我正进入(状态SUBSCRIPTION_JSON来自客户端,我将其转换为字符串,然后使用 gson 库将其设置为模型对象。在 Fortify security 上运行代码时,下面的代码出现 Json 注入错误,并显示以下消息:
这是错误:
On line 159 of ActionHelper.java, the method jsonToObject() writes unvalidated input into JSON. This call could allow an attacker to inject arbitrary elements or attributes into the JSON entity.The method writes unvalidated input into JSON. This call could allow an attacker to inject arbitrary elements or attributes into the JSON entity.
Explanation
JSON injection occurs when:
1. Data enters a program from an untrusted source.
In this case the data enters at getString() in **SubscriptionAction.java** at line 355.
2. The data is written to a JSON stream.
In this case the JSON is written by fromJson() in **ActionHelper.java** at line 159.
订阅操作.java
final String subscriptionJson = subscriptionForm.getString(SUBSCRIPTION_JSON);
ActionHelper.java
public static <T> T jsonToObject(final String jsonString, final Class<T> className) {
T object = null;
if (StringUtils.isNotBlank(jsonString)) {
final Gson gson = (Gson) BeanLocator.getInstance().getBean(GSON);
object = gson.fromJson(jsonString, className);
}
return object;
}
SUBSCRIPTION_JSON ->
{
"subscriptions": [{
"attributeId": "1",
"items": [{
"strId": "ALL",
"nodeType": "G"
}, {
"strId": "VO_ENTRY_TIMING_DELAY",
"nodeType": "L"
}, {
"strId": "O_INVALID",
"nodeType": "L"
}, {
"strId": "O_LINE_INVALID",
"nodeType": "L"
}, {
"strId": "V_INVALID",
"nodeType": "L"
}, {
"strId": "V_ADDRESS_INVALID",
"nodeType": "L"
}]
}, {
"attributeId": "2001",
"items": [{
"strId": "OSTBU",
"nodeType": "L"
}]
}]
}