Medium Severity
Open Redirect: fenc.com
Description
Message contains use of the fenc.com open redirect. This has been exploited in the wild.
References
No references.
Sublime Security
Created Oct 8th, 2024 • Last updated Oct 8th, 2024
Feed Source
Sublime Core Feed
Source
type.inbound
and any(body.links,
.href_url.domain.root_domain == "fenc.com"
and .href_url.path =~ "/redirector.aspx"
and regex.icontains(.href_url.query_params, 'y=(?:https?|(?:\/|%2f)(?:\/|%2f))')
and not regex.icontains(.href_url.query_params, 'y=[^\&]*fenc\.com')
)
and not sender.email.domain.root_domain == "fenc.com"
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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