Sagemcom F@ST 5280 routers using firmware version 1.150.61 have insecure deserialization that allows any authenticated user to perform a privilege escalation to any other user. By making a request with valid sess_id, nonce, and ha1 values inside of the serialized session cookie, an attacker may alter the user value inside of this cookie, and assume the role and permissions of the user specified. By assuming the role of the user internal, which is inaccessible to end users by default, the attacker gains the permissions of the internal account, which includes the ability to flash custom firmware to the router, allowing the attacker to achieve a complete compromise.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2020-09-01T17:20:23

Updated: 2024-08-04T15:05:11.861Z

Reserved: 2020-08-13T00:00:00

Link: CVE-2020-24034

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-09-01T18:15:13.587

Modified: 2024-11-21T05:14:20.723

Link: CVE-2020-24034

cve-icon Redhat

No data.