CVE-2019-0559

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CVE

An information disclosure vulnerability exists when Microsoft Outlook improperly handles certain types of messages, aka

An information disclosure vulnerability exists when Microsoft Outlook improperly handles certain types of messages, aka "Microsoft Outlook Information Disclosure Vulnerability." This affects Office 365 ProPlus, Microsoft Office, Microsoft Outlook.

MEDIUM · CVSS 6.5 EPSS 0.20965

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EPSS ≥ 0.10 - elevated exploitation probability
EPSS percentile: top 4% of all CVEs by exploitation likelihood

Sigma rules16 YARA rules0

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Affected Products & Versions

microsoft officeall versions
microsoft office 365 proplusall versions
microsoft outlookall versions

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Sigma Hunt Rules

Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.

producthighSuspicious Microsoft Office Child Process - MacOS

producthighCode Executed Via Office Add-in XLL File

producthighPotential Persistence Via Microsoft Office Add-In

producthighPotential Persistence Via Microsoft Office Startup Folder

producthighFile With Uncommon Extension Created By An Office Application

producthighOffice Macro File Creation From Suspicious Process

Show all 16 top matchesproducthighUncommon File Created In Office Startup Folder
producthighPotentially Suspicious Office Document Executed From Trusted Location
producthighSuspicious File Created in Outlook Temporary Directory
producthighSuspicious Outlook Macro Created
producthighPotential Persistence Via Outlook Form
producthighSuspicious Execution From Outlook Temporary Folder
producthighSuspicious Remote Child Process From Outlook
producthighSuspicious Outlook Child Process
producthighOutlook EnableUnsafeClientMailRules Setting Enabled
producthighPotential Persistence Via Outlook LoadMacroProviderOnBoot Setting

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Scoring & Timeline

6.5

MEDIUM · CVSS v3.0 · secure@microsoft.com

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Attack Vector

Network Adjacent Local Physical

Attack Complexity

Low High

Privileges Required

None Low High

User Interaction

None Required

Scope

Unchanged Changed

Confidentiality

None Low High

Integrity

None Low High

Availability

None Low High

Published to NVD08 Jan 2019 · 09:29 PM

CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

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Vendor Advisories

msrcCVE-2019-0559Information Disclosure

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References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://www.securityfocus.com/bid/106397Third Party AdvisoryVDB Entry

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0559PatchVendor Advisory

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