CVE-2021-35236 Explained : Impact and Mitigation
Learn about CVE-2021-35236 affecting Kiwi Syslog Server versions 9.7.2 and earlier by SolarWinds. Understand the impact, technical details, and mitigation steps to secure your system.
Kiwi Syslog Server by SolarWinds, versions 9.7.2 and previous, are affected by a vulnerability where the Secure flag is missing from the SSL Cookie. This exposes the cookie to potential interception in unencrypted HTTP requests.
Understanding CVE-2021-35236
This CVE refers to the absence of the Secure flag in the SSL Cookie of Kiwi Syslog Server, allowing the cookie to be transmitted over insecure channels.
What is CVE-2021-35236?
The missing Secure flag in the SSL Cookie of Kiwi Syslog Server versions 9.7.2 and earlier can lead to sensitive session information being transmitted without encryption.
The Impact of CVE-2021-35236
This vulnerability poses a low severity risk with a CVSS base score of 3.1 (Low). While no immediate availability impact is identified, confidentiality is at a low risk without integrity impact.
Technical Details of CVE-2021-35236
The vulnerability allows the cookie to be sent over unencrypted requests, potentially exposing sensitive session data in clear text.
Vulnerability Description
The absence of the Secure attribute in the SSL Cookie of Kiwi Syslog Server versions 9.7.2 and previous can lead to cookie exposure in unsecure HTTP requests.
Affected Systems and Versions
Kiwi Syslog Server versions 9.7.2 and earlier, specifically less than version 9.8, are impacted by this vulnerability.
Exploitation Mechanism
Attackers could exploit this vulnerability by intercepting the unencrypted cookie transmitted over insecure HTTP requests.
Mitigation and Prevention
To mitigate the risk associated with CVE-2021-35236, SolarWinds recommends specific security measures.
Immediate Steps to Take
SolarWinds advises all Kiwi Syslog Server users to upgrade to the latest version 9.8 when it becomes available to prevent exploitation of this vulnerability.
Long-Term Security Practices
In the long run, it is essential to ensure that all cookies are transmitted securely and to restrict access to applications via secure channels.
Patching and Updates
Regularly updating and patching the Kiwi Syslog Server to the latest version is crucial in addressing security vulnerabilities.