CVE-2021-27256

HIGH

8.8

Beschreibung

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R7800 firmware version 1.0.2.76. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of the rc_service parameter provided to apply_save.cgi. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-12355.

CVE Details

CVSS v3.1 Bewertung8.8

SchweregradHIGH

CVSS VektorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AngriffsvektorADJACENT_NETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht3/5/2021

Zuletzt geandert11/21/2024

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

netgear:br200netgear:br200_firmwarenetgear:br500netgear:br500_firmwarenetgear:d7800netgear:d7800_firmwarenetgear:ex6100v2netgear:ex6100v2_firmwarenetgear:ex6150v2netgear:ex6150v2_firmwarenetgear:ex6250netgear:ex6250_firmwarenetgear:ex6400netgear:ex6400_firmwarenetgear:ex6400v2netgear:ex6400v2_firmwarenetgear:ex6410netgear:ex6410_firmwarenetgear:ex6420netgear:ex6420_firmwarenetgear:ex7300netgear:ex7300_firmwarenetgear:ex7300v2netgear:ex7300v2_firmwarenetgear:ex7320netgear:ex7320_firmwarenetgear:ex7700netgear:ex7700_firmwarenetgear:ex8000netgear:ex8000_firmwarenetgear:lbr20netgear:lbr20_firmwarenetgear:r7800netgear:r7800_firmwarenetgear:r8900netgear:r8900_firmwarenetgear:r9000netgear:r9000_firmwarenetgear:rbk12netgear:rbk12_firmwarenetgear:rbk13netgear:rbk13_firmwarenetgear:rbk14netgear:rbk14_firmwarenetgear:rbk15netgear:rbk15_firmwarenetgear:rbk20netgear:rbk20_firmwarenetgear:rbk23netgear:rbk23_firmwarenetgear:rbk40netgear:rbk40_firmwarenetgear:rbk43netgear:rbk43_firmwarenetgear:rbk43snetgear:rbk43s_firmwarenetgear:rbk44netgear:rbk44_firmwarenetgear:rbk50netgear:rbk50_firmwarenetgear:rbk53netgear:rbk53_firmwarenetgear:rbr10netgear:rbr10_firmwarenetgear:rbr20netgear:rbr20_firmwarenetgear:rbr40netgear:rbr40_firmwarenetgear:rbr50netgear:rbr50_firmwarenetgear:rbs10netgear:rbs10_firmwarenetgear:rbs20netgear:rbs20_firmwarenetgear:rbs40netgear:rbs40_firmwarenetgear:rbs50netgear:rbs50_firmwarenetgear:rbs50ynetgear:rbs50y_firmwarenetgear:xr450netgear:xr450_firmwarenetgear:xr500netgear:xr500_firmwarenetgear:xr700netgear:xr700_firmware

Schwachen (CWE)

CWE-78

Referenzen

https://kb.netgear.com/000062883/Security-Advisory-for-Multiple-Vulnerabilities-on-Some-Routers-Satellites-and-Extenders(zdi-disclosures@trendmicro.com)

https://www.zerodayinitiative.com/advisories/ZDI-21-262/(zdi-disclosures@trendmicro.com)

https://kb.netgear.com/000062883/Security-Advisory-for-Multiple-Vulnerabilities-on-Some-Routers-Satellites-and-Extenders(af854a3a-2127-422b-91ae-364da2661108)

https://www.zerodayinitiative.com/advisories/ZDI-21-262/(af854a3a-2127-422b-91ae-364da2661108)

IOC Korrelationen

Keine Korrelationen erfasst

This product uses data from the NVD API but is not endorsed or certified by the NVD.