CVE-2023-26442 : Vulnerability Insights and Analysis

This is a detailed overview of CVE-2023-26442, providing insights into the nature of the vulnerability, its impact, technical details, and mitigation strategies.

Understanding CVE-2023-26442

The vulnerability identified as CVE-2023-26442 revolves around a scenario involving the configuration of Cacheservice with a sproxyd object-storage backend. This setup allowed the Cacheservice to follow HTTP redirects issued by the backend, potentially leading to a server-side request-forgery attack.

What is CVE-2023-26442?

In the context of CVE-2023-26442, if Cacheservice was set up to interact with a sproxyd object-storage backend, an attacker with access to certain network capabilities could intercept and replay HTTP requests. By exploiting this, the attacker could direct the Cacheservice to connect to unauthorized resources, posing a significant security risk. It's worth noting that there are currently no known public exploits targeting this vulnerability.

The Impact of CVE-2023-26442

The impact of CVE-2023-26442 is categorized by a CVSS v3.1 base score of 3.2, indicating a low severity level. The attack complexity is considered high, with an attack vector of local access. While the confidentiality impact is low, the potential for a server-side request-forgery attack could lead to unauthorized data access or manipulation. However, the availability and integrity impacts are assessed as none.

Technical Details of CVE-2023-26442

This section delves into the vulnerability description, affected systems and versions, as well as the exploitation mechanism associated with CVE-2023-26442.

Vulnerability Description

The vulnerability arises from the ability of Cacheservice to follow HTTP redirects when connecting to a sproxyd object-storage backend. This behavior could be exploited by an attacker to perform a server-side request-forgery attack, influencing the Cacheservice to access unintended resources.

Affected Systems and Versions

The specific product impacted by CVE-2023-26442 is the OX App Suite, developed by OX Software GmbH. In particular, versions equal to or less than 8.10 are deemed affected by this vulnerability when configured to utilize a sproxyd object-storage backend.

Exploitation Mechanism

The exploitation of CVE-2023-26442 involves an attacker with access to a local or restricted network capable of intercepting and replaying HTTP requests to the sproxyd service. By manipulating these requests, the attacker could trick the Cacheservice into communicating with unauthorized resources, facilitating a server-side request-forgery attack.

Mitigation and Prevention

To address CVE-2023-26442, immediate steps, long-term security practices, and the importance of applying patches and updates are crucial components in mitigating the associated risks.

Immediate Steps to Take

It is recommended to disable the ability of Cacheservice to follow HTTP redirects when connecting to sproxyd resources. This mitigation measure can help prevent server-side request-forgery attacks and unauthorized access to resources.

Long-Term Security Practices

Implementing robust network security measures, conducting regular security assessments, and staying informed about potential vulnerabilities in software dependencies are essential for enhancing overall cybersecurity posture.

Patching and Updates

Keeping software up to date with the latest patches and security fixes is vital in addressing known vulnerabilities and strengthening the resilience of the IT environment against potential threats. Regularly monitoring security advisories and applying updates promptly can help mitigate risks associated with CVE-2023-26442.