CVE-2014-6336

Exchange Server vulnerability

CVSS

3.5

EPSS

7.1%

EPSS pct

94th

Exploited

No known

Outlook Web App (OWA) in Microsoft Exchange Server 2013 SP1 and Cumulative Update 6 does not properly validate redirection tokens, which allows remote attackers to redirect users to arbitrary web sites and spoof the origin of e-mail messages via unspecified vectors, aka "Exchange URL Redirection Vulnerability."

Affected vendor

Microsoft

Affected product

Exchange Server

CVSS vector

AV:N/AC:M/Au:S/C:N/I:P/A:N

Weakness type (CWE)

CWE-20 — Improper Input Validation

Published

2014-12-11

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring single-factor authentication. Successful exploitation leads to partial impact to integrity.

Its EPSS score of 7.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2014-6336

Confirm whether Microsoft Exchange Server is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2014-6336.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2014-6336

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