Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-33537

Severity CVSS v4.0:
Pending analysis
Type:
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Publication date:
25/06/2021
Last modified:
27/07/2021

Description

In Weidmueller Industrial WLAN devices in multiple versions an exploitable remote code execution vulnerability exists in the iw_webs configuration parsing functionality. A specially crafted user name entry can cause an overflow of an error message buffer, resulting in remote code execution. An attacker can send commands while authenticated as a low privilege user to trigger this vulnerability.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
8.80
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:S/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): Single
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
6.50
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:weidmueller:ie-wl-bl-ap-cl-eu_firmware:*:*:*:*:*:*:*:* 1.16.18 (including)
cpe:2.3:h:weidmueller:ie-wl-bl-ap-cl-eu:-:*:*:*:*:*:*:*
cpe:2.3:o:weidmueller:ie-wlt-bl-ap-cl-eu_firmware:*:*:*:*:*:*:*:* 1.16.18 (including)
cpe:2.3:h:weidmueller:ie-wlt-bl-ap-cl-eu:-:*:*:*:*:*:*:*
cpe:2.3:o:weidmueller:ie-wl-bl-ap-cl-us_firmware:*:*:*:*:*:*:*:* 1.16.18 (including)
cpe:2.3:h:weidmueller:ie-wl-bl-ap-cl-us:-:*:*:*:*:*:*:*
cpe:2.3:o:weidmueller:ie-wlt-bl-ap-cl-us_firmware:*:*:*:*:*:*:*:* 1.16.18 (including)
cpe:2.3:h:weidmueller:ie-wlt-bl-ap-cl-us:-:*:*:*:*:*:*:*
cpe:2.3:o:weidmueller:ie-wl-vl-ap-br-cl-eu_firmware:*:*:*:*:*:*:*:* 1.16.18 (including)
cpe:2.3:h:weidmueller:ie-wl-vl-ap-br-cl-eu:-:*:*:*:*:*:*:*
cpe:2.3:o:weidmueller:ie-wlt-vl-ap-br-cl-eu_firmware:*:*:*:*:*:*:*:* 1.16.18 (including)
cpe:2.3:h:weidmueller:ie-wlt-vl-ap-br-cl-eu:-:*:*:*:*:*:*:*
cpe:2.3:o:weidmueller:ie-wl-vl-ap-br-cl-us_firmware:*:*:*:*:*:*:*:* 1.16.18 (including)
cpe:2.3:h:weidmueller:ie-wl-vl-ap-br-cl-us:-:*:*:*:*:*:*:*
cpe:2.3:o:weidmueller:ie-wlt-vl-ap-br-cl-us_firmware:*:*:*:*:*:*:*:* 1.16.18 (including)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools