Open redirect: Panera Bread

 1name: "Open redirect: Panera Bread"
 2description: |
 3    Looks for use of the Panera Bread open redirect coming from someone other than Panera.
 4references:
 5  - "https://twitter.com/jkamdjou/status/1277326608739729413"
 6type: "rule"
 7severity: "medium"
 8source: |
 9  type.inbound
10  and 0 < length(body.links) < 10
11  and any(body.links, .href_url.domain.domain == 't.e1.panerabread.com' and .href_url.path =~ '/r/')
12  and sender.email.domain.root_domain != 'panerabread.com'  
13tags:
14  - "Attack surface reduction"
15attack_types:
16  - "Credential Phishing"
17  - "Malware/Ransomware"
18tactics_and_techniques:
19  - "Open redirect"
20detection_methods:
21  - "Sender analysis"
22  - "URL analysis"
23id: "91a726a2-9f14-54bf-8f2c-fe7ed7ee6142"