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[email protected]CVE-2021-33536

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

CVE-2021-33536

2021-06-2519:15:09

CWE-191

[email protected]

web.nvd.nist.gov

cve-2021-33536

weidmueller industrial wlan

denial of service

integer underflow

memory access

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

42.6%

JSON

In Weidmueller Industrial WLAN devices in multiple versions an exploitable denial-of-service vulnerability exists in ServiceAgent functionality. A specially crafted packet can cause an integer underflow, triggering a large memcpy that will access unmapped or out-of-bounds memory. An attacker can send this packet while unauthenticated 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≤1.11.10

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

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

42.6%

JSON

Related for CVE-2021-33536

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