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Serv-U web login screen was allowing characters that were not sanitized by the authentication mechanism. SolarWinds has updated the authentication mechanism to remedy this issue and prevent unauthorized parameters to be used in the Serv-U login screen With the Log4j issue in the wild, input fields across the internet have been tested for vulnerability. Although Serv-U was not affected by the log4j issue, It was discovered that better input validation could be implemented.
Serv-U server responds with valid CSRFToken when the request contains only Session.
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.
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