affected",
        "version": "IE-WLT-BL-AP-CL-US (2536670000)",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "IE-WL(T)-VL-AP-CL-XX",
    "vendor": "Weidmüller",
    "versions": [
      {
        "lessThanOrEqual": "V1.11.10 (Build 18122616)",
        "status": "affected",
        "version": "IE-WL-VL-AP-BR-CL-EU (2536680000)",
        "versionType": "custom"
      },
      {
        "lessThanOrEqual": "V1.11.10 (Build 18122616)",
        "status": "affected",
        "version": "IE-WLT-VL-AP-BR-CL-EU (2536690000)",
        "versionType": "custom"
      },
      {
        "lessThanOrEqual": "V1.11.10 (Build 18122616)",
        "status": "affected",
        "version": "IE-WL-VL-AP-BR-CL-US (2536700000)",
        "versionType": "custom"
      },
      {
        "lessThanOrEqual": "V1.11.10 (Build 18122616)",
        "status": "affected",
        "version": "IE-WLT-VL-AP-BR-CL-US (2536710000)",
        "versionType": "custom"
      }
    ]
  }
]

References

cert.vde.com/en-us/advisories/vde-2021-026

Social References

6.5 Medium

CVSS2

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

7.2 High

CVSS3

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

7 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

42.9%

JSON

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