THREATPORT/VULNERABILITY/CVE-2016-7191
HIGH SEVERITY

CVE-2016-7191

Azure Active Directory Passport vulnerability

CVSS
8.1
EPSS
29.4%
EPSS pct
98th
Exploited
No known
The Microsoft Azure Active Directory Passport (aka Passport-Azure-AD) library 1.x before 1.4.6 and 2.x before 2.0.1 for Node.js does not recognize the validateIssuer setting, which allows remote attackers to bypass authentication via a crafted token.
Affected vendor
Microsoft
Affected product
Azure Active Directory Passport
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-287 — Improper Authentication
Published
2016-09-28

Risk analysis

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

Its EPSS score of 29.4% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2016-7191

  • Confirm whether Microsoft Azure Active Directory Passport is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2016-7191.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2016-7191

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2016-7191 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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