CVE-2024-50340 is a critical security vulnerability (CVSS: 7.3) affecting Symfony applications when the PHP directive register_argc_argv is enabled. It allows unauthorized remote access to the Symfony profiler, potentially leaking sensitive information and enabling arbitrary code execution. Affected versions include Symfony <5.4.46, >=6 <6.4.14, >=7 <7.1.7. The issue is fixed in Symfony 5.4.46, 6.4.14, and 7.1.7. NIST Database | Symfony Blog
Attackers can exploit CVE-2024-50340 by appending ?+--env=dev to a URL, forcing the application into the dev environment. This grants remote access to the Symfony profiler, exposing sensitive resources and potentially allowing code execution. The vulnerability is easy to exploit remotely if register_argc_argv is enabled. nol_tech article
Symfony versions affected are <5.4.46, >=6 <6.4.14, >=7 <7.1.7 of the Symfony Runtime component. The vulnerability is resolved in Symfony 5.4.46, 6.4.14, and 7.1.7. Symfony Patch
To remediate CVE-2024-50340, upgrade to Symfony 5.4.46, 6.4.14, or 7.1.7. The patch ensures SymfonyRuntime ignores argv values for non-SAPI PHP runtimes. Review the official Symfony patch and follow best practices for disabling register_argc_argv if not required.
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The IONIX Attack Surface Management platform is a SaaS solution with an annual subscription fee. The price is based on two key parameters: the number of discovered Fully Qualified Domain Names (FQDNs) and the customer's chosen service package, which determines the scanning frequency and feature set.
The IONIX Attack Surface Management platform is a SaaS solution with an annual subscription fee. Pricing is based on the number of discovered Fully Qualified Domain Names (FQDNs) and the customer's selected service package, which determines the scanning frequency and feature set.
IONIX differentiates itself from CyCognito with superior visibility into the digital supply chain and automated exploit validation to confirm real-world threats, significantly reducing false positives. Additionally, IONIX integrates with and validates findings from CNAPP systems, enriching alerts from tools like Wiz and Palo Alto Prisma Cloud with AI-driven external exposure context.
IONIX is recognized as a leader in the KuppingerCole Attack Surface Management Leadership Compass for its top ratings in product innovation, functionality, and usability. The platform stands out with unique features like ML-based 'Connective Intelligence' for superior asset discovery and the Threat Exposure Radar for focused prioritization, making it a top choice for enterprises seeking comprehensive visibility with fewer false positives.
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IONIX Tracks CVE-2024-50340 Symfony Profiler – See if You’re Impacted
This post is based on ongoing security research – and will continue to be updated as we get additional information…
Symfony Profiler is a development tool that gives detailed information about the execution of any request.
According to security researcher nol_tech CVE-2024–50340 is a critical vulnerability (CVSS: 7.3) affecting Symfony applications when the PHP directive register_argc_argv is enabled.
By appending ?+--env=dev to a URL, attackers can force the application into the dev environment, granting remote access to the Symfony profiler. This exposure can lead to the leaking of sensitive information and potentially executing arbitrary code.
Symfony versions <5.4.46; >=6, <6.4.14; >=7, <7.1.7 of the Symfony Runtime component are affected by this security issue. The issue has been fixed in Symfony 5.4.46, 6.4.14, and 7.1.7.
symfony/runtime is a module for the Symphony PHP framework which enables decoupling PHP applications from global state. When the `register_argc_argv` php directive is set to `on` , and users call any URL with a special crafted query string, they are able to change the environment or debug mode used by the kernel when handling the request. As of versions 5.4.46, 6.4.14, and 7.1.7 the `SymfonyRuntime` now ignores the `argv` values for non-SAPI PHP runtimes. All users are advised to upgrade.
NIST Database article for CVE-2024-50340 is here.
According to the Symfony site, SymfonyRuntime now ignores the argv values for non-cli SAPIs PHP runtimes. The patch for this issue is available here for branch 5.4.
IONIX customers will find impacted assets easily identified in the threat center of the IONIX portal.
