CVE-2025-34102 CryptoLog Unauthenticated RCE via SQL Injection and Command Injection
Unauthenticated attackers can achieve remote code execution by chaining SQL injection for authentication bypass with command injection in the discontinued CryptoLog PHP application.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-34102?
CVE-2025-34102 is a critical SQL injection vulnerability in Crypttech CryptoLog, published on 10 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A remote code execution vulnerability exists in CryptoLog (PHP version, discontinued since 2009) due to a chained exploitation of SQL injection and command injection vulnerabilities. An unauthenticated attacker can gain shell access as the web server user by first exploiting a SQL injection flaw in login.php to bypass authentication, followed by command injection in logshares_ajax.php to execute arbitrary operating system commands.
The login bypass is achieved by submitting crafted SQL via the user POST parameter. Once authenticated, the attacker can abuse the lsid POST parameter in the logshares_ajax.php endpoint to inject and execute a command using $(...) syntax, resulting in code execution under the web context.
This exploitation path does not exist in the ASP.NET version of CryptoLog released since 2009.
Which versions are affected by CVE-2025-34102?
How do I fix CVE-2025-34102?
No fix has been published for CVE-2025-34102 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2025-34102 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-34102 exists.
Public exploit code: 1 Metasploit module.
Sources
Also known as GHSA-8mgf-p582-j48h.