CVE-2017-3898

Livesafe vulnerability

CVSS

5.9

EPSS

3.2%

EPSS pct

87th

Exploited

No known

A man-in-the-middle attack vulnerability in the non-certificate-based authentication mechanism in McAfee LiveSafe (MLS) versions prior to 16.0.3 allows network attackers to modify the Windows registry value associated with the McAfee update via the HTTP backend-response.

Affected vendor

Mcafee

Affected product

Livesafe

CVSS vector

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

Weakness type (CWE)

CWE-20 — Improper Input Validation

Published

2017-09-01

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 integrity.

Its EPSS score of 3.2% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2017-3898

Confirm whether Mcafee Livesafe is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-3898.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-3898

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-3898 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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