CVE intelligence and bounded remediation

CVE-2023-4383 — A vulnerability, which was classified as critical, was found in MicroWorld eScan Anti-Virus 7.0.32 on Linux

High CVSS 7.8

A vulnerability, which was classified as critical, was found in MicroWorld eScan Anti-Virus 7.0.32 on Linux. This affects an unknown part of the file runasroot. The manipulation leads to incorrect execution-assigned permissions. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-237315. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Severity
High
CVSS
7.8 (3.1)
Published
2023-08-16
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-279, CWE-732

Affected products

  • escanav / escan_anti-virus / 7.0.32

Matched remediation archetype

Privilege escalation and unsafe privilege management

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Map service accounts, operating-system identities, roles, capabilities, impersonation, set-user transitions, and administrative helper paths.
  • Determine whether untrusted users or lower-privilege processes can reach the affected transition or modify inputs it trusts.
  • Review file, socket, registry, device, job, container, and cloud-role permissions used before and after privilege changes.

Remediate safely

  • Apply the supported fix and redesign privileged operations as a minimal, authenticated, allowlisted interface.
  • Drop privileges before processing untrusted input, verify the drop succeeds, and remove unnecessary roles, capabilities, and write permissions.
  • Validate ownership and permissions at time of use and add explicit lower-to-higher privilege boundary tests.

Authoritative sources

Complete CVE record and remediation plan

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