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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-33484 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://burninatorsec.blogspot.com/2021/07/onyaktech-comments-pro-broken.html Exploit  Third Party Advisory 
https://burninatorsec.blogspot.com/2021/07/onyaktech-comments-pro-broken.html Exploit  Third Party Advisory 
https://twitter.com/onyaktech Third Party Advisory 
https://twitter.com/onyaktech Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-798 Use of Hard-coded Credentials cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-33484
NVD Published Date:
09/07/2021
NVD Last Modified:
11/21/2024
Source:
MITRE