{"id":28471764,"url":"https://github.com/reverseclabs/fixit","last_synced_at":"2026-02-20T16:32:33.072Z","repository":{"id":292198438,"uuid":"899519867","full_name":"ReversecLabs/fixit","owner":"ReversecLabs","description":null,"archived":false,"fork":false,"pushed_at":"2024-12-11T00:20:14.000Z","size":328,"stargazers_count":2,"open_issues_count":1,"forks_count":2,"subscribers_count":3,"default_branch":"main","last_synced_at":"2025-07-01T22:36:05.963Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"Python","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"apache-2.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/ReversecLabs.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null}},"created_at":"2024-12-06T12:42:28.000Z","updated_at":"2025-06-18T10:07:21.000Z","dependencies_parsed_at":null,"dependency_job_id":"d9048ada-b71e-4dd1-9ef3-64d51622255f","html_url":"https://github.com/ReversecLabs/fixit","commit_stats":null,"previous_names":["reverseclabs/fixit"],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/ReversecLabs/fixit","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ReversecLabs%2Ffixit","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ReversecLabs%2Ffixit/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ReversecLabs%2Ffixit/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ReversecLabs%2Ffixit/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/ReversecLabs","download_url":"https://codeload.github.com/ReversecLabs/fixit/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ReversecLabs%2Ffixit/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":29656966,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-02-20T09:27:29.698Z","status":"ssl_error","status_checked_at":"2026-02-20T09:26:12.373Z","response_time":59,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.6:443 state=error: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2025-06-07T11:08:45.534Z","updated_at":"2026-02-20T16:32:33.067Z","avatar_url":"https://github.com/ReversecLabs.png","language":"Python","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Description\n\nFixit is a CLI application designed to help communicate with FIX-based systems and applications. The purpose of this tool is to facilitate security testing and research activities when reviewing FIX systems without a client application. Fixit allows for the creation, modification, and sending of raw FIX messages.\n\nThis tool includes software developed by the QuickFIX project\n(http://www.quickfixengine.org/).\n\n# Installation / Requirements\n\nThe script requires miltiple libraries. It is advised that it be installed within a python virtual environment:\n```\n$ sudo apt install python3-venv\n$ python3 -m venv fixit_env            \n$ source fixit_env/bin/activate \n(fixit_env) $ python3 -m pip install -r requirements.txt\n```\n\n## Help\n\n```\n$ python ./initiator.py --help\nusage: initiator.py [-h] [--version] [-s \u003cDEFAULT_SESS\u003e] [-u \u003cUSERNAME\u003e] [-p \u003cPASSWORD\u003e]\n                    [-n \u003cNEW PASSWORD\u003e] [-d \u003cFIX_DELIM\u003e] [-S \u003cMESSAGE_STORE\u003e] [-q SEQ_SEED]\n                    [-x EXP_SEQ_SEED] [-f FUZZ_DELAY] [-r RESP_DELAY] [--colour]\n                    [--log_heartbeat] [--verbose] [-P [PRELOAD ...]]\n                    \u003cCONFIG_FILE\u003e\n\nCLI Application for interfacing with a FIX Gateway\n\npositional arguments:\n  \u003cCONFIG_FILE\u003e         FIX initiator configuration file\n\noptions:\n  -h, --help            show this help message and exit\n  --version             show program's version number and exit\n\nSession Configuration:\n  -s \u003cDEFAULT_SESS\u003e, --session \u003cDEFAULT_SESS\u003e\n                        The default FIX session to interact with\n  -u \u003cUSERNAME\u003e, --username \u003cUSERNAME\u003e\n                        FIX session username for authentication\n  -p \u003cPASSWORD\u003e, --password \u003cPASSWORD\u003e\n                        FIX session password for authentication\n  -n \u003cNEW PASSWORD\u003e, --newpassword \u003cNEW PASSWORD\u003e\n                        New password for FIX session\n\nMessage Handling:\n  -d \u003cFIX_DELIM\u003e, --fix_delim \u003cFIX_DELIM\u003e\n                        The delimiter used for FIX message fields\n  -S \u003cMESSAGE_STORE\u003e, --store \u003cMESSAGE_STORE\u003e\n                        Message store file, containing sample messages\n  -q SEQ_SEED, --seq_seed SEQ_SEED\n                        Initial value for message sequence number\n  -x EXP_SEQ_SEED, --exp_seq_seed EXP_SEQ_SEED\n                        Initial value for message sequence number\n\nFuzzing:\n  -f FUZZ_DELAY, --fuzz_delay FUZZ_DELAY\n                        Set the delay between fuzzing messages\n  -r RESP_DELAY, --resp_delay RESP_DELAY\n                        The time to wait for a FIX response\n\nConsole Output:\n  --colour              enables coloured console output\n  --log_heartbeat       Log heartbeat messages by default\n  --verbose             Increase verbosity\n\nPreloaded Commands:\n  -P [PRELOAD ...], --preload [PRELOAD ...]\n                        predefined commands to run on startup\n\nExample usage:\n  python initiator.py ./config/initiator.cfg --colour --preload \\\n  \"message new ORD-BUY\" \"message edit 38=100\" \"message send\" \"exit\"\n```\n\n# Example\n\nConnect to a gateway, send a market order, and disconnect.\n```\n$ python3 ./initiator.py config/initiator.cfg --colour\n    ___________  __ __________\n   / ____/  _/ |/ //  _/_  __/\n  / /_   / / |   / / /  / /\n / __/ _/ / /   |_/ /  / /\n/_/   /___//_/|_/___/ /_/\n                   version 0.1\n\n[+] Interceptor Started on TCP 8080 -\u003e 10.0.2.15:9878\n\n[+] FIX Session created: FIX.4.2:SOMECLIENT-\u003eFIXIMULATORTRADE.\n\n[+] Logging on to 'FIX.4.2:SOMECLIENT-\u003eFIXIMULATORTRADE'...\n\n-\u003e OUT(ADM): S:0 [00000] b'8=FIX.4.2|9=87|35=A|34=1|49=SOMECLIENT|52=20241206-03:02:24.297|56=FIXIMULATORTR...\n\u003c- IN (ADM): S:0 [00001] b'8=FIX.4.2|9=87|35=A|34=1|49=FIXIMULATORTRADE|52=20241206-03:02:24.303|56=SOMECLI...\n\n[+] Successful Logon to session 'FIX.4.2:SOMECLIENT-\u003eFIXIMULATORTRADE'.\n\n[FIX/SESS-0]\u003e message new ORD-BUY\n[+] Storing message: NEW_ORDER_D...\n[+] Message saved: FIX.4.2:NEW_ORDER_D-D:1\n\n[FIX/SESS-0/FIX.4.2:NEW_ORDER_D-D:1]\u003e message edit 40=1 54=1 55=THQI 38=500 -44\n[+] Message updated: 40=1\n[+] Message updated: 54=1\n[+] Message updated: 55=THQI\n[+] Message updated: 38=500\n[+] Message updated: 44 removed\n\n[FIX/SESS-0/FIX.4.2:NEW_ORDER_D-D:1]\u003e message view\n8(BeginString)=FIX.4.2\n9(BodyLength)=151\n35(MsgType)=D\n34(MsgSeqNum)=1\n49(SenderCompID)=SOMECLIENT\n52(SendingTime)=20241206-03:02:24\n56(TargetCompID)=FIXIMULATORTRADE\n11(ClOrdID)=1-1733454144.399551\n21(HandlInst)=1\n38(OrderQty)=500\n40(OrdType)=1\n54(Side)=1\n55(Symbol)=THQI\n59(TimeInForce)=1\n60(TransactTime)=20241206-03:02:24\n10(CheckSum)=086\n\n[FIX/SESS-0/FIX.4.2:NEW_ORDER_D-D:1]\u003e message send\n[+] Sending message...\n-\u003e OUT(APP): S:0 [00002] b'8=FIX.4.2|9=148|35=D|34=2|49=SOMECLIENT|52=20241206-03:02:24.440|56=FIXIMULATORT...\n\u003c- IN (APP): S:0 [00003] b'8=FIX.4.2|9=191|35=8|34=2|49=FIXIMULATORTRADE|52=20241206-03:02:24.452|56=SOMECL...\n\n[FIX/SESS-0/FIX.4.2:NEW_ORDER_D-D:1]\u003e history\n    ID  Route        Message\n------  -----------  -----------------------------------------------------------------------------------------\n     0  -\u003e OUT(ADM)  A (LOGON) 8=FIX.4.2|9=87|35=A|34=1|49=SOMECLIENT|52=20241206-03:02:24.297|56=FIXIMULAT...\n     1  \u003c- IN (ADM)  A (LOGON) 8=FIX.4.2|9=87|35=A|34=1|49=FIXIMULATORTRADE|52=20241206-03:02:24.303|56=SOM...\n     2  -\u003e OUT(APP)  D (NEW_ORDER_D) 8=FIX.4.2|9=148|35=D|34=2|49=SOMECLIENT|52=20241206-03:02:24.440|56=FI...\n     3  \u003c- IN (APP)  8 (EXECUTION_REPORT) 8=FIX.4.2|9=191|35=8|34=2|49=FIXIMULATORTRADE|52=20241206-03:02:2...\n\n[FIX/SESS-0/FIX.4.2:NEW_ORDER_D-D:1]\u003e exit\n[+] TERMINATING\n\n[+] Logging out of 'FIX.4.2:SOMECLIENT-\u003eFIXIMULATORTRADE'...\n\n-\u003e OUT(ADM): S:0 [00006] b'8=FIX.4.2|9=69|35=5|34=4|49=SOMECLIENT|52=20241206-03:02:26.957|56=FIXIMULATORTR...\n\u003c- IN (ADM): S:0 [00007] b'8=FIX.4.2|9=69|35=5|34=4|49=FIXIMULATORTRADE|52=20241206-03:02:26.963|56=SOMECLI...\n\n[+] Logged out of session 'FIX.4.2:SOMECLIENT-\u003eFIXIMULATORTRADE complete'.\n[+] Terminating Interceptor on TCP: 8080\n[+] Complete!\n```\n\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Freverseclabs%2Ffixit","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Freverseclabs%2Ffixit","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Freverseclabs%2Ffixit/lists"}