SolarWinds Serv-U is submitting an HTTP request when changing or updating the attributes for File Share or File request.  Part of the URL of the request discloses sensitive data. 

Common encryption key appears to be used across all deployed instances of Serv-U FTP Server. Because of this an encrypted value that is exposed to an attacker can be simply recovered to plaintext.

This broken access control vulnerability pertains specifically to a domain admin who can access configuration & user data of other domains which they should not have access to. Please note the admin is unable to modify the data (read only operation). This UAC issue leads to a data leak to unauthorized users for a domain, with no log of them accessing the data unless they attempt to modify it. This read-only activity is logged to the original domain and does not specify which domain was accessed.

Serv-U web login screen to LDAP authentication was allowing characters that were not sufficiently sanitized. SolarWinds has updated the input mechanism to perform additional validation and sanitization. Please Note: No downstream affect has been detected as the LDAP servers ignored improper characters. To insure proper input validation is completed in all environments. SolarWinds recommends scheduling an update to the latest version of Serv-U.

When a user has admin rights in Serv-U Console, the user can move, create and delete any files are able to be accessed on the Serv-U host machine.

Serv-U server responds with valid CSRFToken when the request contains only Session.

The Serv-U File Server allows for events such as user login failures to be audited by executing a command. This command can be supplied with parameters that can take the form of user string variables, allowing remote code execution.

Microsoft discovered a remote code execution (RCE) vulnerability in the SolarWinds Serv-U product utilizing a Remote Memory Escape Vulnerability. If exploited, a threat actor may be able to gain privileged access to the machine hosting Serv-U Only. SolarWinds Serv-U Managed File Transfer and Serv-U Secure FTP for Windows before 15.2.3 HF2 are affected by this vulnerability.

Share/IncomingWizard.htm in SolarWinds Serv-U before 15.2.3 mishandles the user-supplied SenderEmail parameter, aka "Share URL XSS."

An issue was discovered in SolarWinds Serv-U before 15.2.2. Unauthenticated attackers can retrieve cleartext passwords via macro Injection. NOTE: this had a distinct fix relative to CVE-2020-35481.

In SolarWinds Serv-U before 15.2.2 Hotfix 1, there is a directory containing user profile files (that include users' password hashes) that is world readable and writable. An unprivileged Windows user (having access to the server's filesystem) can add an FTP user by copying a valid profile file to this directory. For example, if this profile sets up a user with a C:\ home directory, then the attacker obtains access to read or replace arbitrary files with LocalSystem privileges.

SolarWinds Serv-U before 15.2.2 allows authenticated reflected XSS.

SolarWinds Serv-U before 15.2.2 allows Unauthenticated Macro Injection.

SolarWinds Serv-U before 15.2.2 allows Authenticated Stored XSS.

SolarWinds Serv-U before 15.2.2 allows Authenticated Directory Traversal.

SolarWinds Serv-U File Server before 15.2.1 allows information disclosure via an HTTP response.

SolarWinds Serv-U File Server before 15.2.1 allows XSS as demonstrated by Tenable Scan, aka Case Number 00484194.

SolarWinds Serv-U File Server before 15.2.1 mishandles the Same-Site cookie attribute, aka Case Number 00331893.

SolarWinds Serv-U File Server before 15.2.1 has a "Cross-script vulnerability," aka Case Numbers 00041778 and 00306421.

A denial of service vulnerability in SolarWinds Serv-U before 15.1.6 HFv1 allows an authenticated user to crash the application (with a NULL pointer dereference) via a specially crafted URL beginning with the /Web%20Client/ substring.