CVE-2024-25117 is a medium-severity vulnerability affecting the php-svg-lib library, which is utilized for scalable vector graphics (SVG) file parsing and rendering. The vulnerability arises from the library's failure to properly validate that the font-family does not contain a PHAR URL. This weakness can lead to remote code execution (RCE) on PHP versions below 8.0. Additionally, the library does not adequately check whether external references are allowed, potentially resulting in restrictions being bypassed or RCE occurring in projects that depend on it.
The significance of this vulnerability is heightened by its potential impact on applications that incorporate php-svg-lib without strict validation of the fontName value. If the fontName passed to the library is not double-checked, it could lead to serious security implications. Organizations using earlier versions of this library should prioritize updating to version 0.5.2, which addresses this issue.
As this vulnerability has been analyzed, organizations should remain vigilant about the risks associated with improper validation in libraries they employ. The urgency for defenders to act is moderate; organizations are advised to address this vulnerability in their upcoming patch cycles.
The vulnerability was published on February 21, 2024, and affects the php-svg-lib library versions prior to 0.5.2. Organizations are encouraged to stay informed about the latest updates and patches to mitigate potential threats.
Vulnerability Details
The official description of this vulnerability states that php-svg-lib fails to validate that font-family does not contain a PHAR URL. This could lead to RCE on PHP versions less than 8.0. The library's methods, such as `Style::fromAttributes()` and `Style::parseCssStyle()`, should implement checks to prevent dangerous values from being passed to other libraries. Additionally, libraries that rely on php-svg-lib could be susceptible to bypassing restrictions or remote code execution if the fontName is not thoroughly validated.
This vulnerability falls under multiple CWE classifications, including CWE-73 (External Control of File Name or Path), CWE-502 (Deserialization of Untrusted Data), and CWE-610 (Cross-site Scripting). With a CVSS score of 6.8, it is categorized as medium severity, indicating that while it poses a risk, it does not reach the critical level.
Technical Analysis
The root cause of this vulnerability lies in the library's inadequate validation processes. The attack vector is local, meaning that an attacker must have local access to exploit this vulnerability. The complexity of the attack is considered low, as it requires no special privileges or user interaction. The impact on confidentiality, integrity, and availability is categorized as low.
Risk & Impact Analysis
The real-world risk associated with CVE-2024-25117 primarily affects software projects utilizing php-svg-lib without proper validation measures. The potential for remote code execution, while dependent on the user’s environment and configurations, underscores the necessity for organizations to enforce strict security practices in their development processes.
Given that this vulnerability has a CVSS score of 6.8 and falls within the medium severity range, organizations should consider it a priority in their patch management strategies. The urgency for remediation of this vulnerability should be classified as moderate; organizations should schedule updates to their systems to incorporate the necessary security measures.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of php-svg-lib prior to 0.5.2 are affected by this vulnerability. Organizations should review their dependencies and ensure they are using the updated version.
Mitigation & Remediation
To mitigate this vulnerability, organizations should upgrade to php-svg-lib version 0.5.2 or later. If immediate updates are not possible, it is crucial to implement workarounds that involve strict validation of the font-name values being passed to the library. Additionally, organizations should consider implementing configuration hardening and network controls to limit exposure.
For further assistance in validating remediation effectiveness, organizations can explore our penetration testing services.
Detection Guidance
Organizations should monitor logs for indicators of unauthorized modifications to SVG files and any anomalies related to font-family attributes. Additionally, behavioral changes in applications utilizing php-svg-lib should be closely observed, particularly those involving external references in SVG files.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2024-25117 highlights the need for secure coding practices in library development. As libraries become more integral to application functionality, the importance of validating external inputs cannot be overstated. Security teams must learn from this vulnerability and ensure that their dependency management strategies include rigorous validation processes.
For organizations looking to strengthen their security posture, several resources are available, such as our penetration testing methodology and the vulnerability management program design guide.
In summary, as organizations navigate the complexities of software dependencies, proactive measures and continuous monitoring will be key in mitigating potential vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)