""ET EXPLOIT Possible Realtek SDK - formRebootCheck/formWsc Stack Buffer Overflow Inbound (CVE-2021-35392)""

SID: 2033837

Revision: 2

Class Type: attempted-user

Metadata: attack_target Server, created_at 2021_08_30, cve CVE_2021_35392, deployment Perimeter, deployment Internal, signature_severity Major, tag Exploit, updated_at 2023_04_05, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application

Reference:

• cve

• 2021-35392

Protocol: tcp

Source Network: any

Source Port: any

Destination Network: [$HOME_NET,$HTTP_SERVERS]

Destination Port: any

Flow: established,to_server

Contents:

• Value: "POST"

• Value: "/goform/"

• Value: "submit-url="

Within:

PCRE: "/\/goform\/form(RebootCheck|Wsc)$/U"

Special Options:

• http_method

• http_uri

• fast_pattern

• http_client_body

source