CVE-2021-34865

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of multiple NETGEAR routers. 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 escalate privileges and execute arbitrary code in the context of root. Was ZDI-CAN-13313.
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:netgear:ac2100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ac2100:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:netgear:ac2400_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ac2400:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND
cpe:2.3:o:netgear:ac2600_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ac2600:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND
cpe:2.3:o:netgear:d7000v1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:d7000v1:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
cpe:2.3:o:netgear:r6220_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6220:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND
cpe:2.3:o:netgear:r6230_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6230:-:*:*:*:*:*:*:*

Configuration 7 (hide)

AND
cpe:2.3:o:netgear:r6260_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6260:-:*:*:*:*:*:*:*

Configuration 8 (hide)

AND
cpe:2.3:o:netgear:r6330_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6330:-:*:*:*:*:*:*:*

Configuration 9 (hide)

AND
cpe:2.3:o:netgear:r6350_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6350:-:*:*:*:*:*:*:*

Configuration 10 (hide)

AND
cpe:2.3:o:netgear:r6700v2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6700v2:-:*:*:*:*:*:*:*

Configuration 11 (hide)

AND
cpe:2.3:o:netgear:r6800_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6800:-:*:*:*:*:*:*:*

Configuration 12 (hide)

AND
cpe:2.3:o:netgear:r6850_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6850:-:*:*:*:*:*:*:*

Configuration 13 (hide)

AND
cpe:2.3:o:netgear:r6900v2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6900v2:-:*:*:*:*:*:*:*

Configuration 14 (hide)

AND
cpe:2.3:o:netgear:r7200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r7200:-:*:*:*:*:*:*:*

Configuration 15 (hide)

AND
cpe:2.3:o:netgear:r7350_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r7350:-:*:*:*:*:*:*:*

Configuration 16 (hide)

AND
cpe:2.3:o:netgear:r7400_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r7400:-:*:*:*:*:*:*:*

Configuration 17 (hide)

AND
cpe:2.3:o:netgear:r7450_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r7450:-:*:*:*:*:*:*:*

History

21 Nov 2024, 06:11

Type Values Removed Values Added
References () https://kb.netgear.com/000063955/Security-Advisory-for-Authentication-Bypass-Vulnerability-on-Some-Routers-PSV-2021-0083?article=000063955 - Vendor Advisory () https://kb.netgear.com/000063955/Security-Advisory-for-Authentication-Bypass-Vulnerability-on-Some-Routers-PSV-2021-0083?article=000063955 - Vendor Advisory
References () https://www.zerodayinitiative.com/advisories/ZDI-21-1051/ - Third Party Advisory, VDB Entry () https://www.zerodayinitiative.com/advisories/ZDI-21-1051/ - Third Party Advisory, VDB Entry

Information

Published : 2022-01-25 16:15

Updated : 2024-11-21 06:11


NVD link : CVE-2021-34865

Mitre link : CVE-2021-34865

CVE.ORG link : CVE-2021-34865


JSON object : View

Products Affected

netgear

  • d7000v1
  • r6230_firmware
  • r6700v2_firmware
  • r7400_firmware
  • r6220
  • ac2600_firmware
  • r7200_firmware
  • r6230
  • ac2400
  • r7350
  • r6350
  • ac2600
  • r7450_firmware
  • ac2400_firmware
  • r6260_firmware
  • r6350_firmware
  • r6260
  • r7400
  • r6330
  • r6800
  • r6700v2
  • r6900v2_firmware
  • r7450
  • r6800_firmware
  • ac2100
  • r6900v2
  • r6850
  • r6220_firmware
  • ac2100_firmware
  • r6330_firmware
  • r6850_firmware
  • r7200
  • d7000v1_firmware
  • r7350_firmware
CWE
CWE-287

Improper Authentication

CWE-697

Incorrect Comparison