Affected versions of MISP do not enforce parent-event visibility when serving cryptographic keys through CryptographicKeysController::view().<\/p>\n
The vulnerable handler queried CryptographicKey directly using the supplied key ID and selected sensitive fields such as:<\/p>\n
*
\ntype<\/p>\n
*
\nkey_data<\/p>\n
*
\nfingerprint<\/p>\n
but did not fetch or authorize the associated parent event first.<\/p>\n
The upstream commit explicitly states that cryptographicKeys\/view could return a protected event\u2019s signing key to any authenticated user.<\/p>\n
The fix adds parent_id and parent_type to the lookup and then enforces authorization through the associated event using fetchSimpleEvent($user, parent_id). If the parent is not an Event, access is limited to site administrators.<\/p>\n
Version affected: \u22642.5.45<\/p>\n","protected":false},"excerpt":{"rendered":"
Affected versions of MISP do not enforce parent-event visibility when serving cryptographic keys through CryptographicKeysController::view().<\/p>\n
The vulnerable handler queried CryptographicKey directly<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-18049","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/18049","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=18049"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18049"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18049"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}