CVE-2021-33484
7.5 · HIGHOverview
CVE-2021-33484 is a high-severity vulnerability affecting onyaktech_comments_pro_project onyaktech_comments_pro. It was published on September 7, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
An issue was discovered in CommentsService.ashx in OnyakTech Comments Pro 3.8. An attacker can download a copy of the installer, decompile it, and discover a hardcoded IV used to encrypt the username and userid in the comment POST request. Additionally, the attacker can decrypt the encrypted encryption key (sent as a parameter in the comment form request) by setting this encrypted value as the username, which will appear on the comment page in its decrypted form. Using these two values (combined with the encryption functionality discovered in the decompiled installer), the attacker can encrypt another user's ID and username. These values can be used as part of the comment posting request in order to spoof the user.
Remediation
Check the references section for vendor advisories and patches from onyaktech_comments_pro_project. Update onyaktech_comments_pro to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
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Frequently Asked Questions
What is CVE-2021-33484?
CVE-2021-33484 is a high-severity vulnerability affecting onyaktech_comments_pro_project onyaktech_comments_pro. It was published on September 7, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2021-33484?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-33484?
Check the references section for vendor advisories and patches from onyaktech_comments_pro_project. Update onyaktech_comments_pro to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-33484?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-33484 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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