These two CVEs describe related but distinct ways to defeat vDesk's two-factor authentication:
Because the semicolon ( ; ) acts as a command separator in Unix/Linux environments, the server executes the internal command, immediately followed by the attacker's injected command ( cat /etc/passwd ). The output is then rendered back to the attacker's browser session. Impact of Successful Exploitation
While many users encounter this page during standard session timeouts or failed login attempts, it has also been a focal point for security researchers and attackers investigating vulnerabilities like and Cross-Site Scripting (XSS) . The "vdesk/hangup.php3" Mystery: Feature or Flaw?
While the specific hangupphp3 file is largely a relic of older systems, the logic behind the exploit remains a top threat (A03:2021 – Injection in the OWASP Top 10). Here is how to prevent similar issues: vdesk hangupphp3 exploit
: This is a more recent (2022) Broken Access Control vulnerability in the /api/v1/vdesk_[DOMAIN]/export
The Vdesk Hangup PHP 3 exploit has several implications:
In legacy iterations, appending custom arguments to requests targeted at configuration profiles (such as webyfiers.php or index.php within the administrative configurations of early firmware) yielded functional Cross-Site Scripting (XSS) opportunities, as validated by . 2. Denial of Service (DoS) and State Loop Resets These two CVEs describe related but distinct ways
The reason this URI appears in exploit databases is not because "hanging up" is inherently dangerous, but because of how older versions handled user input:
Understanding the VDesk hangupphp3 Exploit: Analysis and Mitigation
Keep in mind that the draft might need more details, like IOCs (Indicators of compromise) and more specifics on how to detect the exploit. The "vdesk/hangup
The impact of the VDesk Hangup PHP3 exploit is severe. An attacker who exploits this vulnerability can:
: The script accepts parameters from the user and passes them directly to system-level execution functions (such as eval() , exec() , passthru() , or system() ).
to redirect unauthorized or invalid host requests specifically to /vdesk/hangup.php3 to ensure the session is safely discarded. Exploit-DB Further Exploration Review historical F5 FirePass vulnerabilities
Using the compromised server as a jumping-off point to attack other parts of the internal network. How to Stay Protected
What and web server software (e.g., Apache, Nginx, IIS) host your vDesk deployment?
