CVE-2023-36655
CWE-287Published: December 6, 2023· Updated: Jun 17, 2026
Official Description
The login REST API in ProLion CryptoSpike 3.0.15P2 (when LDAP or Active Directory is used as the users store) allows a remote blocked user to login and obtain an authentication token by specifying a username with different uppercase/lowercase character combination.
Risk Analysis
ProLion CryptoSpike allows blocked users to bypass authentication by manipulating character casing in their username. This critical flaw allows unauthorized access to the system.
No public exploit is known. The vulnerability is remotely exploitable with low attack complexity.
Update ProLion CryptoSpike to the latest patched version to correct the authentication logic.
Technical Analysis
CVE-2023-36655 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (4)
Quick Facts
Related CVEs (CWE-287)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-36655 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts