Release date: May 5, 2021
These release notes describe the new features, improvements, and fixed issues in Serv-U File Server 15.2.3. 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.
For details about the latest hotfixes, see Serv-U hotfixes.
Additional Serv-U documentation includes:
- Serv-U Installation and Upgrade Guide
- Serv-U 15.2 Administrator Guide
- System Requirements
- Getting Started with Serv-U
New features and improvements
Serv-U 15.2.3 is a security-focused release, including:
- SQLite upgraded to version 3.26
- Support for Content Security Policy
- Silent installation improvements
- Licensing framework changed (see Upgrade notes)
The Serv-U licensing framework has been changed in Serv-U 15.2.3 and a new license key needs to be used to activate this product version otherwise it will not be possible to use it.
If your Serv-U product maintenance is active, you can find your new license key generated on customer portal. Use this new license key to activate Serv-U 15.2.3 after installation.
Solarwinds strongly recommend that you upgrade to this version with the new licensing framework as older framework will not be supported in the future.
If you are upgrading from version 15.1.7 or older, increased password security and automatically converts existing MD5 passwords using a more secure algorithm when users connect for the first time after upgrade.
If an account is not used within 90 days of the upgrade, access will be restricted and the user will not be able to log in afterward. The administrator will be required to change their password.
Serv-U 15.2.3 fixes the following issues:
|00434626||DNS Rebinding vulnerability.|
|00731952||Issue resolved where configuration was lost after applying hotfix.|
|00733060, 00746740||Login page text can include <br> tags again.|
|00743703||Host header injection vulnerability fixed.|
|00745112||Problems with rights windows groups and LDAP resolved.|
|00747046||Issue with SSH Host Key Errors resolved.|
|00755502||CSP header implemented.|
|00756736||Anti-hammering setting and Allow X-Forwarded-For to change HTTP connection IP addresses work together correctly.|
|00760866, 00765598||SFTP login issue resolved.|
|00771303||the user-supplied 'SenderEmail' parameter now correctly sanitised and validated.|
|00776476||Security-related HTTP response header issue resolved.|
|00782585||Names containing apostrophes can now be edited or deleted.|
For Serv-U 15.2.2 fixes, see the 15.2.2 Release Notes.
For Serv-U 15.2.1 fixes, see the 15.2.1 Release Notes.
For Serv-U 15.2 fixes, see the 15.2 Release Notes.
SolarWinds would like to thank our Security Researchers below for reporting on this issue in a responsible manner and working with our security, product, and engineering teams to fix the vulnerability.
|ALPACA Cross Protocol Reflection Attack||Serv-U FTP could be potentially misused to perform a cross-protocol attack. Authenticated users can also exploit this for upload/download attacks. In addition, an unauthenticated reflection attack can occur which can potentially lead to XSS.||High||
Marcus Brinkmann (1)
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