""ET EXPLOIT SonicWall SMA 100 Series - Possible Heap-Based Overflow Activity (CVE-2021-20043)""

SID: 2034897

Revision: 2

Class Type: attempted-admin

Metadata: created_at 2022_01_12, cve CVE_2021_20043, updated_at 2022_01_12

Reference:

  • cve

  • 2021-20043

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: "swcctn="

  • Value: "bmName=" Depth: 7

Within:

PCRE: "/^[^&]{100,}/R"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_client_body

source