In PHP versions 8.1.* before 8.1.31, 8.2.* before 8.2.26, and 8.3.* before 8.3.14, this vulnerability allows a hostile MySQL server to cause the client to disclose the content of its heap. This heap may contain data from other SQL requests and potentially sensitive information from different users connected to the same server. The CVSS score of 5.8 indicates a medium severity, necessitating attention from organizations utilizing affected PHP versions.
Risk to organizations includes potential data exposure leading to unauthorized access or data leakage. Given the nature of the vulnerability and its exploitation status, organizations should address this in their priority patch cycle.
As no public exploit has been confirmed for this vulnerability, it is essential to remain vigilant and monitor for any changes in the threat landscape that may increase its exploitation potential.
Organizations should prioritize patching immediately to mitigate the risks associated with this vulnerability.
Vulnerability Details
In PHP versions 8.1.* before 8.1.31, 8.2.* before 8.2.26, 8.3.* before 8.3.14, a hostile MySQL server can cause the client to disclose the content of its heap containing data from other SQL requests and possible other data belonging to different users of the same server. This vulnerability is classified under CWE-125 (Out-of-bounds Read) and CWE-200 (Information Exposure).
The CVSS score for this vulnerability is 5.8, indicating medium severity. The attack vector is adjacent network, requiring low privileges and no user interaction. The confidentiality impact is high, while integrity and availability impacts are none.
Technical Analysis
The root cause of this vulnerability stems from improper handling of data by the PHP client when interacting with hostile MySQL servers. The attack vector being adjacent network suggests that the attacker must be on the same local network. The attack complexity is high, as it requires low privileges to exploit.
No user interaction is required for exploitation, which heightens the risk. Given the high confidentiality impact, organizations should be proactive in securing their PHP environments.
Risk & Impact Analysis
Organizations using affected versions of PHP may face significant risks due to the potential exposure of sensitive information. The blast radius could include all users connected to the same MySQL server, increasing the urgency for patching. The medium severity and high confidentiality impact suggest that this vulnerability should be addressed as part of an organization's immediate security posture.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of PHP prior to 8.1.31, 8.2.26, and 8.3.14 are affected. Organizations should ensure they upgrade to these versions or later to mitigate the risks associated with this vulnerability.
Mitigation & Remediation
To mitigate this vulnerability, organizations should update their PHP installations to the latest versions. For those unable to patch immediately, implementing network controls to restrict access to MySQL servers can help reduce exposure. Regular monitoring for anomalous behavior can also be beneficial.
Detection Guidance
Organizations should monitor logs for any unusual access patterns or errors that may indicate attempts to exploit this vulnerability. Additionally, behavioral anomalies within applications that utilize PHP and MySQL should be scrutinized.
AppSecure Threat Intelligence Insight
This vulnerability represents a significant risk, particularly for applications that rely heavily on PHP and MySQL. Security teams should prioritize ongoing vulnerability assessments and implement robust security measures to prevent potential data leaks. For more insights on managing vulnerabilities, organizations can refer to our vulnerability management program and our detailed penetration testing methodology guides. Ensuring a proactive approach to security can significantly reduce the chances of successful exploitation.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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