CVE-2017-6371

Bbs vulnerability

CVSS

7.5

EPSS

4.7%

EPSS pct

91th

Exploited

No known

Synchronet BBS 3.16c for Windows allows remote attackers to cause a denial of service (service crash) via a long string in the HTTP Referer header.

Affected vendor

Synchro

Affected product

Bbs

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Published

2020-02-27

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 availability.

Its EPSS score of 4.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2017-6371

Confirm whether Synchro Bbs is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-6371.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-6371

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-6371 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2017-6371?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2017-6371.

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