Vulnerability Name:

CVE-2020-10928 (CCN-183411)

Assigned:2020-06-15
Published:2020-06-15
Updated:2020-07-30
Summary:This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700 V1.0.4.84_10.0.58 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of string table file uploads. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length, heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the web server. Was ZDI-CAN-9767.
CVSS v3 Severity:8.4 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.3 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/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): Local
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
8.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.3 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/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): Local
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
CVSS v2 Severity:4.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
7.2 High (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-122
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-10928

Source: XF
Type: UNKNOWN
netgear-r6700-stringtable-bo(183411)

Source: CCN
Type: NETGEAR Web site
NETGEAR R6700 routers

Source: CCN
Type: ZDI-20-708
(0Day) NETGEAR R6700 httpd strtblupgrade Heap-based Buffer Overflow Remote Code Execution Vulnerability

Source: MISC
Type: Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-708/

Vulnerable Configuration:Configuration 1:
  • cpe:/o:netgear:r6700_firmware:1.0.4.84_10.0.58:*:*:*:*:*:*:*
  • AND
  • cpe:/h:netgear:r6700:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/h:netgear:r6700:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    netgear r6700 firmware 1.0.4.84_10.0.58
    netgear r6700 -
    netgear r6700 -