CVE-2021-35237
Clickjacking Vulnerability
- Published
- Updated
- Reserved
- Assigned by
- SolarWinds
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| SolarWindsCNA (assigner) | 3.1 | Medium5.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L |
| NVDNVD · Modified | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.96% · top 38% of all CVEs (6 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
SolarWinds · Kiwi Syslog Server
- affected 9.7.2 and previous versions – < 9.7.2
What to do
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.
References (2)
- https://documentation.solarwinds.com/en/success_center/kss/content/release_notes/kss_9-8_release_notes.htm (opens in a new tab)x_refsource_MISCx_transferred
- https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35237 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-35237)Record last updated .