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

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2021-40866

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
13/09/2021
Last modified:
08/08/2023

Description

Certain NETGEAR smart switches are affected by a remote admin password change by an unauthenticated attacker via the (disabled by default) /sqfs/bin/sccd daemon, which fails to check authentication when the authentication TLV is missing from a received NSDP packet. This affects GC108P before 1.0.8.2, GC108PP before 1.0.8.2, GS108Tv3 before 7.0.7.2, GS110TPP before 7.0.7.2, GS110TPv3 before 7.0.7.2, GS110TUP before 1.0.5.3, GS308T before 1.0.3.2, GS310TP before 1.0.3.2, GS710TUP before 1.0.5.3, GS716TP before 1.0.4.2, GS716TPP before 1.0.4.2, GS724TPP before 2.0.6.3, GS724TPv2 before 2.0.6.3, GS728TPPv2 before 6.0.8.2, GS728TPv2 before 6.0.8.2, GS750E before 1.0.1.10, GS752TPP before 6.0.8.2, GS752TPv2 before 6.0.8.2, MS510TXM before 1.0.4.2, and MS510TXUP before 1.0.4.2.

Impact

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

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
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:A/AC:M/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.40 MEDIUM
Vector: AV:A/AC:M/Au:N/C:P/I:P/A:P

Attack Vector (AV): Adjacent
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
5.40
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:netgear:gc108p_firmware:*:*:*:*:*:*:*:* 1.0.8.2 (excluding)
cpe:2.3:h:netgear:gc108p:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:gc108pp_firmware:*:*:*:*:*:*:*:* 1.0.8.2 (excluding)
cpe:2.3:h:netgear:gc108pp:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:gs108t_firmware:*:*:*:*:*:*:*:* 7.0.7.2 (excluding)
cpe:2.3:h:netgear:gs108tv3:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:gs110tpp_firmware:*:*:*:*:*:*:*:* 7.0.7.2 (excluding)
cpe:2.3:h:netgear:gs110tpp:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:gs110tp_firmware:*:*:*:*:*:*:*:* 7.0.7.2 (excluding)
cpe:2.3:h:netgear:gs110tp:v3:*:*:*:*:*:*:*
cpe:2.3:o:netgear:gs110tup_firmware:*:*:*:*:*:*:*:* 1.0.5.3 (excluding)
cpe:2.3:h:netgear:gs110tup:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:gs308t_firmware:*:*:*:*:*:*:*:* 1.0.3.2 (excluding)
cpe:2.3:h:netgear:gs308t:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:gs310tp_firmware:*:*:*:*:*:*:*:* 1.0.3.2 (excluding)

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


References to Advisories, Solutions, and Tools