8.8
CVE-2021-27256
- EPSS 0.87%
- Veröffentlicht 05.03.2021 20:15:12
- Zuletzt bearbeitet 21.11.2024 05:57:42
- Erkennungen
LoginThis 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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Netgear ≫ Br200 Firmware Version < 5.10.0.5
Netgear ≫ Br500 Firmware Version < 5.10.0.5
Netgear ≫ D7800 Firmware Version < 1.0.1.60
Netgear ≫ Ex6100v2 Firmware Version < 1.0.1.98
Netgear ≫ Ex6150v2 Firmware Version < 1.0.1.98
Netgear ≫ Ex6250 Firmware Version < 1.0.0.134
Netgear ≫ Ex6400 Firmware Version < 1.0.2.158
Netgear ≫ Ex6400v2 Firmware Version < 1.0.0.134
Netgear ≫ Ex6410 Firmware Version < 1.0.0.134
Netgear ≫ Ex6420 Firmware Version < 1.0.0.134
Netgear ≫ Ex7300 Firmware Version < 1.0.2.158
Netgear ≫ Ex7300v2 Firmware Version < 1.0.0.134
Netgear ≫ Ex7320 Firmware Version < 1.0.0.134
Netgear ≫ Ex7700 Firmware Version < 1.0.0.216
Netgear ≫ Ex8000 Firmware Version < 1.0.1.232
Netgear ≫ Lbr20 Firmware Version < 2.6.3.50
Netgear ≫ R7800 Firmware Version < 1.0.2.80
Netgear ≫ R8900 Firmware Version < 1.0.5.28
Netgear ≫ R9000 Firmware Version < 1.0.5.28
Netgear ≫ Rbk12 Firmware Version < 2.7.2.104
Netgear ≫ Rbk13 Firmware Version < 2.7.2.104
Netgear ≫ Rbk14 Firmware Version < 2.7.2.104
Netgear ≫ Rbk15 Firmware Version < 2.7.2.104
Netgear ≫ Rbk20 Firmware Version < 2.6.2.104
Netgear ≫ Rbk23 Firmware Version < 2.7.2.104
Netgear ≫ Rbk40 Firmware Version < 2.6.2.104
Netgear ≫ Rbk43 Firmware Version < 2.6.2.104
Netgear ≫ Rbk43s Firmware Version < 2.6.2.104
Netgear ≫ Rbk44 Firmware Version < 2.6.2.104
Netgear ≫ Rbk50 Firmware Version < 2.7.2.104
Netgear ≫ Rbk53 Firmware Version < 2.7.2.104
Netgear ≫ Rbr10 Firmware Version < 2.6.2.104
Netgear ≫ Rbr20 Firmware Version < 2.6.2.104
Netgear ≫ Rbr40 Firmware Version < 2.6.2.104
Netgear ≫ Rbr50 Firmware Version < 2.7.2.104
Netgear ≫ Rbs10 Firmware Version < 2.6.2.104
Netgear ≫ Rbs20 Firmware Version < 2.6.2.104
Netgear ≫ Rbs40 Firmware Version < 2.6.2.104
Netgear ≫ Rbs50 Firmware Version < 2.7.2.104
Netgear ≫ Rbs50y Firmware Version < 2.6.2.104
Netgear ≫ Xr450 Firmware Version < 2.3.2.114
Netgear ≫ Xr500 Firmware Version < 2.3.2.114
Netgear ≫ Xr700 Firmware Version < 1.0.1.38
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.87% | 0.54 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| NIST | 8.8 | 2.8 | 5.9 |
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
|
| NIST | 8.3 | 6.5 | 10 |
AV:A/AC:L/Au:N/C:C/I:C/A:C
|
| Trend Micro | 8.8 | 2.8 | 5.9 |
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
|
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
https://kb.netgear.com/000062883/Security-Advisory-for-Multiple-Vulnerabilities-on-Some-Routers-Satellites-and-Extenders
https://www.zerodayinitiative.com/advisories/ZDI-21-262/