CVE-2018-0924

Exchange Server vulnerability

CVSS

6.5

EPSS

8.2%

EPSS pct

94th

Exploited

No known

Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 20, Microsoft Exchange Server 2013 Cumulative Update 18, Microsoft Exchange Server 2013 Cumulative Update 19, Microsoft Exchange Server 2013 Service Pack 1, Microsoft Exchange Server 2016 Cumulative Update 7, and Microsoft Exchange Server 2016 Cumulative Update 8 allow an information disclosure vulnerability due to how URL redirects are handled, aka "Microsoft Exchange Information Disclosure Vulnerability". This CVE is unique from CVE-2018-0941.

Affected vendor

Microsoft

Affected product

Exchange Server

CVSS vector

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

Weakness type (CWE)

CWE-601 — Open Redirect

Published

2018-03-14

Risk analysis

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

Its EPSS score of 8.2% 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-2018-0924

Confirm whether Microsoft Exchange Server is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2018-0924.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-0924

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-0924 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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