Documentation forServ-U MFT & Serv-U FTP Server

Serv-U File Server 15.1.7 Release Notes

Release date: April 25, 2019

These release notes describe the new features, improvements, and fixed issues in Serv-U File Server 15.1.7. They also provide information about upgrades and describe workarounds for known issues.

If you are looking for previous release notes for Serv-U File Server, see Previous Version documentation.

NPAPI is deprecated in Google Chrome. This means Web Client Pro will not function in Google Chrome. As a workaround, access Web Client Pro using another browser.

New features and improvements

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Serv-U 15.1.7 is a service release containing three hotfixes, and additional fixes, described here.

Previous releases

Serv-U 15.1.6 included the following new features and updates:

  • Support for Explicit SSL when connected to SMTP server
  • Support for HTTP Strict Transport Security
  • Support for Elliptic-curve Diffie-Hellman (ECDH) key exchange
  • Forward secrecy is enabled by default (new installations only)
  • TLS 1.0 is disabled by default (new installations only)
  • Disabled SSL/TLS ciphers based on 64-bit block size (new installations only)
  • Support for Secure LDAP protocol (Windows installation only)
  • Various fixes described in the Fixed Issues section.

Serv-U 15.1.5 was a service release containing security fixes, described in the Fixed Issues section.

Serv-U 15.1.4 was a service release containing two hotfixes, described in the Fixed Issues section.

Serv-U 15.1.3 was a service release containing two hotfixes, described in the Fixed Issues section.

For earlier Serv-U 15.x.x releases, please visit the Previous Versions page.


Fixed issues

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Serv-U 15.1.7 fixes the following issues.

Case Number Description
423241 Fixed issue where writing files to disk could cause bottleneck
1197511 Corrected SSL error handling on Socket level
00063383 Fixed issue with service when sending download link to guest user
00068104 Corrected format for X-Csrf-Token HTTP header (FTP Voyager JV)
00159690 Fixed issue with ODBC database validation
00200302 CSRF issues resolved.
00186124 Can now add a user to a collection when the user exists in another collection
00204425 Serv-U no longer deletes incorrect files from directories with delete rules
00229117 Serv-U no longer response incorrectly when empty user name and password is used to log on
00284847 Issues in web management interface fixed
00061457 Special characters from E-mail notification template not sent correctly
00039051, 00081081, 00195143, 00263829, 00260387, 00218061, 1362493, 1338156 Updated jquery libraries
00054823, 1320710, 1335744 Files list returned corrected from LIST Command
00085995, 00201705 CVE-1999-0017 vulnerability fixed.
00187355, 00065590, 00053277, 00105077, 00123871 Multiple issues in SFTP protocol resolved
00240051, 00267281, 00260953, 00280283, 00285641 WinSCP upload issues resolved
n/a Resolved a privilege escalation issue, logged as CVE-2018-19999 – with thanks to Chris Moberly at The Missing Link.
n/a Resolved a privilege escalation issue, logged as CVE-2019-12181 – with thanks to Guy Levin (@va_start).

Serv-U 15.1.6 fixes the following issues.

Case Number Description
961565, 1183341, 887731, 1123968, 1125053, 901145, 1091444, 1131439, 1080928, 796814, 799615, 787936, 1036534 Fixed an issue with limited top level domain.
1050275 Fixed an issue with long timeout where LDAP server was unavailable
166489, 1126605, 914000 Fixed an issue with SSH Ciphers description.
1186645, 979487 Fixed an impersonation issue during downloads.
1039205 Fixed an issue with password stale event.
1086638, 1209329 Fixed an issue with special characters in File Sharing notification template.
1129144, 1115351 Fixed a possible crash of Gateway.
1163543 Fixed an issue with user creation wizard.
1123779 Fixed a memory leak issue related to SFTP sessions.
1231876, 1233371, 1209874 Fixed broken links to support site.
1124857, 1181653, 1215831, 1223871, 1230986, 1241567, 1326419 Fixed an issue with bare line feed character.

Serv-U 15.1.5 fixes the following issues.

Case Number Description
1110916 Fixed potential vulnerability with unauthenticated privilege escalation Reported by – Trustwave SpiderLabs Contact - Leopold von Niebelschuetz-Godlewski
904433, 804380 Fixed an issue with possibility of unauthorized access to the files in installation folder on web server. Reported by – www.netspi.com Contact - Cody Wass (Cody. Wass@netspi.com)
1065565, 1061848, 1056263, 1054225, 1090081, 1045088 Fixed an issue where domain users were not able to login when ldap suffix was used.
741595 Fixed a memory leak issue that occurred during LDAP authentication.
951099, 1065736, 1022993 Fixed a memory leak issue that occurred during SFTP session.
882524, 909979, 871563, 867742, 867834, 981751, 877933 Fixed an issue with "Automatic idle connection timeout" limit.

Serv-U 15.1.4 fixes the following issues.

Case Number Description
991668 ECDHE-RSA-AES256* ciphers shown as enabled or disabled correctly
954294 Long (encrypted) passwords issue fixed.
984664, 1003106, 993854 OpenSSL vulnerabilities - updated to 1.0.2h
932381 SHA-1 Cert deprecation (Previous cert was due to expire in January 2017)
984485, 887910, 741595 LDAP suffix issue fixed
844572, 894400, 953313, 910253, 881308, 914055, 990080 Web client Favorites fixed.
1005791, 1005383, 990956, 984664, 982577, 966856, 948270, 963296, 941118, 934566, 927375, 917616, 900288, 883047, 885033, 884883, 876306, 876820, 874853, 872968, 857502, 862922, 853433 Serv-U no longer freezes in FIPS mode during SFTP connections.

Serv-U 15.1.3 fixes the following issues.

Case Number Description
872782, 864631 Case sensitivity issues occurred when configuring Directory Access rules.
n/a An issue with LDAP public key authentication.
n/a Memory leak occurs during LDAP authentication.
853136 An issue with the expired password change functionality.
868638 An issue with multi-line FTP responses for the FEAT command.
n/a An issue with the possibility of SQL injection in the invitation link used by secure file sharing.
625348 An issue with the possibility of persistent cross-site scripting in file sharing.
n/a An issue with the possibility of the injection of additional email headers using a crafter subject in an upload or download request.

Legal notices

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