SentryPeer v4.0.5

#### SentryPeer Node에서 SentryPeerHQ로```mermaid
sequenceDiagram
    actor A as Attacker
    participant S as SentryPeer Node
    participant DS as Data Store
    participant HQ as SentryPeerHQ
    Note over DS: sqlite/json log/syslog (if enabled)
    Note over HQ: OAuth2 creds required.<br/> if using https://sentrypeer.com
    A->>S: SIP probe OPTIONS/REGISTER/etc
    S->>DS: Save event
    S->>HQ: Send event
    HQ->>S: 201 Created
    S->>A: 200 OK
    A->>S: INVITE sip:00046500729221@

#### 자체 시스템과 통합하기```mermaid
sequenceDiagram
    participant D as Device
    participant P as PBX/ITSP/Carrier
    participant HQ as SentryPeer Node/HQ API
    participant N as NOC
    Note over P: Integration with <br/>SentryPeer needed
    Note over N: Consumes alerts
    Note over HQ: OAuth2 creds required<br/> if using SentryPeerHQ
    Note over P,HQ: API rate limiting if using SentryPeerHQ
    D->>P: SIP INVITE
    P->>HQ: Have you seen attackers call this number?
    HQ->>P: Yes, this has been seen on SentryPeer Nodes
    HQ->>N: WebHook/Email/Slack
    Note over HQ,N: Only if using SentryPeerHQ
    P->>D: I'm blocking this call. Sorry

sudo docker build --no-cache -t sentrypeer .
sudo docker run -d -p 5060:5060/tcp -p 5061:5061/tcp -p 5060:5060/udp -p 8082:8082 -p 4222:4222/udp sentrypeer:latest

ENV SENTRYPEER_CONFIG_FILE=/my/location/sentrypeer.toml
ENV SENTRYPEER_DB_FILE=/my/location/sentrypeer.db
ENV SENTRYPEER_API=1
ENV SENTRYPEER_WEBHOOK=1
ENV SENTRYPEER_WEBHOOK_URL=https://my.webhook.url/events
ENV SENTRYPEER_OAUTH2_CLIENT_ID=1234567890
ENV SENTRYPEER_OAUTH2_CLIENT_SECRET=1234567890
ENV SENTRYPEER_SIP_RESPONSIVE=1
ENV SENTRYPEER_SIP_DISABLE=1
ENV SENTRYPEER_SYSLOG=1
ENV SENTRYPEER_PEER_TO_PEER=1
ENV SENTRYPEER_BOOTSTRAP_NODE=mybootstrapnode.com
ENV SENTRYPEER_JSON_LOG=1
ENV SENTRYPEER_JSON_LOG_FILE=/my/location/sentrypeer_json.log
ENV SENTRYPEER_VERBOSE=1
ENV SENTRYPEER_DEBUG=1
ENV SENTRYPEER_CERT=/my/location/sentrypeer-crt.pem
ENV SENTRYPEER_KEY=/my/location/sentrypeer-key.pem
ENV SENTRYPEER_TLS_LISTEN_ADDRESS=0.0.0.0:5061

이 값을 설정하지 않으면 sentrypeer가 실행되는 디렉터리에 `cert.pem`과 `key.pem` 파일을 생성하여 localhost용 인증서가 자동으로 생성됩니다.

### 설치

Debian 또는 Fedora 패키지는 현재 SentryPeer 버전의 릴리즈 페이지에서 항상 사용할 수 있습니다:

   https://github.com/SentryPeer/SentryPeer/releases

#### Homebrew (macOS 또는 Linux):

이 프로젝트를 위한 [Homebrew Tap](https://github.com/SentryPeer/homebrew-sentrypeer)이 있습니다 (더 널리 알려질 때까지):

    brew tap sentrypeer/sentrypeer
    brew install sentrypeer

#### Alpine Linux:

SentryPeer는 [Alpine Linux 테스트 저장소](https://gitlab.alpinelinux.org/alpine/aports/-/tree/master/testing/sentrypeer)에 있습니다. 다음 명령어로 설치할 수 있습니다:

    apk -U add --no-cache -X https://dl-cdn.alpinelinux.org/alpine/edge/testing sentrypeer

#### Ubuntu 패키지

[Ubuntu PPD](https://launchpad.net/~gavinhenry/+archive/ubuntu/sentrypeer)에서 SentryPeer를 설치할 수 있습니다. 현재 Ubuntu 20 LTS (Focal Fossa)용입니다:

    sudo apt install software-properties-common
    sudo add-apt-repository ppa:gavinhenry/sentrypeer
    sudo apt-get update

이 PPA는 아래 줄을 복사하여 시스템의 소프트웨어 소스에 수동으로 추가할 수 있습니다:

    deb https://ppa.launchpadcontent.net/gavinhenry/sentrypeer/ubuntu focal main 
    deb-src https://ppa.launchpadcontent.net/gavinhenry/sentrypeer/ubuntu focal main

그런 다음 SentryPeer를 설치할 수 있습니다:

    sudo apt-get install sentrypeer

#### 소스에서 빌드

소스에서 설치하기 위한 두 가지 옵션이 있습니다: CMake 또는 autotools. 현재는 autotools를 권장합니다. 릴리즈는 autotools 빌드입니다.

Fedora 사용자라면 [Fedora copr](https://copr.fedorainfracloud.org/coprs/)을 통해 설치할 수 있습니다:

[https://copr.fedorainfracloud.org/coprs/ghenry/SentryPeer/](https://copr.fedorainfracloud.org/coprs/ghenry/SentryPeer/)

이 저장소에서 빌드하려면 다음이 설치되어 있어야 합니다:

  - `git`, `autoconf`, `automake` 및 `autoconf-archive` (Debian/Ubuntu)
  - `libtool`, `rustc` 및 `cargo` (Fedora)
  - `libosip2-dev` (Debian/Ubuntu) 또는 `libosip2-devel` (Fedora)
  - `libsqlite3-dev` (Debian/Ubuntu) 또는 `sqlite-devel` (Fedora)
  - `uuid-dev` (Debian/Ubuntu) 또는 `libuuid-devel` (Fedora)
  - `libmicrohttpd-dev` (Debian/Ubuntu) 또는 `libmicrohttpd-devel` (Fedora)
  - `libjansson-dev` (Debian/Ubuntu) 또는 `jansson-devel` (Fedora)
  - `libpcre2-dev` (Debian/Ubuntu) 또는 `pcre2-devel` (Fedora)
  - `libcurl-dev` (Debian/Ubuntu) 또는 `libcurl-devel` (Fedora)
  - `libcmocka-dev` (Debian/Ubuntu) 또는 `libcmocka-devel` (Fedora) - 단위 테스트용

Debian/Ubuntu:

    sudo apt-get install git build-essential clang autoconf-archive autoconf \
    automake libtool cmake libosip2-dev libsqlite3-dev libcmocka-dev uuid-dev \
    libcurl4-openssl-dev libpcre2-dev libjansson-dev libmicrohttpd-dev libclang-dev

Fedora:

    sudo dnf install git clang pkg-config autoconf automake autoconf-archive \ 
    libtool libosip2-devel libsqlite3-devel libcmocka-devel libuuid-devel \
    libmicrohttpd-devel jansson-devel libcurl-devel pcre2-devel cmake \
    clang-libs clang

macOS:

    brew install git libtool autoconf automake autoconf-archive libosip cmocka \
    libmicrohttpd jansson curl pcre2 pkg-config opendht ossp-uuid cmake 

Rust:

    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

그런 다음 (make check를 적극 권장합니다):

    ./bootstrap.sh
    ./configure
    make
    make check
    make install

CMake:

    cmake -S . -B build -DUNIT_TESTING=ON
    cmake --build build
    ctest --test-dir build
    cmake --install build

### SentryPeer 실행

빌드가 완료되면 다음과 같이 실행하여 **디버그 모드**로 시작하고, SIP 프로브에 **응답**하며, **RESTful API**를 활성화하고, WebHooks를 활성화하고, syslog 로깅을 활성화할 수 있습니다 ([systemd](https://www.freedesktop.org/wiki/Software/systemd/)를 원한다면 [패키지](https://github.com/SentryPeer/SentryPeer/releases)를 사용하세요):

    ./sentrypeer -draps
    SentryPeer node id: e5ac3a88-3d52-4e84-b70c-b2ce83992d02
    Starting sentrypeer...
    API mode enabled, starting http daemon...
    SIP mode enabled...
    Peer to Peer DHT mode enabled...
    Starting peer to peer DHT mode using OpenDHT-C lib version '2.4.0'...
    Configuring local address...
    Creating sockets...
    Binding sockets to local address...
    Listening for incoming UDP connections...
    SIP responsive mode enabled. Will reply to SIP probes...
    Listening for incoming TCP connections...
    Peer to peer DHT mode started.
    DHT InfoHash for key 'bad_actors' is: 14d30143330e2e0e922ed4028a60ff96a59800ad
    Bootstrapping the DHT
    Waiting 5 seconds for bootstrapping to bootstrap.sentrypeer.org...
    Listening for changes to the bad_actors DHT key


프로브 요청이 들어오면 터미널에서 다음과 같은 내용을 볼 수 있습니다:```bash
Received (411 bytes): OPTIONS sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 91.223.3.152:5173;branch=z9hG4bK-515761064;rport
Content-Length: 0
From: "sipvicious"<sip:[email protected]>;tag=6434396633623535313363340131363131333837383137
Accept: application/sdp
User-Agent: friendly-scanner
To: "sipvicious"<sip:[email protected]>
Contact: sip:[email protected]:5173
CSeq: 1 OPTIONS
Call-ID: 679894155883566215079442
Max-Forwards: 70


read_packet_buf size is: 1024: 
read_packet_buf length is: 468: 
bytes_received size is: 411: 

Bad Actor is:
Event Timestamp: 2021-11-23 20:13:36.427515810
Event UUID: fac3fa20-8c2c-445b-8661-50a70fa9e873
SIP Message: OPTIONS sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 91.223.3.152:5173;branch=z9hG4bK-515761064;rport
From: "sipvicious" <sip:[email protected]>;tag=6434396633623535313363340131363131333837383137
To: "sipvicious" <sip:[email protected]>
Call-ID: 679894155883566215079442
CSeq: 1 OPTIONS
Contact: <sip:[email protected]:5173>
Accept: application/sdp
User-agent: friendly-scanner
Max-forwards: 70
Content-Length: 0


Source IP: 193.107.216.27
Called Number: 100
SIP Method: OPTIONS
Transport Type: UDP
User Agent: friendly-scanner
Collected Method: responsive
Created by Node Id: fac3fa20-8c2c-445b-8661-50a70fa9e873
SentryPeer db file location is: sentrypeer.db
Destination IP address of UDP packet is: xx.xx.xx.xx

#### 엔드포인트 /ip-addresses

SentryPeer가 본 모든 IP 주소를 나열합니다:```bash
curl -v -H "Content-Type: application/json" http://localhost:8082/ip-addresses

* Connected to localhost (127.0.0.1) port 8082 (#0)
> GET /ip-addresses HTTP/1.1
> Host: localhost:8082
> User-Agent: curl/7.79.1
> Accept: */*
> Content-Type: application/json
> 
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< Date: Mon, 24 Jan 2022 11:17:05 GMT
< Content-Type: application/json
< Access-Control-Allow-Origin: *
< X-Powered-By: SentryPeer
< X-SentryPeer-Version: 1.0.0
< Content-Length: 50175
< 
{
  "ip_addresses_total": 396,
  "ip_addresses": [
    {
      "ip_address": "193.107.216.27",
      "seen_last": "2022-01-11 13:30:48.703603359",
      "seen_count":	"1263"
    },
    {
      "ip_address": "193.46.255.152"
      "seen_last": "2022-01-11 13:28:27.348926406",
      "seen_count": "3220"      
    }
    ...
  ]
}

#### Endpoint /numbers 

SentryPeer가 확인한 모든 호출된 번호를 나열합니다:```bash
curl -v -H "Content-Type: application/json" http://localhost:8082/numbers

* Connected to localhost (127.0.0.1) port 8082 (#0)
> GET /numbers HTTP/1.1
> Host: localhost:8082
> User-Agent: curl/8.0.1
> Accept: */*
> Content-Type: application/json
< Date: Thu, 27 Jul 2023 11:10:35 GMT
< Content-Type: application/json
< Access-Control-Allow-Origin: *
< X-Powered-By: SentryPeer
< X-SentryPeer-Version: 4.0.0
< Content-Length: 31746258


 {
  "called_numbers_total": 244850,
  "called_numbers": [
    {
      "called_number": "981046500729221",
      "seen_last": "2023-07-27 12:06:59.388055505",
      "seen_count": "451"
    },
    {
      "called_number": "81046500729221",
      "seen_last": "2023-07-27 12:05:19.206442003",
      "seen_count": "453"
    },
    {
      "called_number": "100",
      "seen_last": "2023-07-27 11:59:57.679798597",
      "seen_count": "17335"
    },
    ....

### Syslog와 Fail2ban

`sentrypeer -s`를 사용하여 syslog를 파싱하고 Fail2Ban을 사용하여 악성 행위자의 IP 주소를 차단합니다:```syslog
Nov 30 21:32:16 localhost.localdomain sentrypeer[303741]: Source IP: 144.21.55.36, Method: OPTIONS, Agent: sipsak 0.9.7

### 명령줄 옵션```bash
./sentrypeer -h
Protect your SIP Servers from bad actors at https://sentrypeer.com

Usage: sentrypeer [OPTIONS]

Options:
  -f <DB_FILE>                 Set 'sentrypeer.db' location or use SENTRYPEER_DB_FILE env
  -j                           Enable json logging or use SENTRYPEER_JSON_LOG env
  -p                           Enable Peer to Peer mode or use SENTRYPEER_PEER_TO_PEER env
  -b <BOOTSTRAP_NODE>          Set Peer to Peer bootstrap node or use SENTRYPEER_BOOTSTRAP_NODE env
  -i <CLIENT_ID>               Set OAuth 2 client ID or use SENTRYPEER_OAUTH2_CLIENT_ID env to get a Bearer token for WebHook
  -c <CLIENT_SECRET>           Set OAuth 2 client secret or use SENTRYPEER_OAUTH2_CLIENT_SECRET env to get a Bearer token for WebHook
  -a                           Enable RESTful API mode or use SENTRYPEER_API env
  -w <WEBHOOK_URL>             Set WebHook URL for bad actor json POSTs or use SENTRYPEER_WEBHOOK_URL env
  -r                           Enable SIP responsive mode or use SENTRYPEER_SIP_RESPONSIVE env
  -R                           Disable SIP mode completely or use SENTRYPEER_SIP_DISABLE env
  -l <JSON_LOG_FILE>           Set JSON logfile (default './sentrypeer_json.log') location or use SENTRYPEER_JSON_LOG_FILE env
  -N                           Disable Rust powered TCP, UDP and TLS or use SENTRYPEER_TLS_DISABLE env
  -t <TLS_CERT_FILE>           Set TLS cert location (default './cert.pem') or use SENTRYPEER_CERT env
  -k <TLS_KEY_FILE>            Set TLS key location (default './key.pem') or use SENTRYPEER_KEY env
  -z <TLS_LISTEN_ADDRESS>      Set TLS listen address (default '0.0.0.0:5061') or use SENTRYPEER_TLS_LISTEN_ADDRESS env
  -g <CONFIG_FILE>             Set config file location or use SENTRYPEER_CONFIG_FILE env
  -s                           Enable syslog logging or use SENTRYPEER_SYSLOG env
  -v                           Enable verbose logging or use SENTRYPEER_VERBOSE env
  -d                           Enable debug mode or use SENTRYPEER_DEBUG env
  -h, --help                   Print help
  -V, --version                Print version

Addresses: FF0X:0:0:0:0:0:0:172
Description: SentryPeer
Contact: Gavin Henry <ghenry at sentrypeer.org>
Registration Date: 2022-01-26