CVE-2021-35237

Clickjacking Vulnerability

Description

A missing HTTP header (X-Frame-Options) in Kiwi Syslog Server has left customers vulnerable to click jacking. Clickjacking is an attack that occurs when an attacker uses a transparent iframe in a window to trick a user into clicking on an actionable item, such as a button or link, to another server in which they have an identical webpage. The attacker essentially hijacks the user activity intended for the original server and sends them to the other server. This is an attack on both the user and the server.

Remediation

Solution:

  • SolarWinds has fixed the vulnerability by configuring the X-Frame-Options header. It is recommended that Kiwi Syslog Server customers to upgrade to the latest version (9.8) once it becomes generally available which now uses Microsoft IIS as the web server.

Category

5.0
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.21%
Vendor Advisory solarwinds.com Vendor Advisory solarwinds.com
Affected: SolarWinds Kiwi Syslog Server
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-35237?
CVE-2021-35237 has been scored as a medium severity vulnerability.
How to fix CVE-2021-35237?
To fix CVE-2021-35237: SolarWinds has fixed the vulnerability by configuring the X-Frame-Options header. It is recommended that Kiwi Syslog Server customers to upgrade to the latest version (9.8) once it becomes generally available which now uses Microsoft IIS as the web server.
Is CVE-2021-35237 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-35237 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-35237?
CVE-2021-35237 affects SolarWinds Kiwi Syslog Server.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.