CVE-2021-35247 : Vulnerability Insights and Analysis
Learn about CVE-2021-35247, an improper input validation vulnerability in Serv-U by SolarWinds that allowed characters not properly sanitized, impacting versions prior to 15.3.
Serv-U, a product by SolarWinds, was found to have an improper input validation vulnerability that allowed characters not sufficiently sanitized on the web login screen for LDAP authentication. This vulnerability was reported by Jonathan Bar Or of Microsoft. SolarWinds has addressed this issue by updating the input mechanism to enhance validation and sanitization.
Understanding CVE-2021-35247
This section provides insights into the nature of CVE-2021-35247 and its impact.
What is CVE-2021-35247?
CVE-2021-35247 is an improper input validation vulnerability in Serv-U that could potentially lead to security risks due to insufficiently sanitized characters in the LDAP authentication process.
The Impact of CVE-2021-35247
The impact of this vulnerability could result in unauthorized access or other security threats if exploited by malicious actors.
Technical Details of CVE-2021-35247
Let's delve into the technical aspects of CVE-2021-35247 to understand the vulnerability better.
Vulnerability Description
The vulnerability in Serv-U allowed characters that were not properly sanitized during LDAP authentication, posing a risk to the security of the system.
Affected Systems and Versions
Serv-U versions prior to 15.3, specifically version 15.2.5 and earlier, are affected by this vulnerability.
Exploitation Mechanism
The vulnerability could be exploited by attackers leveraging the improperly sanitized characters in the LDAP authentication process.
Mitigation and Prevention
In this section, we discuss the steps to mitigate and prevent the exploitation of CVE-2021-35247.
Immediate Steps to Take
It is recommended to update Serv-U to the latest version (15.3) to address this vulnerability.
Long-Term Security Practices
Enforce strict input validation measures and regularly update software to prevent such vulnerabilities in the future.
Patching and Updates
Stay informed about security advisories from SolarWinds and promptly apply patches and updates to secure your systems.