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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Description
In Roundcube Webmail before 1.3.10, an attacker in possession of S/MIME or PGP encrypted emails can wrap them as sub-parts within a crafted multipart email. The encrypted part(s) can further be hidden using HTML/CSS or ASCII newline characters. This modified multipart email can be re-sent by the attacker to the intended receiver. If the receiver replies to this (benign looking) email, they unknowingly leak the plaintext of the encrypted message part(s) back to the attacker.
Metrics
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
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OR
*cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*
*cpe:2.3:a:opensuse:backports_sle:15.0:sp2:*:*:*:*:*:*
*cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
*cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
Changed
CPE Configuration
OR
*cpe:2.3:a:roundcube:webmail:1.3.4:*:*:*:*:*:*:*
OR
*cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:* versions up to (excluding) 1.3.10
Removed
CVSS V3
NIST AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Added
CVSS V3.1
NIST AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Changed
Reference Type
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00083.html No Types Assigned
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00083.html Mailing List, Third Party Advisory
Changed
Reference Type
https://github.com/roundcube/roundcubemail/releases/tag/1.3.10 No Types Assigned
https://github.com/roundcube/roundcubemail/releases/tag/1.3.10 Third Party Advisory
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TFFMSO5WKEYSGMTZPZFF4ZADUJ57PRN5/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TFFMSO5WKEYSGMTZPZFF4ZADUJ57PRN5/ Mailing List, Third Party Advisory
In Roundcube Webmail 1.3.4, an attacker in possession of S/MIME or PGP encrypted emails can wrap them as sub-parts within a crafted multipart email. The encrypted part(s) can further be hidden using HTML/CSS or ASCII newline characters. This modified multipart email can be re-sent by the attacker to the intended receiver. If the receiver replies to this (benign looking) email, they unknowingly leak the plaintext of the encrypted message part(s) back to the attacker.
In Roundcube Webmail before 1.3.10, an attacker in possession of S/MIME or PGP encrypted emails can wrap them as sub-parts within a crafted multipart email. The encrypted part(s) can further be hidden using HTML/CSS or ASCII newline characters. This modified multipart email can be re-sent by the attacker to the intended receiver. If the receiver replies to this (benign looking) email, they unknowingly leak the plaintext of the encrypted message part(s) back to the attacker.