solarwinds serv-u CVE-2021-35247 is a vulnerability in SolarWinds Serv U
Published on January 10, 2022

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.

Vendor Advisory Vendor Advisory NVD

Known Exploited Vulnerability

This SolarWinds Serv-U Improper Input Validation Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. SolarWinds Serv-U versions 15.2.5 and earlier contain an improper input validation vulnerability which allows attackers to build and send queries without sanitization.

The following remediation steps are recommended / required by February 4, 2022: Apply updates per vendor instructions.

Vulnerability Analysis

CVE-2021-35247 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. It has the highest possible exploitability rating (3.9). The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.


Products Associated with CVE-2021-35247

You can be notified by stack.watch whenever vulnerabilities like CVE-2021-35247 are published in these products:

SolarWinds Serv U
 

What versions of Serv U are vulnerable to CVE-2021-35247?