Vulnerability CVE-2021-45558

Vulnerability Name:

CCN-210216

Published:

2021-09-26

Updated:

2021-09-26

Summary:

Multiple NETGEAR Routers and WiFi Systems could allow a remote authenticated attacker to execute arbitrary commands on the system, caused by a command injection vulnerability. By sending a specially crafted request, an attacker could exploit this vulnerability to execute arbitrary commands on the system.

CVSS v3 Severity:

8.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H)
7.3 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Adjacent Attack Complexity (AC): Low Privileges Required (PR): High User Interaction (UI): None
Scope:	Scope (S): Changed
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

7.7 High (CCN CVSS v2 Vector: AV:A/AC:L/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Adjacent_Network Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Consequences:

Gain Access

References:

Source: XF
Type: UNKNOWN
netgear-psv20200053-cmd-exec(210216)

Source: CCN
Type: NETGEAR Security Advisory: PSV-2020-0053
Security Advisory for Post-Authentication Command Injection on Some WiFi Systems

Vulnerable Configuration:

Configuration CCN 1:

cpe:/h:netgear:rbk752:-:*:*:*:*:*:*:*

OR cpe:/h:netgear:rbr750:-:*:*:*:*:*:*:*

OR cpe:/h:netgear:rbk852:-:*:*:*:*:*:*:*

OR cpe:/h:netgear:rbr850:-:*:*:*:*:*:*:*

OR cpe:/h:netgear:rbs850:-:*:*:*:*:*:*:*

OR cpe:/h:netgear:rbs750:-:*:*:*:*:*:*:*

Denotes that component is vulnerable

Vulnerability Name:

CVE-2021-45558 (CCN-210216)

Assigned:

2021-09-26

Published:

2021-09-26

Updated:

2022-01-04

Summary:

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects RBK752 before 3.2.16.6, RBR750 before 3.2.16.6, RBS750 before 3.2.16.6, RBK852 before 3.2.16.6, RBR850 before 3.2.16.6, and RBS850 before 3.2.16.6.

CVSS v3 Severity:

6.8 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
5.9 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Adjacent Attack Complexity (AC): Low Privileges Required (PR): High User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

8.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H)
7.3 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Adjacent Attack Complexity (AC): Low Privileges Required (PR): High User Interaction (UI): None
Scope:	Scope (S): Changed
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

5.2 Medium (CVSS v2 Vector: AV:A/AC:L/Au:S/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Adjacent_Network Access Complexity (AC): Low Authentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

7.7 High (CCN CVSS v2 Vector: AV:A/AC:L/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Adjacent_Network Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-77

Vulnerability Consequences:

Gain Access

References:

Vulnerable Configuration:

Configuration CCN 1:

cpe:/h:netgear:rbk752:-:*:*:*:*:*:*:*

OR cpe:/h:netgear:rbr750:-:*:*:*:*:*:*:*

OR cpe:/h:netgear:rbk852:-:*:*:*:*:*:*:*

OR cpe:/h:netgear:rbr850:-:*:*:*:*:*:*:*

OR cpe:/h:netgear:rbs850:-:*:*:*:*:*:*:*

OR cpe:/h:netgear:rbs750:-:*:*:*:*:*:*:*

Denotes that component is vulnerable

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