Medium Severity
Open Redirect: emp.eduyield.com
Description
Message contains use of the eduyield redirect which chains google amp. This has been exploited in the wild.
References
No references.
Sublime Security
Created Sep 6th, 2024 • Last updated Jan 27th, 2025
Feed Source
Sublime Core Feed
Source
type.inbound
and any(body.links,
.href_url.domain.domain == "emp.eduyield.com"
// the redirect field
and strings.icontains(.href_url.query_params, "&dest=")
and regex.icontains(.href_url.query_params, '&dest=(?:https?)?(?:(?:%3a|\:)?(?:\/|%2f){2})?google\.com[^\&]*\/+amp\/+(s\/+)?')
)
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
)
Playground
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