CVE-2025-27021

The misconfiguration in the sudoers configuration of the operating system in Infinera G42 version R6.1.3 allows low privileged OS users to read/write physical memory via devmem command line tool. This could allow sensitive information disclosure, denial of service, and privilege escalation by tampering with kernel memory. Details: The output of "sudo -l" reports the presence of "devmem" command executable as super user without using a password. This command allows to read and write an arbitrary memory area of the target device, specifying an absolute address.

CVSS v3 7.0 HIGH

7.0^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.0 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://euvd.enisa.europa.eu/vulnerability/CVE-2025-27021
https://www.cvcn.gov.it/cvcn/cve/CVE-2025-27021

Configurations

No configuration.

History

03 Jul 2025, 15:13

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-07-02 09:15

Updated : 2025-07-03 15:13

NVD link : CVE-2025-27021

Mitre link : CVE-2025-27021

CVE.ORG link : CVE-2025-27021

JSON object : View

Products Affected

No product.

CWE

CWE-266

Incorrect Privilege Assignment

{"id": "CVE-2025-27021", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.0, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.0}]}, "published": "2025-07-02T09:15:25.117", "references": [{"url": "https://euvd.enisa.europa.eu/vulnerability/CVE-2025-27021", "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158"}, {"url": "https://www.cvcn.gov.it/cvcn/cve/CVE-2025-27021", "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-266"}]}], "descriptions": [{"lang": "en", "value": "The misconfiguration in the sudoers configuration of the operating system in\n Infinera G42 version R6.1.3 allows low privileged OS users to \nread/write physical memory via devmem command line tool. \nThis could \nallow sensitive information disclosure, denial of service, and privilege \nescalation by tampering with kernel memory.\n\n\nDetails: The output of \"sudo -l\" reports the presence of \"devmem\" command \nexecutable as super user without using a password. This command allows \nto read and write an arbitrary memory area of the target device, \nspecifying an absolute address."}, {"lang": "es", "value": "La configuraci\u00f3n incorrecta de sudoers en el sistema operativo Infinera G42 versi\u00f3n R6.1.3 permite a usuarios con privilegios bajos leer/escribir memoria f\u00edsica mediante la herramienta de l\u00ednea de comandos devmem. Esto podr\u00eda permitir la divulgaci\u00f3n de informaci\u00f3n confidencial, la denegaci\u00f3n de servicio y la escalada de privilegios al manipular la memoria del kernel. Detalles: La salida de \"sudo -l\" informa de la presencia del comando \"devmem\", ejecutable como superusuario sin contrase\u00f1a. Este comando permite leer y escribir en cualquier \u00e1rea de memoria del dispositivo de destino, especificando una direcci\u00f3n absoluta."}], "lastModified": "2025-07-03T15:13:53.147", "sourceIdentifier": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158"}