Plataforma
python
Componente
django-piston
Corregido en
0.2.2.1
CVE-2011-4103 is a critical remote code execution (RCE) vulnerability affecting Django Piston versions up to 0.2.2. This flaw stems from improper deserialization of YAML data, allowing attackers to execute arbitrary Python code. The vulnerability impacts applications leveraging Django Piston for API development and data serialization. A fix is available in version 0.2.2.1.
The vulnerability lies in the emitters.py file, specifically in how Django Piston handles YAML data. An attacker can craft malicious YAML input that, when deserialized using yaml.load, will execute arbitrary Python code on the server. This allows for complete system compromise, including data exfiltration, modification, and the installation of malware. The blast radius is significant, potentially affecting all users of the application if the API is exposed. This vulnerability shares similarities with other deserialization flaws, where untrusted data is processed without proper sanitization, leading to code execution. The potential for remote code execution makes this a high-priority vulnerability.
CVE-2011-4103 was publicly disclosed in 2018. While no active exploitation campaigns have been definitively linked to this specific CVE, the potential for remote code execution makes it a valuable target for attackers. The vulnerability is not currently listed on the CISA KEV catalog. Public proof-of-concept exploits are available, demonstrating the ease with which the vulnerability can be exploited.
Applications built using Django Piston for API development are at risk. This includes web applications, mobile backends, and other systems that rely on Django Piston for data serialization and API endpoints. Specifically, older projects that haven't been updated in several years are particularly vulnerable, as they are more likely to be running outdated versions of Django Piston.
• python / server:
Get-Process -Name python | Where-Object {$_.Path -like '*django-piston*'} | Select-Object ProcessId, Path• python / server:
Get-ChildItem -Path 'C:\Program Files\Python\Lib\site-packages\django_piston' -Recurse -Filter 'emitters.py'• generic web:
Inspect API endpoints for YAML data handling. Check access logs for requests containing YAML payloads.
• generic web:
Use curl to test API endpoints with crafted YAML payloads. Monitor for unusual server behavior or error messages.
discovery
disclosure
patch
Estado del Exploit
EPSS
0.82% (74% percentil)
Vector CVSS
The primary mitigation is to upgrade Django Piston to version 0.2.2.1 or later, which addresses the vulnerability. If upgrading is not immediately feasible, consider implementing input validation and sanitization on all YAML data received through the API. Web application firewalls (WAFs) can be configured to block requests containing suspicious YAML payloads. Restrict access to the API endpoints to trusted sources only. Monitor API logs for unusual activity or attempts to exploit the vulnerability. After upgrading, confirm the fix by attempting to load a known malicious YAML payload and verifying that it is rejected or handled safely.
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Análisis de vulnerabilidades y alertas críticas directamente en tu correo.
CVE-2011-4103 is a critical remote code execution vulnerability in Django Piston versions up to 0.2.2, allowing attackers to execute arbitrary Python code through improper YAML deserialization.
You are affected if your application uses Django Piston version 0.2.2 or earlier. Upgrade to 0.2.2.1 or later to mitigate the risk.
Upgrade Django Piston to version 0.2.2.1 or later. If upgrading isn't possible, implement input validation and sanitization for YAML data.
While no confirmed active campaigns are publicly known, the vulnerability's severity and ease of exploitation make it a potential target.
Refer to the relevant security advisories and discussions on the Django Piston project's website and related security forums.
Sube tu archivo de dependencias y detecta esta y otras CVEs al instante.
Sube tu archivo requirements.txt y te decimos al instante si estás afectado.