THREATPORT/VULNERABILITY/CVE-2019-1172
MEDIUM SEVERITY

CVE-2019-1172

Windows 10 vulnerability

CVSS
4.3
EPSS
4.0%
EPSS pct
89th
Exploited
No known
An information disclosure vulnerability exists in Azure Active Directory (AAD) Microsoft Account (MSA) during the login request session. An attacker who successfully exploited the vulnerability could take over a user's account. To exploit the vulnerability, an attacker would have to trick a user into browsing to a specially crafted website, allowing the attacker to steal the user's token. The security update addresses the vulnerability by correcting how MSA handles cookies.
Affected vendor
Microsoft
Affected product
Windows 10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Weakness type (CWE)
  • CWE-200 — Exposure of Sensitive Information
Published
2019-08-14

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to low impact to confidentiality.

Its EPSS score of 4.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2019-1172

  • Confirm whether Microsoft Windows 10 is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2019-1172.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-1172

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-1172 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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