Can't get directory listing

[Robert Klein]

Server is z/OS 1.9. Client O/S is XP SP3. Here is debug listing:

Trace: CFtpControlSocket::OnReceive()
Response: 220-FTPD1 IBM FTP CS V1R9 at titan.nih.gov, 11:45:29 on 2010-03-02.
Trace: CFtpControlSocket::OnReceive()
Response: 220 Connection will close if idle for more than 1440 minutes.
Trace: CFtpControlSocket::SendNextCommand()
Command: AUTH TLS
Trace: CFtpControlSocket::OnReceive()
Response: 234 Security environment established - ready for negotiation
Status: Initializing TLS...
Trace: CTlsSocket::Handshake()
Trace: CTlsSocket::ContinueHandshake()
Trace: CTlsSocket::OnSend()
Trace: CTlsSocket::OnRead()
Trace: CTlsSocket::ContinueHandshake()
Trace: CTlsSocket::OnRead()
Trace: CTlsSocket::ContinueHandshake()
Trace: CTlsSocket::OnRead()
Trace: CTlsSocket::ContinueHandshake()
Trace: CTlsSocket::OnRead()
Trace: CTlsSocket::ContinueHandshake()
Trace: CTlsSocket::OnRead()
Trace: CTlsSocket::ContinueHandshake()
Trace: Handshake successful
Trace: Cipher: ARCFOUR-128, MAC: MD5
Status: Verifying certificate...
Trace: CFtpControlSocket::SendNextCommand()
Command: USER zzyzkl2
Status: TLS/SSL connection established.
Trace: CTlsSocket::OnRead()
Trace: CFtpControlSocket::OnReceive()
Response: 331 Send password please.
Trace: CFtpControlSocket::SendNextCommand()
Trace: CFtpControlSocket::SendNextCommand()
Command: PASS *
Trace: CTlsSocket::OnRead()
Trace: CFtpControlSocket::OnReceive()
Response: 230 ZZYZKL2 is logged on. Working directory is "ZZYZKL2.".
Trace: CFtpControlSocket::SendNextCommand()
Command: SYST
Trace: CTlsSocket::OnRead()
Trace: CFtpControlSocket::OnReceive()
Response: 215 MVS is the operating system of this server. FTP Server is running on z/OS.
Trace: CFtpControlSocket::SendNextCommand()
Command: FEAT
Trace: CTlsSocket::OnRead()
Trace: CFtpControlSocket::OnReceive()
Response: 211- Extensions supported
Trace: CTlsSocket::OnRead()
Trace: CFtpControlSocket::OnReceive()
Response: AUTH TLS
Response: PBSZ
Response: PROT
Response: 211 End
Trace: CFtpControlSocket::SendNextCommand()
Command: PBSZ 0
Trace: CTlsSocket::OnRead()
Trace: CFtpControlSocket::OnReceive()
Response: 200 Protection buffer size accepted
Trace: CFtpControlSocket::SendNextCommand()
Command: PROT P
Trace: CTlsSocket::OnRead()
Trace: CFtpControlSocket::OnReceive()
Response: 200 Data connection protection set to private
Status: Connected
Trace: CFtpControlSocket::ResetOperation(0)
Trace: CControlSocket::ResetOperation(0)
Trace: CFileZillaEnginePrivate::ResetOperation(0)
Status: Retrieving directory listing...
Trace: CFtpControlSocket::SendNextCommand()
Trace: CFtpControlSocket::ChangeDirSend()
Command: CWD 'zzyzkl2.'
Trace: CTlsSocket::OnRead()
Trace: CFtpControlSocket::OnReceive()
Response: 250 "ZZYZKL2." is the working directory name prefix.
Trace: CFtpControlSocket::SendNextCommand()
Trace: CFtpControlSocket::ChangeDirSend()
Command: PWD
Trace: CTlsSocket::OnRead()
Trace: CFtpControlSocket::OnReceive()
Response: 257 "'ZZYZKL2.'" is working directory.
Trace: CFtpControlSocket::ResetOperation(0)
Trace: CControlSocket::ResetOperation(0)
Trace: CFtpControlSocket::ParseSubcommandResult(0)
Trace: CFtpControlSocket::ListSubcommandResult()
Trace: state = 1
Trace: CFtpControlSocket::SendNextCommand()
Trace: CFtpControlSocket::TransferSend()
Trace: state = 1
Command: TYPE I
Trace: CTlsSocket::OnRead()
Trace: CFtpControlSocket::OnReceive()
Response: 200 Representation type is Image
Trace: CFtpControlSocket::TransferParseResponse()
Trace: code = 2
Trace: state = 1
Trace: CFtpControlSocket::SendNextCommand()
Trace: CFtpControlSocket::TransferSend()
Trace: state = 2
Command: PASV
Trace: CTlsSocket::OnRead()
Trace: CFtpControlSocket::OnReceive()
Response: 227 Entering Passive Mode (128,231,64,34,195,109)
Trace: CFtpControlSocket::TransferParseResponse()
Trace: code = 2
Trace: state = 2
Trace: CFtpControlSocket::SendNextCommand()
Trace: CFtpControlSocket::TransferSend()
Trace: state = 4
Command: LIST
Trace: CTransferSocket::OnConnect
Trace: CTlsSocket::Handshake()
Trace: CTlsSocket::ContinueHandshake()
Trace: CTlsSocket::OnSend()
Trace: CTlsSocket::OnSend()
Trace: CTlsSocket::OnRead()
Trace: CTlsSocket::ContinueHandshake()
Trace: CTlsSocket::OnRead()
Trace: CFtpControlSocket::OnReceive()
Response: 125 List started OK
Trace: CFtpControlSocket::TransferParseResponse()
Trace: code = 1
Trace: state = 4
Trace: CFtpControlSocket::SendNextCommand()
Trace: CFtpControlSocket::TransferSend()
Trace: state = 5
Trace: CTlsSocket::OnRead()
Trace: CTlsSocket::ContinueHandshake()
Trace: CTlsSocket::OnRead()
Trace: CTlsSocket::ContinueHandshake()
Trace: CTlsSocket::OnRead()
Trace: CTlsSocket::ContinueHandshake()
Trace: Handshake successful
Trace: Session resumed
Trace: Cipher: ARCFOUR-128, MAC: MD5
Trace: CTransferSocket::OnConnect
Trace: CTlsSocket::OnRead()
Trace: CTlsSocket::OnRead()
Trace: CTlsSocket::OnRead()
Trace: CTlsSocket::OnRead()
Trace: CTransferSocket::OnReceive(), m_transferMode=0
Trace: CTlsSocket::Failure(-9, 0)
Error: GnuTLS error -9: A TLS packet with unexpected length was received.
Status: Server did not properly shut down TLS connection
Error: Could not read from transfer socket: ECONNABORTED - Connection aborted
Trace: CTransferSocket::TransferEnd(3)
Trace: CFtpControlSocket::TransferEnd()
Trace: CTlsSocket::OnRead()
Trace: CFtpControlSocket::OnReceive()
Response: 250 List completed successfully.
Trace: CFtpControlSocket::TransferParseResponse()
Trace: code = 2
Trace: state = 7
Trace: CFtpControlSocket::ResetOperation(2)
Trace: CControlSocket::ResetOperation(2)
Trace: CFtpControlSocket::ParseSubcommandResult(2)
Trace: CFtpControlSocket::ListSubcommandResult()
Trace: state = 3
Trace: CFtpControlSocket::ResetOperation(2)
Trace: CControlSocket::ResetOperation(2)
Error: Failed to retrieve directory listing
Trace: CFileZillaEnginePrivate::ResetOperation(2)

note: another user of our system was able to obtain a directory listing, but he has far fewer data sets than I do.

[Robert Klein]

I forgot to include filezilla version:

FileZilla Client

---

Version: 3.3.2

Build information:

Compiled for: i586-pc-mingw32msvc
Compiled on: x86_64-unknown-linux-gnu
Build date: 2010-02-21
Compiled with: i586-mingw32msvc-gcc (GCC) 4.2.1-sjlj (mingw32-2)
Compiler flags: -g -O2 -Wall -g -fexceptions

Linked against:

wxWidgets: 2.8.11
GnuTLS: 2.8.3

[Tim Kosse]

This is a known problem caused by a security vulnerability in some server products, including your server. See ​http://forum.filezilla-project.org/viewtopic.php?f=2&t=7688 and the linked discussion topic for an in-depth analysis.