CVE-2023-27163 Scanner

Request-Baskets is a software application widely used by developers and IT professionals for processing HTTP requests for testing and development purposes. It is implemented to simulate HTTP requests in various scenarios and is a common tool in development and testing environments. With its ease of use, it helps developers test different HTTP response scenarios. Organizations often integrate Request-Baskets in pre-production environments to streamline API testing. Due to its popularity, the application maintains a robust community and regularly receives updates for improved functionality.

The Server-Side Request Forgery (SSRF) vulnerability in Request-Baskets enables an attacker to make the vulnerable server perform unauthorized requests to internal or external systems. This vulnerability is particularly concerning as it allows the exploitation of internal services that are not otherwise accessible from the outside network. Attackers can leverage SSRF to bypass network security controls and access sensitive data. Request-Baskets versions 1.2.1 are affected by this vulnerability due to inadequate validation of user-supplied input in the forward_url parameter. This flaw potentially puts the server's integrity at risk, depending on the network's configuration.

Technical exploitation involves manipulating the forward_url parameter when creating a new basket. Specifically, Request-Baskets versions 1.2.1 fail to properly sanitize user inputs, enabling submissions that target unintended endpoints. Attackers can craft requests that forward to chosen destinations via the basket's URL, thus interacting with restricted services. Validation checks during the input phase are insufficient, allowing malformations that contribute to exploitation. Confirming the SSRF involves checking HTTP status codes and content type in responses validating the malicious request execution. Exploitation can be confirmed through observing consistent patterns in server logs following crafted request attempts.

Exploitation of this vulnerability can lead to unauthorized internal network service access or external data exfiltration. Attackers might execute additional attacks on internal endpoints, such as port scanning or accessing unintended third-party services. In certain configurations, data retrieval from the internal server may expose sensitive user information or business data, compromising privacy and security. Network disruptions and unauthorized resource consumption may occur depending on how the SSRF is utilized. Such vulnerabilities can also serve as groundwork for more severe breaches if combined with other exploits.

REFERENCES

• https://github.com/darklynx/request-baskets
• https://hub.docker.com/r/darklynx/request-baskets
• https://infosecwriteups.com/exploit-analysis-request-baskets-v1-2-1-server-side-request-forgery-ssrf-688fffd1f424
• https://nvd.nist.gov/vuln/detail/CVE-2023-27163