teratail
回答率
85.30%
質問するログイン新規登録
トップに関する質問Apacheでプロセス数が急増しサーバをダウンさせる攻撃

編集履歴

質問編集履歴

3

追記

2019/10/29 05:16

投稿

kitamura472
kitamura472

スコア7

title CHANGED
File without changes
body CHANGED
@@ -15,4 +15,9 @@
15
15
  123.456.789.12 - - [26/Oct/2019:13:12:37 +0900] "GET http://exsample.com HTTP/1.1" 400 226 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
16
16
  123.456.789.12 - - [26/Oct/2019:13:12:37 +0900] "GET http://exsample.com HTTP/1.1" 400 226 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
17
17
  123.456.789.12 - - [26/Oct/2019:13:12:37 +0900] "GET http://exsample.com HTTP/1.1" 400 226 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
18
- 123.456.789.12 - - [26/Oct/2019:13:12:37 +0900] "GET http://exsample.com HTTP/1.1" 400 226 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
18
+ 123.456.789.12 - - [26/Oct/2019:13:12:37 +0900] "GET http://exsample.com HTTP/1.1" 400 226 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
19
+
20
+
21
+
22
+ ---------------------- ご質問に関しての追記 ---------------------
23
+ 犯人が攻撃している部分はindex.htmlであり、ただの静的なページになります。パラメータも付いていない点、PHPなども含まれておらず、apacheかそれよりも前の脆弱性を狙っているものと推測しております。

2

数値を修正

2019/10/29 05:16

投稿

kitamura472
kitamura472

スコア7

title CHANGED
File without changes
body CHANGED
@@ -6,7 +6,7 @@
6
6
 
7
7
  対処方法がわからず途方に暮れている状態でございます。お力添え頂けないでしょうか。
8
8
 
9
- アクセスログには以下のような記録が残ります。1分くらい攻撃を受けると408が400に変わります。(※IPやドメイン名は例です）
9
+ アクセスログには以下のような記録が大量に残ります(1万行くらい)。1分くらい攻撃を受けると408が400に変わります。(※IPやドメイン名は例です）
10
10
 
11
11
  123.456.789.12 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
12
12
  123.456.789.12 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"

1

最初の投稿内容に誤記がありました。

2019/10/29 00:57

投稿

kitamura472
kitamura472

スコア7

title CHANGED
File without changes
body CHANGED
@@ -6,20 +6,13 @@
6
6
 
7
7
  対処方法がわからず途方に暮れている状態でございます。お力添え頂けないでしょうか。
8
8
 
9
- アクセスログには以下のような記録が残ります。(IPやドメイン名は例です）
9
+ アクセスログには以下のような記録が残ります。1分くらい攻撃を受けると408が400に変わります。(※IPやドメイン名は例です）
10
10
 
11
- 123.104.156.15 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
12
- 123.104.156.15 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
13
- 123.104.156.15 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
14
- 123.104.156.15 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
15
- 123.104.156.15 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
16
- 123.104.156.15 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
17
- 123.104.156.15 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
18
- 123.104.156.15 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
19
- 123.104.156.15 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
20
- 123.104.156.15 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
21
- 123.104.156.15 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
22
- 123.104.156.15 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
23
- 123.104.156.15 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
24
- 123.104.156.15 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
25
- 123.104.156.15 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
11
+ 123.456.789.12 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
12
+ 123.456.789.12 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
13
+ 123.456.789.12 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
14
+ 123.456.789.12 - - [26/Oct/2019:13:11:37 +0900] "GET http://exsample.com HTTP/1.1" 408 221 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
15
+ 123.456.789.12 - - [26/Oct/2019:13:12:37 +0900] "GET http://exsample.com HTTP/1.1" 400 226 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
16
+ 123.456.789.12 - - [26/Oct/2019:13:12:37 +0900] "GET http://exsample.com HTTP/1.1" 400 226 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
17
+ 123.456.789.12 - - [26/Oct/2019:13:12:37 +0900] "GET http://exsample.com HTTP/1.1" 400 226 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"
18
+ 123.456.789.12 - - [26/Oct/2019:13:12:37 +0900] "GET http://exsample.com HTTP/1.1" 400 226 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.142 Safari/537.36"