漏洞信息
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Vulnerability Title
WeKan Board Export REST Endpoints: NULL Pointer Dereference on Invalid authToken Leads to Uncaught Exception / Remote Denial of Service
Vulnerability Description
Wekan is open source kanban built with Meteor. Prior to 10.38, the /api/boards/:boardId/export, /api/boards/:boardId/attachments/:attachmentId/export, /api/boards/:boardId/export/csv, and /api/boards/:boardId/exportExcel handlers in models/export.js and models/exportExcel.js looked up a user from the attacker-controlled authToken query parameter and immediately called user._id.toString() without checking whether ReactiveCache.getUser() returned undefined. A request for a private board with an unknown token therefore threw a TypeError from an asynchronous route, producing an unhandled rejection that could terminate the Wekan process and deny service to all users. Version 10.38 adds a 401 guard after every export token lookup and wraps export handlers with safeRoute() so unexpected exceptions become controlled responses. This issue is fixed in version 10.38.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vulnerability Type
空指针解引用
Vulnerability Title
WeKan 异常处理不当漏洞
Vulnerability Description
WeKan是WeKan团队的一款项目管理软件。 WeKan 10.38之前版本存在异常处理不当漏洞,该漏洞源于在models/export.js和models/exportExcel.js中未检查ReactiveCache.getUser()返回值,攻击者可通过受控的authToken查询参数触发,可能导致进程终止并拒绝服务。
CVSS Information
N/A
Vulnerability Type
N/A