SSRF in Microsoft Active Directory Federation Services

CVE-2018-16794

Microsoft ADFS 4.0 Windows Server 2016 and previous (Active Directory Federation Services) has an SSRF vulnerability via the txtBoxEmail parameter in /adfs/ls.

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.080 (94.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
  • cve@mitre.org (mailing-list, Exploit, x_refsource_FULLDISC, Mailing List, Third Party Advisory)
  • cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (mailing-list, Exploit, x_refsource_BUGTRAQ, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2018-16794?
CVE-2018-16794 is a high-severity vulnerability in Microsoft Active Directory Federation Services, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2018-09-18.
How severe is CVE-2018-16794?
High severity. CVSS v3 base score is 8.6 out of 10.
Is CVE-2018-16794 known to be exploited?
6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.