linux-mcp-server

Security Findings (80)

• CriticalAS-006

  💻Arbitrary Code Execution

  heuristic signal

  analyze_pkgbuild_safety:tool name or description implies arbitrary script/code execution (evaluate_script, execute javascript, etc.)

  Fix: This tool can execute arbitrary code or shell commands on the host system. Remove it unless strictly required. If kept: (1) restrict access to trusted users/agents only, (2) require human approval before each invocation (Claude Desktop: set approval_required: true; other clients: enable equivalent confirmation), (3) use the most restrictive sandbox or read-only mode available, and (4) never expose this tool to untrusted input sources.

• HighAS-002

  ⚠️Excessive Permissions ×11

  tool declares network permission

  search_archwikisearch_aurinstall_package_secureanalyze_pkgbuild_safetysearch_package_filesget_latest_newstest_mirror_speedanalyze_pacman_confget_parallel_downloads_setting

  tool declares exec permission

  analyze_pkgbuild_safetyanalyze_package_metadata_risk

  Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

• HighAS-005

  🔐Privilege Escalation ×4

  tool description suggests privilege escalation: "sudo"

  install_package_secureremove_packageremove_packages_batchremove_orphans

  Fix: Restrict OAuth/token scopes to the minimum necessary. Remove admin, :write wildcards, and any description-level escalation signals (sudo, impersonate).

• MediumAS-002

  ⚠️Excessive Permissions ×13

  tool declares fs permission

  check_updates_dry_runremove_packageremove_packages_batchremove_orphansfind_package_ownerlist_package_filessearch_package_filesverify_package_integritycheck_disk_spaceget_news_since_last_update

  tool declares db permission

  search_package_filesget_database_sync_historycheck_database_freshness

  Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

• LowAS-011

  ℹ️Missing Rate-Limit / Timeout ×10

  tool performs network or execution operations but declares no rate-limit, timeout, or retry configuration

  search_archwikisearch_aurinstall_package_secureanalyze_pkgbuild_safetyanalyze_package_metadata_risksearch_package_filesget_latest_newstest_mirror_speedanalyze_pacman_confget_parallel_downloads_setting

  Fix: Declare explicit rate-limit, timeout, and retry configuration for all network and execution tools. Implement exponential back-off and surface resource state to the calling agent.

• InfoAS-014

  ℹ️Dependency Inventory Unavailable ×41

  Tool did not expose metadata.dependencies or repo_url, so supply-chain coverage is limited.

  search_archwikisearch_aurget_official_package_infocheck_updates_dry_runinstall_package_secureanalyze_pkgbuild_safetyanalyze_package_metadata_riskremove_packageremove_packages_batchlist_orphan_packagesremove_orphansfind_package_ownerlist_package_filessearch_package_filesverify_package_integritylist_package_groupslist_group_packageslist_explicit_packagesmark_as_explicitmark_as_dependencyget_system_infocheck_disk_spaceget_pacman_cache_statscheck_failed_servicesget_boot_logsget_latest_newscheck_critical_newsget_news_since_last_updateget_transaction_historyfind_when_installedfind_failed_transactionsget_database_sync_historylist_active_mirrorstest_mirror_speedsuggest_fastest_mirrorscheck_mirrorlist_healthanalyze_pacman_confanalyze_makepkg_confcheck_ignored_packagesget_parallel_downloads_settingcheck_database_freshness

  Fix: Review and remediate the identified issue.