• Sublime Core Feed
Medium Severity

Open redirect: City of Calgary

Labels

Credential Phishing
Exploit
Open redirect
Social engineering
Sender analysis
URL analysis

Description

Message contains use of calgary.ca's open redirect but the sender is not the City of Calgary.

References

No references.

Sublime Security
Created Sep 11th, 2024 • Last updated Sep 11th, 2024
Feed Source
Sublime Core Feed
Source
GitHub
type.inbound
and any(body.links,
        .href_url.domain.root_domain == 'calgary.ca'
        and .href_url.path =~ '/_layouts/cocis/DirectDownload.aspx'
        and strings.icontains(.href_url.query_params, "redirect")
)
and sender.email.domain.root_domain != 'calgary.ca'
and (
  not profile.by_sender().solicited
  or (
    profile.by_sender().any_messages_malicious_or_spam
    and not profile.by_sender().any_false_positives
  )
)

// negate highly trusted sender domains unless they fail DMARC authentication
and (
  (
    sender.email.domain.root_domain in $high_trust_sender_root_domains
    and not headers.auth_summary.dmarc.pass
  )
  or sender.email.domain.root_domain not in $high_trust_sender_root_domains
)
MQL Rule Console
DocsLearning Labs

Playground

Test against your own EMLs or sample data.

Share

Post about this on your socials.

Get Started. Today.

Managed or self-managed. No MX changes.

Get Started