CVE-2018-12571

Forefront Unified Access Gateway vulnerability

CVSS

9.8

EPSS

30.3%

EPSS pct

98th

Exploited

No known

uniquesig0/InternalSite/InitParams.aspx in Microsoft Forefront Unified Access Gateway 2010 allows remote attackers to trigger outbound DNS queries for arbitrary hosts via a comma-separated list of URLs in the orig_url parameter, possibly causing a traffic amplification and/or SSRF outcome.

Affected vendor

Microsoft

Affected product

Forefront Unified Access Gateway

CVSS vector

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

Weakness type (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

Published

2018-07-05

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low 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 30.3% 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-2018-12571

Confirm whether Microsoft Forefront Unified Access Gateway is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2018-12571.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-12571

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-12571 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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