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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-27255 Detail

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of NETGEAR R7800 firmware version 1.0.2.76. Authentication is not required to exploit this vulnerability. The specific flaw exists within the refresh_status.aspx endpoint. The issue results from a lack of authentication required to start a service on the server. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-12360.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 3.x Severity and Vector Strings:

NIST CVSS score
NIST: NVD
Base Score:  8.8 HIGH
Vector:  CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Nist CVSS score does not match with CNA score
CNA:  Zero Day Initiative
Base Score:  6.3 MEDIUM
Vector:  CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://kb.netgear.com/000062883/Security-Advisory-for-Multiple-Vulnerabilities-on-Some-Routers-Satellites-and-Extenders Patch  Vendor Advisory 
https://kb.netgear.com/000062883/Security-Advisory-for-Multiple-Vulnerabilities-on-Some-Routers-Satellites-and-Extenders Patch  Vendor Advisory 
https://www.zerodayinitiative.com/advisories/ZDI-21-263/ Third Party Advisory  VDB Entry 
https://www.zerodayinitiative.com/advisories/ZDI-21-263/ Third Party Advisory  VDB Entry 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-306 Missing Authentication for Critical Function Zero Day Initiative  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:netgear:br200_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
5.10.0.5
Running on/with
 cpe:2.3:h:netgear:br200:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:o:netgear:br500_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
5.10.0.5
Running on/with
 cpe:2.3:h:netgear:br500:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:o:netgear:d7800_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.0.1.60
Running on/with
 cpe:2.3:h:netgear:d7800:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 4 ( hide )
 cpe:2.3:o:netgear:ex6100v2_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.0.1.98
Running on/with
 cpe:2.3:h:netgear:ex6100v2:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 5 ( hide )
 cpe:2.3:o:netgear:ex6150v2_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.0.1.98
Running on/with
 cpe:2.3:h:netgear:ex6150v2:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 6 ( hide )
 cpe:2.3:o:netgear:ex6250_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.0.0.134
Running on/with
 cpe:2.3:h:netgear:ex6250:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 7 ( hide )
 cpe:2.3:o:netgear:ex6400_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.0.2.158
Running on/with
 cpe:2.3:h:netgear:ex6400:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 8 ( hide )
 cpe:2.3:o:netgear:ex6400v2_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.0.0.134
Running on/with
 cpe:2.3:h:netgear:ex6400v2:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 9 ( hide )
 cpe:2.3:o:netgear:ex6410_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.0.0.134
Running on/with
 cpe:2.3:h:netgear:ex6410:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 10 ( hide )
 cpe:2.3:o:netgear:ex6420_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.0.0.134
Running on/with
 cpe:2.3:h:netgear:ex6420:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 11 ( hide )
 cpe:2.3:o:netgear:ex7300_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.0.2.158
Running on/with
 cpe:2.3:h:netgear:ex7300:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 12 ( hide )
 cpe:2.3:o:netgear:ex7300v2_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.0.0.134
Running on/with
 cpe:2.3:h:netgear:ex7300v2:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 13 ( hide )
 cpe:2.3:o:netgear:ex7320_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.0.0.134
Running on/with
 cpe:2.3:h:netgear:ex7320:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 14 ( hide )
 cpe:2.3:o:netgear:ex7700_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.0.0.216
Running on/with
 cpe:2.3:h:netgear:ex7700:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 15 ( hide )
 cpe:2.3:o:netgear:ex8000_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.0.1.232
Running on/with
 cpe:2.3:h:netgear:ex8000:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 16 ( hide )
 cpe:2.3:o:netgear:lbr20_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.6.3.50
Running on/with
 cpe:2.3:h:netgear:lbr20:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 17 ( hide )
 cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.0.2.80
Running on/with
 cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 18 ( hide )
 cpe:2.3:o:netgear:r8900_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.0.5.28
Running on/with
 cpe:2.3:h:netgear:r8900:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 19 ( hide )
 cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.0.5.28
Running on/with
 cpe:2.3:h:netgear:r9000:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 20 ( hide )
 cpe:2.3:o:netgear:rbk12_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.7.2.104
Running on/with
 cpe:2.3:h:netgear:rbk12:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 21 ( hide )
 cpe:2.3:o:netgear:rbk13_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.7.2.104
Running on/with
 cpe:2.3:h:netgear:rbk13:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 22 ( hide )
 cpe:2.3:o:netgear:rbk14_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.7.2.104
Running on/with
 cpe:2.3:h:netgear:rbk14:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 23 ( hide )
 cpe:2.3:o:netgear:rbk15_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.7.2.104
Running on/with
 cpe:2.3:h:netgear:rbk15:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 24 ( hide )
 cpe:2.3:o:netgear:rbk20_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.6.2.104
Running on/with
 cpe:2.3:h:netgear:rbk20:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 25 ( hide )
 cpe:2.3:o:netgear:rbk23_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.7.2.104
Running on/with
 cpe:2.3:h:netgear:rbk23:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 26 ( hide )
 cpe:2.3:o:netgear:rbk40_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.6.2.104
Running on/with
 cpe:2.3:h:netgear:rbk40:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 27 ( hide )
 cpe:2.3:o:netgear:rbk43_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.6.2.104
Running on/with
 cpe:2.3:h:netgear:rbk43:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 28 ( hide )
 cpe:2.3:o:netgear:rbk43s_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.6.2.104
Running on/with
 cpe:2.3:h:netgear:rbk43s:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 29 ( hide )
 cpe:2.3:o:netgear:rbk44_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.6.2.104
Running on/with
 cpe:2.3:h:netgear:rbk44:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 30 ( hide )
 cpe:2.3:o:netgear:rbk50_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.7.2.104
Running on/with
 cpe:2.3:h:netgear:rbk50:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 31 ( hide )
 cpe:2.3:o:netgear:rbk53_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.7.2.104
Running on/with
 cpe:2.3:h:netgear:rbk53:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 32 ( hide )
 cpe:2.3:o:netgear:rbr10_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.6.2.104
Running on/with
 cpe:2.3:h:netgear:rbr10:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 33 ( hide )
 cpe:2.3:o:netgear:rbr20_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.6.2.104
Running on/with
 cpe:2.3:h:netgear:rbr20:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 34 ( hide )
 cpe:2.3:o:netgear:rbr40_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.6.2.104
Running on/with
 cpe:2.3:h:netgear:rbr40:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 35 ( hide )
 cpe:2.3:o:netgear:rbr50_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.7.2.104
Running on/with
 cpe:2.3:h:netgear:rbr50:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 36 ( hide )
 cpe:2.3:o:netgear:rbs10_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.6.2.104
Running on/with
 cpe:2.3:h:netgear:rbs10:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 37 ( hide )
 cpe:2.3:o:netgear:rbs20_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.6.2.104
Running on/with
 cpe:2.3:h:netgear:rbs20:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 38 ( hide )
 cpe:2.3:o:netgear:rbs40_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.6.2.104
Running on/with
 cpe:2.3:h:netgear:rbs40:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 39 ( hide )
 cpe:2.3:o:netgear:rbs50_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.7.2.104
Running on/with
 cpe:2.3:h:netgear:rbs50:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 40 ( hide )
 cpe:2.3:o:netgear:rbs50y_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.6.2.104
Running on/with
 cpe:2.3:h:netgear:rbs50y:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 41 ( hide )
 cpe:2.3:o:netgear:xr450_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.3.2.114
Running on/with
 cpe:2.3:h:netgear:xr450:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 42 ( hide )
 cpe:2.3:o:netgear:xr500_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
2.3.2.114
Running on/with
 cpe:2.3:h:netgear:xr500:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 43 ( hide )
 cpe:2.3:o:netgear:xr700_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
1.0.1.38
Running on/with
 cpe:2.3:h:netgear:xr700:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-27255
NVD Published Date:
03/05/2021
NVD Last Modified:
11/21/2024
Source:
Zero Day Initiative