TMA-MCP-1.4
Ensure MCP client and server identity metadata is captured and validated against the asset inventory
Описание
The self-asserted identity metadata that MCP clients and servers exchange is captured and validated against the identities and capability profiles in the enterprise MCP registry. Under the 2026-07-28 revision, a client identifies itself in _meta["io.modelcontextprotocol/clientInfo"] on each request and a server in _meta["io.modelcontextprotocol/serverInfo"] on each response. Both fields carry a name and a version, and both are optional in the schema, so an implementation configured not to send one is still conforming. The specification does not define how a receiver treats a malformed identity value, and handling varies by implementation. This Recommendation therefore never accepts a malformed value as an approved inventory identity and records it as a metadata-validation finding. Server capabilities and supported protocol versions are obtained separately from the server/discover resu...
Как проверяется
Метод проверки: Команда оболочки
cfg="${MCP_CONFIG:-/etc/mcp/server.json}"; [ -f "$cfg" ] || { echo "missing $cfg (set MCP_CONFIG)"; exit 1; }; grep -Eq '"cis_1_4"|"protocolVersion"|"capabilities"|"auth"' "$cfg" && echo compliant || echo "non-compliant: section 1.4"- Ожидаемый вывод
compliant
Как исправляется
Метод исправления: Рекомендация или патч инфраструктуры
Configure the MCP server, the host, or an application-layer gateway able to read the JSON body to record clientInfo from each request and serverInfo from each response into the audit log, with a correlation ID on each entry. The identity travels in the JSON body, not in an HTTP header, so a plain reverse proxy cannot capture it. Configure the approved clients and servers to emit these fields. Both are optional, and supported Tier 1 SDKs commonly send them unless configured otherwise, so confirm nothing has disabled them. Export the approved identities from the registry to two newline-delimited files at the paths the Audit reads, one name|version pair per line, servers in one file and clients in the other, using Unix line endings. Generate the export from the registry rather than by hand, and enforce a registry naming policy that excludes the pipe character, carriage returns, and line breaks so no identity can break the one-pair-per-line format. Run the following script to create the export directory and confirm both exports are well formed: REGDIR="<REGISTRY_DIR>" REG="$REGDIR/approved_identities.txt" CREG="$REGDIR/approved_client_identities.txt" mkdir -p "$REGDIR" missing="" [...
Свойства
- Операционные системы
- Любая
- Теги
- aimcpmcp-server
- Источник
- CIS MCP Server Benchmark v1.0.0 - 1.4 Ensure MCP client and server identity metadata is captured and validated against the asset inventory
Проверить этот хост
Выполните команду на компьютере, аудит которого вам разрешён. Сканирование работает только на чтение.
tmaegis scan --target mcp-server