THREATPORT/VULNERABILITY/CVE-2023-27855
CRITICAL SEVERITY

CVE-2023-27855

Thinmanager vulnerability

CVSS
9.8
EPSS
13.5%
EPSS pct
96th
Exploited
No known
In affected versions, a path traversal exists when processing a message in Rockwell Automation's ThinManager ThinServer. An unauthenticated remote attacker could potentially exploit this vulnerability to upload arbitrary files to any directory on the disk drive where ThinServer.exe is installed. The attacker could overwrite existing executable files with attacker-controlled, malicious contents, potentially causing remote code execution.
Affected vendor
Rockwellautomation
Affected product
Thinmanager
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2023-03-22

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 confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 13.5% 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-2023-27855

  • Confirm whether Rockwellautomation Thinmanager is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2023-27855.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-27855

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2023-27855 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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