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'''
# SMTP命令注入测试(手动交互)
telnet haitutech.cn 25
EHLO attacker.com
MAIL FROM: <admin@haitutech.cn>
RCPT TO: <target@example.com> NOTIFY=SUCCESS,FAILURE
'''
import socket
import subprocess
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from tools.ToolBase import ToolBase
class TelnetTool(ToolBase):
def validate_instruction(self, instruction):
#指令过滤
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timeout = 60
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return instruction,timeout
def analyze_result(self, result,instruction,stderr,stdout):
#指令结果分析
return result
def smtp_injection_test(self,cmd_str: str,host,port):
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"""
测试 SMTP 命令注入漏洞
参数:
cmd_str: 多行字符串其中第一行为类似 "telnet haitutech.cn 25"
后续行为具体的 SMTP 命令例如
EHLO attacker.com
MAIL FROM: <admin@haitutech.cn>
RCPT TO: <target@example.com> NOTIFY=SUCCESS,FAILURE
返回:
如果 RCPT 命令响应以 250 开头认为可能存在漏洞返回 True
否则认为安全或不支持该注入返回 False
"""
last_response = ""
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lines = cmd_str.strip().splitlines()
try:
# 建立 TCP 连接
s = socket.create_connection((host, port), timeout=10)
except Exception as e:
#print("连接失败:", e)
return f"连接失败:{e}"
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# 读取 SMTP Banner
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try:
banner = s.recv(1024).decode('utf-8', errors='ignore')
except Exception as e:
#print("读取 Banner 失败:", e)
s.close()
return f"读取 Banner 失败:{e}"
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# 从第二行开始发送 SMTP 命令
for line in lines[1:]:
cmd = line.strip()
if not cmd:
continue
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try:
s.send((cmd + "\r\n").encode())
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except Exception as e:
s.close()
return f"发送命令失败:{e}"
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try:
response = s.recv(1024).decode('utf-8', errors='ignore')
#print("收到响应:", response.strip())
last_response = response.strip()
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except Exception as e:
#print("读取响应失败:", e)
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s.close()
return f"读取响应失败:{e}"
s.close()
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# 以 RCPT 命令的响应作为判断依据
# 注意:对于支持 DSN 的服务器,250 可能是合法的响应,
# 但在不支持的情况下,若返回 250 则可能说明命令注入导致了不正常的处理。
if last_response.startswith("250"):
return "RCPT 命令返回 250,可能存在 SMTP 命令注入风险。"
else:
return "RCPT 命令返回非 250 响应,暂未发现注入风险。"
def execute_instruction(self, instruction_old):
'''
执行指令验证合法性 -> 执行 -> 分析结果
:param instruction_old:
:return:
bool:true-正常返回给大模型false-结果不返回给大模型
str:执行的指令
str:执行指令的结果
'''
ext_params = self.create_extparams()
# 第一步:验证指令合法性
instruction,timeout = self.validate_instruction(instruction_old)
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if not instruction:
return False,instruction_old,"该指令暂不执行!","",ext_params
#过滤修改后的指令是否需要判重?同样指令再执行结果一致?待定---#?
# 第二步:执行指令
lines = instruction.strip().splitlines()
# 解析第一行,格式应为:telnet host port
parts = lines[0].strip().split()
if len(parts) < 3:
output = "第一行格式错误,预期格式: 'telnet host port'"
ext_params["is_user"] = True
return True,instruction,output,output,ext_params
host = parts[1]
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port = 0
try:
port = int(parts[2])
except ValueError:
output = "端口转换失败"
ext_params["is_user"] = True
if port == 25:
output = self.smtp_injection_test(instruction,host,port)
else:#其他默认subprocess执行
try:
# 指令过滤
if "<<<" in instruction:
instruction = f"bash -c \"{instruction}\""
if timeout == 0:
result = subprocess.run(instruction, shell=True, capture_output=True, text=True)
elif timeout > 0:
result = subprocess.run(instruction, shell=True, capture_output=True, text=True, timeout=timeout)
else:
print("timeout参数错误,需要自查程序逻辑!")
stderr = result.stderr
stdout = result.stdout
except subprocess.TimeoutExpired as e:
stdout = e.stdout if e.stdout is not None else ""
stderr = e.stderr if e.stderr is not None else ""
ext_params.is_user = True # 对于超时的也需要人工进行确认,是否是预期的超时
except Exception as e:
ext_params.is_user = True
return False, instruction, f"执行失败:{str(e)}", "", ext_params # 执行失败,提交给人工确认指令的正确性
output = stdout
if stderr:
output += stderr
if isinstance(output, bytes): # 若是bytes则转成str
output = output.decode('utf-8', errors='ignore')
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# 第三步:分析执行结果
analysis = self.analyze_result(output,instruction,"","")
if not analysis: #analysis为“” 不提交LLM
ext_params.is_user = True
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return False,instruction,analysis,output,ext_params
return True,instruction, analysis,output,ext_params
if __name__ == "__main__":
pass