PT-2016-2731 · Microsoft · Outlook

Published 2016-09-13 · Updated 2021-08-30 · CVE-2016-3366

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions Microsoft Outlook versions 2007 SP3 through 2016 for Mac

Description The issue is related to the incorrect implementation of the requirements of the RFC 2046 document in Microsoft Outlook. This can be exploited by a remote attacker to bypass virus or spam detection systems using specially crafted MIME data in an email attachment. The vulnerability occurs because Microsoft Outlook does not strictly adhere to RFC 2046 and improperly identifies the end of a MIME attachment, which may cause antivirus or antispam scanning to not work as intended.

Recommendations For Microsoft Outlook versions 2007 SP3 through 2016 for Mac, update to a version that properly implements RFC 2046 to prevent bypassing of virus or spam detection via crafted MIME data in an email attachment. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

BDU:2016-02133

CVE-2016-3366

Affected Products

Outlook

References · 8

• https://osv.dev/vulnerability/CVE-2016-3366 · Vendor Advisory
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-107 · Vendor Advisory
• https://bdu.fstec.ru/vul/2016-02133 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2016-3366 · Security Note
• https://t.me/cvenotify/20354 · Telegram Post
• http://technet.microsoft.com/security/bulletin/MS16-107 · Note
• http://securityfocus.com/bid/92831 · Note
• http://securitytracker.com/id/1036785 · Note