Vulnerability CVE-2019-20739

Vulnerability Name:

CVE-2019-20739 (CCN-180384)

Assigned:

2019-09-04

Published:

2019-09-04

Updated:

2020-04-22

Summary:

NETGEAR R8500 devices before v1.0.2.128 are affected by a buffer overflow by an unauthenticated attacker.

CVSS v3 Severity:

8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/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): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

4.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
3.8 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)

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): None Integrity (I): None Availibility (A): Low

CVSS v2 Severity:

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

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

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

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

Vulnerability Type:

CWE-120

Vulnerability Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2019-20739

Source: XF
Type: UNKNOWN
netgear-cve201920739-bo(180384)

Source: CCN
Type: NETGEAR Security Advisory: PSV-2017-0636
Security Advisory for Pre-Authentication Buffer Overflow on R8500

Source: CONFIRM
Type: Vendor Advisory
https://kb.netgear.com/000061179/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-R8500-PSV-2017-0636

Vulnerable Configuration:

Configuration 1:

cpe:/o:netgear:r8500_firmware:*:*:*:*:*:*:*:* (Version < 1.0.2.128)

AND

cpe:/h:netgear:r8500:-:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/h:netgear:r8500:-:*:*:*:*:*:*:*

Denotes that component is vulnerable

BACK