CVE intelligence and bounded remediation

CVE-2023-30638 — Atos Unify Openscape Bcf security vulnerability

High CVSS 7.2

Atos Unify OpenScape SBC 10 before 10R3.1.3, OpenScape Branch 10 before 10R3.1.2, and OpenScape BCF 10 before 10R10.7.0 allow remote authenticated admins to inject commands.

Severity
High
CVSS
7.2 (3.1)
Published
2023-04-14
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-77, CWE-94

Affected products

  • atos / unify_openscape_bcf
  • atos / unify_openscape_branch
  • atos / unify_openscape_session_border_controller

Matched remediation archetype

Command, code, expression, and template injection

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

Check exposure

  • Trace untrusted values to process execution, interpreters, evaluators, template engines, dynamic imports, and administrative scripting features.
  • Determine whether the affected path is reachable across each trust boundary and which service account or host privilege it inherits.
  • Review configuration for optional execution features, unsafe compatibility modes, and shell invocation.

Remediate safely

  • Replace string-built commands or evaluated code with fixed operations and structured argument APIs that do not invoke a shell.
  • Use strict allowlists for operation identifiers and reject unexpected input before it reaches any interpreter.
  • Update the affected component and add inert regression tests covering metacharacters, encoding variants, and alternate request paths.

Authoritative sources

Complete CVE record and remediation plan

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