Serv-U 15.4.2 release notes
Release date: April 17, 2024
Here's what's new in Serv-U 15.4.2. You can find the applicable system requirements here.
To view release notes, system requirements, and product guide PDFs for supported versions of Serv-U, see Serv-U previous versions. To view release notes for multiple versions
New features and improvements in Serv-U
Database groups can be synchronized
Database groups can now be synchronized for multi-instance deployments.
Serv-U can be installed in STIG environments
Serv-U can now be installed in STIG environments through a new installation process.
Upgrades and security improvements
Windows Server 2022 is now supported.
Serv-U 15.4.2 contains security improvements such as upgrades to Nova 15, OpenSSL 3.0.13, zlib 1.3.1, and new encryption of private keys.
New Web Client and File share applications now leverage Angular 16 and stronger Content Security Policy definition.
Improvements have been made to the password recovery process for Serv-U.
Fixed CVEs
At SolarWinds, we prioritize the swift resolution of CVEs to ensure the security and integrity of our software. In this release, we have successfully addressed the following CVEs.
SolarWinds CVEs
SolarWinds would like to thank our Security Researchers below for reporting on the issue in a responsible manner and working with our security, product, and engineering teams to fix the vulnerability.
| CVE-ID | Vulnerability Title | Description | Severity | Credit |
|---|---|---|---|---|
| CVE-2024-28073 | SolarWinds Serv-U Directory Traversal Remote Code Execution Vulnerability | SolarWinds Serv-U was found to be susceptible to a Directory Traversal Remote Code Vulnerability. This vulnerability requires a highly privileged account to be exploited. | 8.4 High | Alexander Skovsende at the Institut for Cyber Risk |
Third-party CVEs
| CVE-ID | Vulnerability title | Description | Severity |
|---|---|---|---|
| CVE-2023-5678 | Denial of Service Availability | Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_generate_key() to generate an X9.42 DH key may experience long delays. Likewise, applications that use DH_check_pub_key(), DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 DH parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service. While DH_check() performs all the necessary checks (as of CVE-2023-3817), DH_check_pub_key() doesn't make any of these checks, and is therefore vulnerable for excessively large P and Q parameters. Likewise, while DH_generate_key() performs a check for an excessively large P, it doesn't check for an excessively large Q. An application that calls DH_generate_key() or DH_check_pub_key() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. DH_generate_key() and DH_check_pub_key() are also called by a number of other OpenSSL functions. An application calling any of those other functions may similarly be affected. The other functions affected by this are DH_check_pub_key_ex(), EVP_PKEY_public_check(), and EVP_PKEY_generate(). Also vulnerable are the OpenSSL pkey command line application when using the "-pubcheck" option, as well as the OpenSSL genpkey command line application. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue. | 5.3 Medium |
| CVE-2024-0727 | Denial of Service Availability | Issue summary: Processing a maliciously formatted PKCS12 file may lead OpenSSL to crash leading to a potential Denial of Service attack. Impact summary: Applications loading files in the PKCS12 format from untrusted sources might terminate abruptly. A file in PKCS12 format can contain certificates and keys and may come from an untrusted source. The PKCS12 specification allows certain fields to be NULL, but OpenSSL does not correctly check for this case. This can lead to a NULL pointer dereference that results in OpenSSL crashing. If an application processes PKCS12 files from an untrusted source using the OpenSSL APIs then that application will be vulnerable to this issue. OpenSSL APIs that are vulnerable to this are: PKCS12_parse(), PKCS12_unpack_p7data(), PKCS12_unpack_p7encdata(), PKCS12_unpack_authsafes() and PKCS12_newpass(). We have also fixed a similar issue in SMIME_write_PKCS7(). However since this function is related to writing data we do not consider it security significant. The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue. | 5.5 Medium |
Fixed customer issues
| Case number | Description |
|---|---|
| 01177327 01401182 | Calculation for available disk space for FTP commands is now correct. |
| 00911523 | Serv-U no longer hangs if Execute Command on Linux fails. |
| 00917796 | On Linux, Serv-U can now import users exported from Serv-U on Windows. |
| 00863440 01422168 | Serv-U can now import/export Serv-U users with CMD took Serv-U-Setup.exe. |
| 01131577 | Users can now log in with a local admin password whether using the default local port or a custom port in the Serv-U management console. |
| 00911523 | Serv-U no longer hangs on Linux when triggering Execute Command with invalid reference on executed command. |
| N/A | Serv-U now correctly displays certification properties in the certificate validation window on Linux. |
| N/A | The File share Expiration section in the new web client now reflects configured settings in Management console Limits and Settings. |
| N/A | Added scroll component to multi-factor authentication setup page. |
| 01446673 | The FQDN IP access rule in User Definitions no longer causes SSH login failure. |
| 01498928 01538621 | Non-English characters now display properly in Serv-U's File share ZIP function. |
| 01489301 | A directory access inconsistency no longer blocks the creating/renaming/modifying directory. |
| N/A | A memory leak inside TLS connection setup has been resolved. |
| 01469843 | Serv-U now logs all failed credential login attempts and triggers one Login Failed Event for these sessions even when dropped by the client. |
| 01458825 | An FTP file upload/rename inconsistency no longer blocks the next download operation. |
| N/A | Serv-U no longer crashes when user opens Thumbnail in the Web Client on Centos 7. |
| N/A | The Serv-U management console login screen no longer accepts a blank password for the local administrator. |
| N/A | When no password is configured, the local administrator is no longer redirected to the login page. |
| N/A | Group admins can escape their home directory. |
| 01563287 | System admins created on the Global level can now send file shares invitations and request e-mails. |
Installation or upgrade
For new installations, you can download the installation file from the Serv-U product page on https://www.solarwinds.com or from the Customer Portal. For more information, see Install the SolarWinds Serv-U File Server.
For more information about upgrades, see Upgrade Serv-U File Server.
End of life
| Version | EoL announcement | EoE effective date | EoL effective date |
|---|---|---|---|
| 15.4 | April 17, 2024: End-of-Life (EoL) announcement – Customers on Serv-U version 15.4 or earlier should begin transitioning to the latest version of Serv-U. | July 17, 2024: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for Serv-U version 15.4 or earlier will no longer actively be supported by SolarWinds. | July 17, 2025: End-of-Life (EoL) – SolarWinds will no longer provide technical support for Serv-U version 15.4. |
| 15.3.2 | December 5, 2023: End-of-Life (EoL) announcement – Customers on Serv-U version 15.3.2 or earlier should begin transitioning to the latest version of Serv-U. | February 5, 2024: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for Serv-U version 15.3.2 or earlier will no longer actively be supported by SolarWinds. | February 5, 2025: End-of-Life (EoL) – SolarWinds will no longer provide technical support for Serv-U version 15.3.2. |
| 15.3.1 | December 5, 2023: End-of-Life (EoL) announcement – Customers on Serv-U version 15.3.1 or earlier should begin transitioning to the latest version of Serv-U. | February 5, 2024: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for Serv-U version 15.3.1 or earlier will no longer actively be supported by SolarWinds. | February 5, 2025: End-of-Life (EoL) – SolarWinds will no longer provide technical support for Serv-U version 15.3.1. |
| 15.3 | December 5, 2023: End-of-Life (EoL) announcement – Customers on Serv-U version 15.3 or earlier should begin transitioning to the latest version of Serv-U. | February 5, 2024: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for Serv-U version 15.3 or earlier will no longer actively be supported by SolarWinds. | February 5, 2025: End-of-Life (EoL) – SolarWinds will no longer provide technical support for Serv-U version 15.3. |
| 15.2.5 | December 5, 2023: End-of-Life (EoL) announcement – Customers on Serv-U version 15.2.5 or earlier should begin transitioning to the latest version of Serv-U. | February 5, 2024: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for Serv-U version 15.2.5 or earlier will no longer actively be supported by SolarWinds. | February 5, 2025: End-of-Life (EoL) – SolarWinds will no longer provide technical support for Serv-U version 15.2.5. |
| 15.2.4 | December 5, 2023: End-of-Life (EoL) announcement – Customers on Serv-U version 15.2.4 or earlier should begin transitioning to the latest version of Serv-U. | February 5, 2024: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for Serv-U version 15.2.4 or earlier will no longer actively be supported by SolarWinds. | February 5, 2025: End-of-Life (EoL) – SolarWinds will no longer provide technical support for Serv-U version 15.2.4. |
| 15.2.3 | December 5, 2023: End-of-Life (EoL) announcement – Customers on Serv-U version 15.2.3 or earlier should begin transitioning to the latest version of Serv-U. | February 5, 2024: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for Serv-U version 15.2.3 or earlier will no longer actively be supported by SolarWinds. | February 5, 2025: End-of-Life (EoL) – SolarWinds will no longer provide technical support for Serv-U version 15.2.3. |
| 15.2.2 | December 5, 2023: End-of-Life (EoL) announcement – Customers on Serv-U version 15.2.2 or earlier should begin transitioning to the latest version of Serv-U. | February 5, 2024: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for Serv-U version 15.2.2 or earlier will no longer actively be supported by SolarWinds. | February 5, 2025: End-of-Life (EoL) – SolarWinds will no longer provide technical support for Serv-U version 15.2.2. |
| 15.2.1 | December 5, 2023: End-of-Life (EoL) announcement – Customers on Serv-U version 15.2.1 or earlier should begin transitioning to the latest version of Serv-U. | February 5, 2024: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for Serv-U version 15.2.1 or earlier will no longer actively be supported by SolarWinds. | February 5, 2025: End-of-Life (EoL) – SolarWinds will no longer provide technical support for Serv-U version 15.2.1. |
| 15.2 | December 5, 2023: End-of-Life (EoL) announcement – Customers on Serv-U version 15.2 or earlier should begin transitioning to the latest version of Serv-U. | February 5, 2024: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for Serv-U version 15.2 or earlier will no longer actively be supported by SolarWinds. | February 5, 2025: End-of-Life (EoL) – SolarWinds will no longer provide technical support for Serv-U version 15.2. |
| 15.1.7 | December 5, 2023: End-of-Life (EoL) announcement – Customers on Serv-U version 15.1.7 or earlier should begin transitioning to the latest version of Serv-U. | February 5, 2024: End-of-Engineering (EoE) – Service releases, bug fixes, workarounds, and service packs for Serv-U version 15.1.7 or earlier will no longer actively be supported by SolarWinds. | February 5, 2025: End-of-Life (EoL) – SolarWinds will no longer provide technical support for Serv-U version 15.1.7. |
See the End of Life Policy for information about SolarWinds product life cycle phases. To see EoL dates for earlier Serv-U versions, see Serv-U release history.
Deprecation notice
The following platforms and features are still supported in the current release. However, they will be unsupported in a future release. Plan on upgrading deprecated platforms, and avoid using deprecated features.
Web client modules
Java-based Serv-U web client modules FTP Voyager JV and Web Client Pro will be discontinued in an upcoming release. However, these modules are still available, together with the new Serv-U web client to support a migration path.
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