9c8906：2022年广东省中职组“网络空间安全”赛题及赛题解析（超详细） 2024-04-18 06:53:22 0 0 2022年广东省中职组“网络空间安全”赛项模块B解析2022年中职组广东省区竞赛任务书模块 B 基础设施设置与安全加固（1000分）B-1 Apache安全配置B-2 隐写术应用B-3 Python程序渗透B-4 代码渗透测试B-5 信息探索B-6 网页渗透B-7 网络安全数据取证B-8 逆向分析及隐写 2022年中职组广东省区竞赛任务书 一、竞赛时间 总计：360分钟 模块 B 基础设施设置与安全加固（1000分） B-1 Apache安全配置 服务器场景：A-Server 服务器场景操作系统：Linuxs 服务器用户名：root;密码：123456 渗透机操作系统：kali 渗透机用户名：root;密码：123456 1.打开服务器场景，通过命令行清除防火墙规则。在服务器场景上查看apache版本，将查看到的服务版本字符串完整提交； 1.思路：①清空防护墙规则 Iptables -F ②find搜一下apache的具体路径③查看apache有好几种方法 httpd -v或者 apachectl -v 如果不行就进入apache 的bin目录下./apachectl 或者./httpd FLAG：Apache/2.2.23 (Unix) 2.检测服务器场景中此版本apache是否存在显示banner信息漏洞，如果验证存在，修改配置文件将此漏洞进行加固，并重启Apache服务，将此加固项内容字符串(不包含状态)作为Flag提交； 修改ServerSignature为Off，添加ServerTokens Prod service httpd restrat 重启服务 FLAG：ServerSignature 3.检测服务器场景配置是否可以浏览系统目录，如果验证存在将此漏洞在Apache配置文件中进行加固，寻找系统根目录/var/www 的配置属性，对该属性的原内容进行权限删除的方式加固，并重启Apache服务，将此加固项删减字符串作为Flag提交； 打开httpd.conf配置文件，查找“Options Indexes FollowSymLinks”，修改为“Options -Indexes”，然后保存并重启Apache服务生效 FLAG：Indexes 4.合理配置服务器场景apache的运行账户，并在httpd.conf中寻找运行帐户，将本服务配置的账户名称作为Flag提交； 进入配置文件 vi /user/local/apache/conf/httpd.conf 找到apache运行账户 FLAG：nobody 5.配置服务器场景中httpd.conf，限制禁止访问的文件夹，验证是否可以访问 /var/www/data 目录下index.php,如存在在此漏洞需进行加固，将此加固后完整字符串作为Flag提交；（提示：（<Directory /var/www/data>）****号为需要添加内容） 进入配置文件 vi /user/local/apache/conf/httpd.conf FLAG：Deny from all 6.配置服务器场景中httpd.conf，限制一些特殊目录的特定ip访问，如内部接口等。修改对data 目录的配置,重新启动apache 服务。将加固项固定部分作为Flag提交； 进入配置文件 vi /user/local/apache/conf/httpd.conf FLAG：allow from B-2 隐写术应用 1.找出文件夹1中的文件，将文件中的隐藏信息作为flag值提交； 使用foremost 分离 然后使用StegSolve 查看red 通道 发现存在隐写 最后得到了flag。 FLAG：ISG{E4sY_StEg4n0 gR4pHy} 2.找出文件夹2中的文件，将文件中的隐藏信息作为flag值提交； 可以看到在图片末尾有一个倒着写的PNG三个字符 对应HEX编码为 89 50 4E 47 0D 0A 为PNG文件的头标志 对应的结束标识为IEND HEX编码为 49 45 4E 44 在文件中直接搜索IEND是搜不到的 因为是倒序的 然后搜索DNEI 写个python脚本把他反过来：s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v = ""for i in range(0,len(s),2): v+=s[len(s)-i-2:len(s)-i] # 两两一组 进行倒序输出print(v) 新建一个WinHex文件 ：把这一串放进去另存为 png 图片即可。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：flag{Mirr0r_ R3f3ct1on_ H1dd3n _f14g} 3.找出文件夹3中的文件，将文件中的隐藏信息作为flag值提交； 如果我没记错的话 这是攻防世界的原题 是一个gif的动图 这里需要 分解 然后进行拼接 使用工具 convert 和montageapt-get update apt-get install imagemagick convert glance.gif flag.png #分解montage flag-*.png -tile x1 -geometry +0+0 test.png #拼接-tile指列和行数-gemometry指拼接图片的尺寸0默认尺寸 TWCTF{Bliss By Charles O'Rear} 4.找出文件夹4中的文件，将文件中的隐藏信息作为flag值提交； 是一个gif的文件 但是打不开 猜测没有数据头 需要手动添加：47 49 46 38 39 61 identify -format "%T\n" '/root/桌面/100_KHf05OI.gif' >>test.txt-format 提取每一帧的间隔并进行转化 文档内容有66、20、10将文件开头的66删除 将20替换0,10替换1 执行脚本获取flag# coding:utf-8import redef file(): with open('test.txt','r') as f: binfile = (f.read()).replace("\n","") bindata = re.findall(r'.{8}',binfile) for i in bindata: ascii = int(i,2) print(chr(ascii))file() FLAG：XMAN{96575beed4dea18ded4735643aecfa35} 5.找出文件夹5中的文件，将文件中的隐藏信息作为flag值提交。 是一个exe 文件放入 WinHex 发现是PNG格式的 修改后缀。 得到一只猫里面有个二维码 直接QR 扫一下 得到flag。 pyseclab{wizc_5438sdh8_k} B-3 Python程序渗透 1.从靶机服务器的FTP上下载weak_password.py，编辑Python程序，使该程序实现弱口令爆破，填写该文件当中空缺的F1字符串，生成密码列表 F1 ：i.strip() for i in fp 2.编辑Python程序weak_password.py，使该程序实现弱口令爆破，填写该文件当中空缺的F2字符串，填写连接的host； F2 : target_ip 3.编辑Python程序weak_password.py，使该程序实现弱口令爆破，填写该文件当中空缺的F3字符串，填写连接的密码； F3 : i 4.编辑Python程序weak_password.py，使该程序实现弱口令爆破，填写该文件当中空缺的F4字符串，写出连接失败的处理逻辑； F4 ：continue 5.编辑Python程序weak_password.py，使该程序实现弱口令爆破，填写该文件当中空缺的F5字符串，写出连接成功的处理逻辑； F5 :break 6.编辑Python程序weak_password.py，使该程序实现弱口令爆破，填写该文件当中空缺的F6字符串，写出判断result的值即可知道是否爆破成功； F6 :result_pwd B-4 代码渗透测试 1.从靶机服务器的FTP上下载flag0072，分析该文件，请提交代码保护技术的类型。提交格式：XXXX。 拿到下来是一个二进制程序，恶心的很 只能拖进IDA里分析 Main函数里用scanf读取了我们一个输入，然后跳入decrypt函数中，可以分析出是SMC算法 FLAG：SMC 2.提交被保护的代码所在地址。提交格式： 0xXXXX。 看看decrypt函数要对谁操作，就是谁了是check，答案就是check函数的地址 FLAG：0x401500 3.提交代码解密的密钥。提交格式： 0xXX。 分析算法发现是很简单的异或加密 那密钥当然就是跟他异或的对象，即0xAAu U代表无符号，答案中直接舍弃 FLAG：0xAA 4.请提交输入正确flag时的输出。提交格式： XXXX。 SHIFT+F12可以看到输出字符串 字符串一般直接存在程序中，要不就是bbs段要不就是.text段，直接换hex找就找到了 FLAG：You are Right! 5.提交flag的值。提交格式：XXXX。 通过idc脚本对此加密段进行解密后使用动态调试即可看到加密的代码 str = "gm`fzpRghvp71iB97DHRW|"flag = ""q = 0for i in str: flag += chr(ord(str[q]) ^ 1) q += 1print(flag) FLAG：{qSfiwq60hC86EISV} B-5 信息探索 1.访问服务器的FTP服务，下载图片QR，从图片中获取flag，并将flag提交； 使用画图工具排序 QR扫码得到base64 解码得到flag。 flag{xqFcT59a7iQw} 2.访问服务器的FTP服务，下载文件document，从文件中获取flag，并将flag提交； 是一个doc文件 打开乱码 放入HxD 中发现是 zip文件 放入kali strings theme1.xml | grep "flag" FLAG: RFCXQ0gy 3.访问服务器的FTP服务，下载图片beach，从图片中获取flag，并将flag提交； 直接使用foremost 分离 得到一个 压缩包文件和一个图片 放入010editor中发现了一串Base64编码然后进行解码 比赛的时候没网所以最好在kali中完成 得到密码打开flag.txt即可。 FLAG: flag{nfzgVNXCxibcjxn1} 4.访问服务器的FTP服务，下载图片grass，从图片中获取flag，并将flag提交； 使用foremost 分离 然后 直接打开压缩包就看到flag了。 FLAG: flag{IYS9FWWLY4ACf1o8} 5.访问服务器的FTP服务，下载图片tree，从图片中获取flag，并将flag提交； FLAG: SwNgVibDLP 6.访问服务器的FTP服务，下载压缩文件style，从压缩文件中获取flag，并将flag提交。 压缩包放入kali 使用unrar 解压 foremost 进行分离 得到部分flag 以此类推 把所有图片都这样 操作一下 最好在进行拼接即可。 FLAG: flag{7y6KwTAnYC02Z3a0} B-6 网页渗透 1.访问服务器网站目录1，根据页面信息完成条件，将获取到的flag提交； 抓包，改为ERROR 放包，flag值就出来了 FLAG：zTdKVpUKJu 2.访问服务器网站目录2，根据页面信息完成条件，将获取到的flag提交； 添加：X-Forwarded-For:192.168.1.1放包flag值就出来了 FLAG：6i3zXHDPOx 3.访问服务器网站目录3，根据页面信息完成条件，将获取到的flag提交； 抓包在id=1上添加’ or ‘1’ or ‘1 --+ FLAG：7Z9hwFpOlf 4.访问服务器网站目录4，根据页面信息完成条件，将获取到的flag提交； 抓包在id=1上添加”) or 1=1 --+放包flag值就出来了 FLAG：YbR0BIQEVo 5.访问服务器网站目录5，根据页面信息完成条件，将获取到的flag提交； 在URL里输入id=10%27 oorr%20 1=1 --+flag值就出来了 FLAG：rNPco4KBLN 6.访问服务器网站目录6，根据页面信息完成条件，将获取到的flag提交； 在kali编写代码并执行 flag值就出来了 FLAG：C9K8TVwf7Z B-7 网络安全数据取证 1.从靶机服务器的FTP上下载results.pcap，分析该文件，将数据包内图片数量作为FLAG提交。 导出http流 类型选image/jpeg 然后另存为 查看属性对象 即可 421个，但是有3个html文件所以要剪掉。 FLAG：418 2.对results.pcap数据包文件进行分析，将图片内隐藏的内容作为FLAG提交。 使用命令：exiftool -* | grep flag flag{ae58d0408e26e8f 3.对results.pcap数据包文件进行分析，将额外信息文件的关键词作为FLAG提交； 使用过滤规则：tcp contains "Exif" FLAG：26a3c0589d23edeec} 4.对results.pcap数据包文件进行分析，将过滤语句作为FLAG提交；(不包含空格) FLAG：tcp.stream eq 114 5.对results.pcap数据包文件进行分析，将数据包内完成字符作为FLAG提交； FLAG：flag{ae58d0408e26e8f26a3c0589d23edeec} B-8 逆向分析及隐写 1.对靶机服务器场景桌面上的PE01.exe二进制文件进行静态调试，将main函数的入口地址作为Flag值提交； 搜索main函数跟进就能看到主函数地址 WinMain的汇编窗口第一行mov即是入口 00007FF771791000 2.对靶机服务器场景桌面上的PE01.exe二进制文件进行静态调试，将该二进制文件中检查许可证的关键函数作为Flag值提交； **找到此字符串交叉引用到代码部分 ** 分析上面的代码可以知道，string为input输入,而sub_7FF7717916A0将你的输入传进去做了一次加密，如果返回不等于1，将输出wrong,所以sub_7FF7717916A0就是检查许可证的关键函数 3.对靶机服务器场景桌面上的PE01.exe二进制文件进行静态调试，找到Flag值并提交； 本地动态调试后在此处下断点查看lptext 注意下 这里 IDA 的版本不一样所以函数名有点不一样 按照比赛的来 4.对靶机服务器场景桌面上的PE01.exe二进制文件进行静态调试，尝试破解该二进制文件，将注册成功后的回显信息作为Flag值提交； 搜索字符，可能是字符串的hello 答案也不确定是不是 比赛的时候 可以试一下 5.对靶机服务器场景桌面上的PE01.exe二进制文件进行静态调试，将该激活所需的许可证码作为Flag值提交； 逆向一下这个检测算法就能得到序列号，检测算法就是第二题的那个函数 跟进if判断的数组将最终结果提取出来 再将上面进行异或操作的数组提取出来，放到脚本中逆向算法解密 得到序列号：2o22_Ch1n@Ski1ls! 收藏（0）