Zammad is a web based open source helpdesk\/customer support system. Prior to 7.1.2, when Zammad checks the digital signature on an incoming S\/MIME-signed email, it does not verify that the signing certificate is genuinely trusted, it only checks whether a certificate with a matching name is already stored in the system. An attacker can create their own certificate using the name of a real, previously trusted sender and use it to send a forged email. Zammad will display that email with the same “validly signed” indicator as a genuine message from the real sender, even though the attacker never had access to that sender’s actual certificate or private key. This issue is fixed in version 7.1.2.<\/p>\n","protected":false},"excerpt":{"rendered":"
Zammad is a web based open source helpdesk\/customer support system. Prior to 7.1.2, when Zammad checks the digital signature on an incoming S\/MIME-signed email, it does not verify that the signing cer<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-29497","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/29497","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=29497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29497"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}