""ET EXPLOIT Shenzhen TVT DVR/NVR/IPC Stack Overflow in Base64 Authorization Mechanism M1""

SID: 2036255

Revision: 2

Class Type: attempted-admin

Metadata: affected_product DVR, attack_target Networking_Equipment, created_at 2022_04_19, deployment Perimeter, deployment Internal, performance_impact Low, signature_severity Major, updated_at 2022_04_19

Reference:

Protocol: tcp

Source Network: any

Source Port: any

Destination Network: $HOME_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "Authorization|3a 20|Basic|20|YWRtaW46"

  • Value: "|0d 0a|"

  • Value: "|3c 3f|xml|20|" Depth: 6

  • Value: "clientType|3d 22|WEB|22|"

Within: 500

PCRE:

Special Options:

  • http_method

  • http_header

  • http_header

  • http_client_body

  • http_client_body

source