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

27 Oct 2022, 11:53

Type Values Removed Values Added
CWE CWE-287 CWE-697

01 Feb 2022, 15:46

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : 8.3
v3 : 8.8
References (MISC) https://www.zerodayinitiative.com/advisories/ZDI-21-1051/ - (MISC) https://www.zerodayinitiative.com/advisories/ZDI-21-1051/ - Third Party Advisory, VDB Entry
References (MISC) https://kb.netgear.com/000063955/Security-Advisory-for-Authentication-Bypass-Vulnerability-on-Some-Routers-PSV-2021-0083?article=000063955 - (MISC) https://kb.netgear.com/000063955/Security-Advisory-for-Authentication-Bypass-Vulnerability-on-Some-Routers-PSV-2021-0083?article=000063955 - Vendor Advisory
CPE cpe:2.3:h:netgear:r6260:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r7450_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6330:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ac2100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ac2600:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r7350:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6220:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6900v2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r7200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ac2600_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6350_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r7450:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6350:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6220_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6800_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ac2100:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6700v2:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6900v2:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:d7000v1:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6700v2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6260_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:ac2400:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6230_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6230:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:ac2400_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6850:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:d7000v1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r7400_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6330_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r7200:-:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r6800:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r7350_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6850_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:netgear:r7400:-:*:*:*:*:*:*:*

25 Jan 2022, 16:15

Type Values Removed Values Added
New CVE

Information

Published : 2022-01-25 16:15

Updated : 2024-02-04 22:08


NVD link : CVE-2021-34865

Mitre link : CVE-2021-34865

CVE.ORG link : CVE-2021-34865


JSON object : View

Products Affected

netgear

  • ac2600_firmware
  • r6900v2_firmware
  • r7450
  • r6230_firmware
  • r6260
  • ac2400_firmware
  • r6350
  • r6800
  • r6850
  • r6700v2_firmware
  • r6220
  • r6330
  • r6900v2
  • r6800_firmware
  • ac2100_firmware
  • r6850_firmware
  • r7400_firmware
  • r7350_firmware
  • r6230
  • ac2600
  • r6220_firmware
  • r7200_firmware
  • r7450_firmware
  • ac2100
  • r6330_firmware
  • d7000v1
  • r7400
  • r6700v2
  • r6350_firmware
  • r7200
  • d7000v1_firmware
  • r6260_firmware
  • r7350
  • ac2400
CWE
CWE-697

Incorrect Comparison

CWE-287

Improper Authentication