CVE-2024-0677 shines a light on a critical vulnerability lurking in the Pz-LinkCard WordPress plugin. This flaw exposes websites to SSRF attacks, posing a significant threat to their security and integrity. Let’s delve deeper into the discovery, implications, and potential countermeasures to safeguard your WordPress installations.
Main info:
| CVE | CVE-2024-0677 |
| Plugin | Pz-LinkCard <= 2.5.1 |
| Critical | High |
| All Time | 569 850 |
| Active installations | 30 000+ |
| Publicly Published | March 7, 2023 |
| Last Updated | March 7, 2023 |
| Researcher | Dmtirii Ignatyev |
| OWASP TOP-10 | A1: Injection |
| PoC | Yes |
| Exploit | No |
| Reference | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-0677 https://wpscan.com/vulnerability/0f7757c9-69fa-49db-90b0-40f0ff29bee7/ |
| Plugin Security Certification by CleanTalk |  |
Timeline
| February 15, 2023 | Plugin testing and vulnerability detection in the Pz-LinkCard have been completed |
| February 15, 2023 | I contacted the author of the plugin and provided a vulnerability PoC with a description and recommendations for fixing |
| March 7, 2024 | Registered CVE-2024-0677 |
Discovery of the Vulnerability
During rigorous testing of the Pz-LinkCard plugin, security researchers unearthed a serious SSRF vulnerability. This flaw enables attackers to manipulate the plugin through specially crafted shortcodes, paving the way for exploitation and compromise.
Understanding of SSRF attack’s
Server-Side Request Forgery (SSRF) allows attackers to send crafted requests from a vulnerable web application, effectively bypassing the server’s security controls. In WordPress, SSRF vulnerabilities can be exploited to access internal systems, bypass firewalls, and perform reconnaissance for further attacks.
Exploiting the SSRF Vulnerability
By injecting a malicious URL into the Pz-LinkCard plugin via a shortcode, attackers can trigger SSRF attacks. This enables them to make arbitrary requests to internal or external resources, potentially compromising sensitive data or executing further attacks from the server’s perspective.
POC:
- [blogcard url=”http://127.0.0.1:9000″]
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The CVE-2024-0677 vulnerability poses severe risks to WordPress websites. Attackers can leverage SSRF to:
- Access internal services and resources, such as databases or files.
- Perform reconnaissance to identify other vulnerable systems within the network.
- Execute malicious actions on behalf of the server, such as port scanning or data exfiltration.
- Launch attacks against third-party systems, potentially leading to legal ramifications or reputational damage.
Recommendations for Improved Security
To mitigate the risks associated with CVE-2024-0677 and similar SSRF vulnerabilities, consider the following measures:
- Implement Input Validation: Ensure that user-supplied URLs are properly sanitized and validated before processing. Implement strict allow-listing of acceptable URLs to prevent SSRF attacks.
- Network Segmentation: Implement network segmentation to restrict access between different network segments, limiting the impact of SSRF attacks.
- Security Awareness Training: Educate website administrators and developers about SSRF vulnerabilities and best practices for secure plugin development and usage.
By taking proactive measures to address SSRF vulnerabilities like CVE-2024-0677, WordPress website owners can enhance their security posture and safeguard against potential exploitation. Stay vigilant, stay secure.
#WordPressSecurity #SSRF #WebsiteSafety #StayProtected #HighVulnerability
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