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CVE-2020-27861 Detail

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR Orbi 2.5.1.16 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the UA_Parser utility. A crafted Host Name option in a DHCP request can trigger execution of a system call composed from a user-supplied string. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-11076.


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:  8.8 HIGH
Vector:  CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://kb.netgear.com/000062507/Security-Advisory-for-Unauthenticated-Command-Injection-Vulnerability-on-Some-Extenders-and-Orbi-WiFi-Systems Vendor Advisory 
https://kb.netgear.com/000062507/Security-Advisory-for-Unauthenticated-Command-Injection-Vulnerability-on-Some-Extenders-and-Orbi-WiFi-Systems Vendor Advisory 
https://www.zerodayinitiative.com/advisories/ZDI-20-1430/ Third Party Advisory  VDB Entry 
https://www.zerodayinitiative.com/advisories/ZDI-20-1430/ Third Party Advisory  VDB Entry 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') cwe source acceptance level NIST   Zero Day Initiative  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:netgear:cbk40_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.38
Running on/with
 cpe:2.3:h:netgear:cbk40:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:o:netgear:cbk43_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.38
Running on/with
 cpe:2.3:h:netgear:cbk43:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:o:netgear:cbr40_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.38
Running on/with
 cpe:2.3:h:netgear:cbr40:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 4 ( hide )
 cpe:2.3:o:netgear:ex6200_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
1.0.1.82
Running on/with
 cpe:2.3:h:netgear:ex6200:v2:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 5 ( hide )
 cpe:2.3:o:netgear:ex7700_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
1.0.0.210
Running on/with
 cpe:2.3:h:netgear:ex7700:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 6 ( hide )
 cpe:2.3:o:netgear:ex8000_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
1.0.1.224
Running on/with
 cpe:2.3:h:netgear:ex8000:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 7 ( hide )
 cpe:2.3:o:netgear:rbk12_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.44
Running on/with
 cpe:2.3:h:netgear:rbk12:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 8 ( hide )
 cpe:2.3:o:netgear:rbk13_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.44
Running on/with
 cpe:2.3:h:netgear:rbk13:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 9 ( hide )
 cpe:2.3:o:netgear:rbk14_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.44
Running on/with
 cpe:2.3:h:netgear:rbk14:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 10 ( hide )
 cpe:2.3:o:netgear:rbk15_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.44
Running on/with
 cpe:2.3:h:netgear:rbk15:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 11 ( hide )
 cpe:2.3:o:netgear:rbr10_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.44
Running on/with
 cpe:2.3:h:netgear:rbr10:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 12 ( hide )
 cpe:2.3:o:netgear:rbs10_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.44
Running on/with
 cpe:2.3:h:netgear:rbs10:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 13 ( hide )
 cpe:2.3:o:netgear:rbk20w_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.36
Running on/with
 cpe:2.3:h:netgear:rbk20w:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 14 ( hide )
 cpe:2.3:o:netgear:rbk23w_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.36
Running on/with
 cpe:2.3:h:netgear:rbk23w:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 15 ( hide )
 cpe:2.3:o:netgear:rbk20_router_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.36
 cpe:2.3:o:netgear:rbk20_satellite_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.38
Running on/with
 cpe:2.3:h:netgear:rbk20:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 16 ( hide )
 cpe:2.3:o:netgear:rbk22_router_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.36
 cpe:2.3:o:netgear:rbk22_satellite_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.38
Running on/with
 cpe:2.3:h:netgear:rbk22:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 17 ( hide )
 cpe:2.3:o:netgear:rbk23_router_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.36
 cpe:2.3:o:netgear:rbk23_satellite_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.38
Running on/with
 cpe:2.3:h:netgear:rbk23:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 18 ( hide )
 cpe:2.3:o:netgear:rbr20_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.36
Running on/with
 cpe:2.3:h:netgear:rbr20:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 19 ( hide )
 cpe:2.3:o:netgear:rbs20_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.38
Running on/with
 cpe:2.3:h:netgear:rbs20:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 20 ( hide )
 cpe:2.3:o:netgear:rbk30_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.36
Running on/with
 cpe:2.3:h:netgear:rbk30:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 21 ( hide )
 cpe:2.3:o:netgear:rbk33_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.36
Running on/with
 cpe:2.3:h:netgear:rbk33:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 22 ( hide )
 cpe:2.3:o:netgear:rbk40_router_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.36
 cpe:2.3:o:netgear:rbk40_satellite_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.38
Running on/with
 cpe:2.3:h:netgear:rbk40:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 23 ( hide )
 cpe:2.3:o:netgear:rbk43_router_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.36
 cpe:2.3:o:netgear:rbk43_satellite_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.38
Running on/with
 cpe:2.3:h:netgear:rbk43:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 24 ( hide )
 cpe:2.3:o:netgear:rbk43s_router_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.36
 cpe:2.3:o:netgear:rbk43s_satellite_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.38
Running on/with
 cpe:2.3:h:netgear:rbk43s:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 25 ( hide )
 cpe:2.3:o:netgear:rbk44_router_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.36
 cpe:2.3:o:netgear:rbk44_satellite_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.38
Running on/with
 cpe:2.3:h:netgear:rbk44:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 26 ( hide )
 cpe:2.3:o:netgear:rbr40_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.36
Running on/with
 cpe:2.3:h:netgear:rbr40:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 27 ( hide )
 cpe:2.3:o:netgear:rbs40_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.38
Running on/with
 cpe:2.3:h:netgear:rbs40:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 28 ( hide )
 cpe:2.3:o:netgear:rbk50_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.40
Running on/with
 cpe:2.3:h:netgear:rbk50:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 29 ( hide )
 cpe:2.3:o:netgear:rbk50v_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.40
Running on/with
 cpe:2.3:h:netgear:rbk50v:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 30 ( hide )
 cpe:2.3:o:netgear:rbk52w_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.40
Running on/with
 cpe:2.3:h:netgear:rbk52w:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 31 ( hide )
 cpe:2.3:o:netgear:rbr50_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.40
Running on/with
 cpe:2.3:h:netgear:rbr50:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 32 ( hide )
 cpe:2.3:o:netgear:rbs50_firmware:*:*:*:*:*:*:*:*
   Show Matching CPE(s)
Up to (excluding)
2.6.1.40
Running on/with
 cpe:2.3:h:netgear:rbs50:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

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

Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-27861
NVD Published Date:
02/11/2021
NVD Last Modified:
11/21/2024
Source:
Zero Day Initiative