--- title: "Astro's server source code is exposed to the public if sourcemaps are enabled" system_id: "astro" category: "frameworks" advisory_mode: "core" published_date: "2024-12-19T15:12:33Z" updated_date: "2025-11-27T08:18:38.026555Z" severity: "medium" exploit_status: "unknown" source_confidence: "official" verification_status: "triage-manual" verification_mode: "synthetic" artifact_mode: "synthetic" last_run_id: "" target_types: - "lab-local" - "lab-public" - "authorized-third-party" allow_public_validation: "yes, with ownership or explicit authorization" authorization_prerequisite: "asset ownership proof or explicit written authorization" minimal_validation: "read-only probe, controlled payload, reversible test" aliases: - "CVE-2024-56159" - "GHSA-49w6-73cw-chjr" affected_versions: - "introduced=5.0.0-alpha.0, fixed<5.0.8" - "introduced=0, fixed<4.16.18" fixed_versions: - "5.0.8" - "4.16.18" entity_refs: - "astro:system:root-system" - "astro--project--astro:project:affected-component" secure_code_topics: - "authz-server-side-recheck" - "csp-trusted-types" - "dependency-upgrade-policy" primary_source: "https://github.com/withastro/astro/security/advisories/GHSA-49w6-73cw-chjr" --- # Astro's server source code is exposed to the public if sourcemaps are enabled ## 本地实证状态 - 实证状态: `triage-manual` - 实证方式: `synthetic` - Artifact 模式: `synthetic` - 最近运行: `-` - 浏览器证据: `missing` - Run Bundle: `-` ## 事件层 - Canonical ID: `astro--CVE-2024-56159` - 系统: `astro` - 严重度: `medium` - 来源置信度: `official` - 官方主源: https://github.com/withastro/astro/security/advisories/GHSA-49w6-73cw-chjr - 影响版本: `introduced=5.0.0-alpha.0, fixed<5.0.8, introduced=0, fixed<4.16.18` - 修复版本: `5.0.8, 4.16.18` ## 对象与版本映射 - Advisory Scope: `package` - 影响对象: `astro` - Entity Refs: `astro, astro--project--astro` - 版本置信度: `high` - 版本缺口: `-` - 版本证据源: `https://github.com/withastro/astro/security/advisories/GHSA-49w6-73cw-chjr, https://nvd.nist.gov/vuln/detail/CVE-2024-56159, https://github.com/withastro/astro/issues/12703, https://github.com/withastro/astro/commit/039d022b1bbaacf9ea83071d27affc5318e0e515, https://github.com/withastro/astro/commit/c879f501ff01b1a3c577de776a1f7100d78f8dd5` ## 受控验证流程 - Workflow ID: `astro--CVE-2024-56159--workflow` - 漏洞家族: `file-upload` - 入口面: `upload-or-import-surface` - 需要角色: `authenticated-uploader` - 触发向量: 对 `file-upload` 家族入口投递最小化、可审计、可回滚的受控输入，比较修复前后差异。 - 请求/页面入口: `/upload, /import, /plugin/install` - 输入形态: 提交受控非执行样本，验证扩展名、MIME、落盘与执行权限。 - 预期不安全行为: 上传样本被错误接受、可访问或位于可执行路径。 ## 其他来源 - https://nvd.nist.gov/vuln/detail/CVE-2024-56159 - https://github.com/withastro/astro/issues/12703 - https://github.com/withastro/astro/commit/039d022b1bbaacf9ea83071d27affc5318e0e515 - https://github.com/withastro/astro/commit/c879f501ff01b1a3c577de776a1f7100d78f8dd5 - https://github.com/getsentry/sentry-javascript/blob/develop/packages/astro/src/integration/index.ts#L50 - https://github.com/withastro/astro - https://github.com/withastro/astro/blob/176fe9f113fd912f9b61e848b00bbcfecd6d5c2c/packages/astro/src/core/build/static-build.ts#L139 ## 证据点与补丁验证 ### 服务端证据点 - 应用日志中的命中路径、鉴权决策和异常栈 - 反向代理或边界层日志中的请求头、来源 IP 与路由决策 ### 浏览器证据点 - 基线截图与攻击后截图的 DOM/视觉差异 - console、network 与 response metadata 中的异常信号 ### 数据库/文件系统证据点 - 数据库中新增/越权读取的测试数据 - 文件系统中新增上传样本、缓存条目或越权读取痕迹 ### 检测信号 - WAF / reverse proxy 异常日志、访问日志和告警 - 应用审计日志中的权限错误、重定向异常、模板渲染或上传落盘事件 ### 补丁验证步骤 - 确认目标版本从 `introduced=5.0.0-alpha.0, fixed<5.0.8, introduced=0, fixed<4.16.18` 升级或回移到 `5.0.8`。 - 保留同一组受控输入，在修复前后分别执行并比对响应、日志与浏览器证据。 - 确认修复后仅保留预期业务行为，不再触发越权、回显、异常渲染或错误请求。 - 补充 `file-upload` 族自动化回归，避免同类路径在插件、主题或代理链中回归。 ### 实验安全备注 - 只使用回环地址、哨兵目标、无害样本或可回滚测试数据。 - 禁止造成持久破坏、越权下载真实数据或不可回滚 side effect。 - 如需浏览器证据，保留 baseline / proof 两份快照以及 console / network 记录。 ## 实验层 - 仅用于自有资产、测试环境或已明确授权目标。 - 允许公网可达目标，但必须满足资产归属或明确授权前提。 - 最小化验证方式: 最小化验证、只读探测、可审计回显、受控注入。 - 若该案例涉及插件、模块或扩展，应同时检查供应链与升级策略。 - 禁止场景: 无归属证明或无明确授权的公网目标；知名公共网站或与测试无关的第三方资产；会造成持久破坏、数据越权下载或不可回滚影响的动作 ## 修复示例 - [javascript-typescript:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/javascript-typescript/authz-server-side-recheck.md) - [nodejs:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/nodejs/authz-server-side-recheck.md) - [java:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/java/authz-server-side-recheck.md) - [php:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/php/authz-server-side-recheck.md) - [python:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/python/authz-server-side-recheck.md) - [ruby:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/ruby/authz-server-side-recheck.md) - [csharp:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/csharp/authz-server-side-recheck.md) - [go:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/go/authz-server-side-recheck.md) - [javascript-typescript:csp-trusted-types](/Users/x/websafe/05-defense/secure-code/javascript-typescript/csp-trusted-types.md) - [nodejs:csp-trusted-types](/Users/x/websafe/05-defense/secure-code/nodejs/csp-trusted-types.md) - [java:csp-trusted-types](/Users/x/websafe/05-defense/secure-code/java/csp-trusted-types.md) - [php:csp-trusted-types](/Users/x/websafe/05-defense/secure-code/php/csp-trusted-types.md) - [python:csp-trusted-types](/Users/x/websafe/05-defense/secure-code/python/csp-trusted-types.md) - [ruby:csp-trusted-types](/Users/x/websafe/05-defense/secure-code/ruby/csp-trusted-types.md) - [csharp:csp-trusted-types](/Users/x/websafe/05-defense/secure-code/csharp/csp-trusted-types.md) - [go:csp-trusted-types](/Users/x/websafe/05-defense/secure-code/go/csp-trusted-types.md) - [javascript-typescript:dependency-upgrade-policy](/Users/x/websafe/05-defense/secure-code/javascript-typescript/dependency-upgrade-policy.md) - [nodejs:dependency-upgrade-policy](/Users/x/websafe/05-defense/secure-code/nodejs/dependency-upgrade-policy.md) - [java:dependency-upgrade-policy](/Users/x/websafe/05-defense/secure-code/java/dependency-upgrade-policy.md) - [php:dependency-upgrade-policy](/Users/x/websafe/05-defense/secure-code/php/dependency-upgrade-policy.md) - [python:dependency-upgrade-policy](/Users/x/websafe/05-defense/secure-code/python/dependency-upgrade-policy.md) - [ruby:dependency-upgrade-policy](/Users/x/websafe/05-defense/secure-code/ruby/dependency-upgrade-policy.md) - [csharp:dependency-upgrade-policy](/Users/x/websafe/05-defense/secure-code/csharp/dependency-upgrade-policy.md) - [go:dependency-upgrade-policy](/Users/x/websafe/05-defense/secure-code/go/dependency-upgrade-policy.md)