Vulnerability CVE-2020-17409

Vulnerability Name:

CVE-2020-17409 (CCN-188315)

Assigned:

2020-09-15

Published:

2020-09-15

Updated:

2020-12-03

Summary:

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of NETGEAR R6120, R6080, R6260, R6220, R6020, JNR3210, and WNR2020 routers with firmware 1.0.66. Authentication is not required to exploit this vulnerability. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-10754.

CVSS v3 Severity:

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

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

6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:R)

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

CVSS v2 Severity:

3.3 Low (CVSS v2 Vector: AV:A/AC:L/Au:N/C:P/I:N/A:N)

Exploitability Metrics:	Access Vector (AV): Adjacent_Network Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): None Availibility (A): None

6.1 Medium (CCN CVSS v2 Vector: AV:A/AC:L/Au:N/C:C/I:N/A:N)

Exploitability Metrics:	Access Vector (AV): Adjacent_Network Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): None Availibility (A): None

Vulnerability Type:

CWE-288

Vulnerability Consequences:

Bypass Security

References:

Source: MITRE
Type: CNA
CVE-2020-17409

Source: XF
Type: UNKNOWN
netgear-cve202017409-sec-bypass(188315)

Source: N/A
Type: Patch, Vendor Advisory
N/A

Source: CCN
Type: Netgear Web site
Netgear

Source: CCN
Type: ZDI-20-1176
NETGEAR Multiple Routers mini_httpd Authentication Bypass Vulnerability

Source: N/A
Type: Third Party Advisory, VDB Entry
N/A

Vulnerable Configuration:

Configuration 1:

cpe:/o:netgear:r6020_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.44)

AND

cpe:/h:netgear:r6020:-:*:*:*:*:*:*:*

Configuration 2:

cpe:/o:netgear:r6080_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.44)

AND

cpe:/h:netgear:r6080:-:*:*:*:*:*:*:*

Configuration 3:

cpe:/o:netgear:r6120_firmware:*:*:*:*:*:*:*:* (Version < 1.0.0.70)

AND