CVE-2023-38059 : Exploit Details and Defense Strategies
Learn about CVE-2023-38059, a vulnerability in OTRS allowing external image loading, potentially leading to IP retrieval. Mitigation steps and solutions included.
A security vulnerability has been identified in OTRS and OTRS Community Edition that allows the loading of external images, even if the configuration blocks it. This could potentially lead to the retrieval of a user's IP address.
Understanding CVE-2023-38059
This CVE affects OTRS versions prior to 7.0.47 and 8.0.37, as well as ((OTRS)) Community Edition versions up to 6.0.34.
What is CVE-2023-38059?
The vulnerability in CVE-2023-38059 allows an attacker to load external images by using protocol-relative URLs, bypassing the configured restrictions. By exploiting this issue, the attacker may retrieve the IP address of the user.
The Impact of CVE-2023-38059
The impact of this vulnerability is categorized as 'Medium' with a CVSS v3.1 base score of 5.3. It falls under CAPEC-37, which involves the retrieval of embedded sensitive data.
Technical Details of CVE-2023-38059
This section outlines the specific details of the vulnerability, including affected systems, versions, and the exploitation mechanism.
Vulnerability Description
The loading of external images is not blocked, even if configured, when an attacker uses protocol-relative URLs in the payload. This can be exploited to retrieve the IP address of the user.
Affected Systems and Versions
- OTRS versions before 7.0.47 and 8.0.37
- ((OTRS)) Community Edition versions up to 6.0.34
Exploitation Mechanism
An attacker can exploit this vulnerability by crafting a payload with protocol-relative URLs to load external images and retrieve the user's IP address.
Mitigation and Prevention
To mitigate the risks associated with CVE-2023-38059, immediate steps can be taken along with long-term security practices.
Immediate Steps to Take
Update OTRS installations to versions 7.0.47 or 8.0.37 to address this vulnerability and prevent potential exploitation.
Long-Term Security Practices
Regularly update and patch OTRS installations to stay protected against known vulnerabilities and ensure a secure environment.
Patching and Updates
Ensure timely application of security patches and updates provided by the OTRS vendor to maintain the integrity of the system and protect against threats.