CVE-2020-10924 Detail

Current Description

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6700 V1.0.4.84_10.0.58 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the UPnP service, which listens on TCP port 5000 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length, stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-9643.

View Analysis Description

Analysis Description

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6700 V1.0.4.84_10.0.58 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the UPnP service, which listens on TCP port 5000 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length, stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-9643.

Severity

CVSS 3.x Severity and Metrics:

CVSS 2.0 Severity and Metrics:

References to Advisories, Solutions, and Tools

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Weakness Enumeration

CWE-ID CWE Name Source
CWE-121 Stack-based Buffer Overflow Zero Day Initiative  

Change History

1 change records found show changes

Initial Analysis 7/29/2020 2:29:48 PM

Action Type Old Value New Value
Added CPE Configuration
AND
     OR
          *cpe:2.3:o:netgear:r6700_firmware:1.0.4.84_10.0.58:*:*:*:*:*:*:*
     OR
          cpe:2.3:h:netgear:r6700:-:*:*:*:*:*:*:*
Added CVSS V2
NIST (AV:A/AC:L/Au:N/C:C/I:C/A:C)
Added CVSS V3.1
NIST AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Changed Reference Type
https://www.zerodayinitiative.com/advisories/ZDI-20-704/ No Types Assigned
https://www.zerodayinitiative.com/advisories/ZDI-20-704/ Third Party Advisory, VDB Entry

Quick Info

CVE Dictionary Entry:
CVE-2020-10924
NVD Published Date:
07/28/2020
NVD Last Modified:
07/29/2020
Source:
MITRE