THREATPORT/VULNERABILITY/CVE-2017-17099
HIGH SEVERITY

CVE-2017-17099

Syncbreeze vulnerability

CVSS
7.8
EPSS
11.8%
EPSS pct
96th
Exploited
No known
There exists an unauthenticated SEH based Buffer Overflow vulnerability in the HTTP server of Flexense SyncBreeze Enterprise v10.1.16. When sending a GET request with an excessive length, it is possible for a malicious user to overwrite the SEH record and execute a payload that would run under the Windows SYSTEM account.
Affected vendor
Flexense
Affected product
Syncbreeze
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-119 — Improper Restriction of Operations within Memory Bounds
Published
2017-12-03

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 11.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2017-17099

  • Confirm whether Flexense Syncbreeze is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-17099.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-17099

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