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CVE-2024-49756— AshPostgres 安全漏洞

一分钟漏洞结论

影响对象
ash-project ash_postgres
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

AshPostgres是Ash Framework开源的一个 Ash Framework 的 PostgreSQL 数据层。 AshPostgres 2.0.0至2.4.10之前版本存在安全漏洞，该漏洞源于在特定情况下更新操作的策略可能被跳过，导致不应触发的hooks被执行。

CVSS 5.3 · Medium EPSS 0.51% · P42
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一、 漏洞 CVE-2024-49756 基础信息

漏洞信息
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Vulnerability Title
AshPostgres empty, atomic, non-bulk actions, policy bypass for side-effects vulnerability.
来源: CVE Program / CVE List V5
Vulnerability Description
AshPostgres is the PostgreSQL data layer for Ash Framework. Starting in version 2.0.0 and prior to version 2.4.10, in certain very specific situations, it was possible for the policies of an update action to be skipped. This occurred only on "empty" update actions (no changing fields), and would allow their hooks (side effects) to be performed when they should not have been. Note that this does not allow reading new data that the user should not have had access to, only triggering a side effect a user should not have been able to trigger. To be vulnerable, an affected user must have an update action that is on a resource with no attributes containing an "update default" (updated_at timestamp, for example); can be performed atomically; does not have `require_atomic? false`; has at least one authorizer (typically `Ash.Policy.Authorizer`); and has at least one `change` (on the resource's `changes` block or in the action itself). This is where the side-effects would be performed when they should not have been. This problem has been patched in `2.4.10` of `ash_postgres`. Several workarounds are available. Potentially affected users may determine that none of their actions are vulnerable using a script the maintainers provide in the GitHub Security Advisory, add `require_atomic? false` to any potentially affected update action, replace any usage of `Ash.update` with `Ash.bulk_update` for an affected action, and/or add an update timestamp to their action.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
对外部实体的文件或目录可访问
来源: CVE Program / CVE List V5
Vulnerability Title
AshPostgres 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
AshPostgres是Ash Framework开源的一个 Ash Framework 的 PostgreSQL 数据层。 AshPostgres 2.0.0至2.4.10之前版本存在安全漏洞，该漏洞源于在特定情况下更新操作的策略可能被跳过，导致不应触发的hooks被执行。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商 产品 影响版本 CPE 订阅
ash-project ash_postgres >= 2.0.0, < 2.4.10 -

二、漏洞 CVE-2024-49756 的公开POC

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三、漏洞 CVE-2024-49756 的情报信息

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CVE-2024-49756 其他参考 (1)

IV. Related Vulnerabilities

Same product: ash_postgres
Same vendor: ash-project
Same weakness: CWE-552

V. Comments for CVE-2024-49756

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