Wansview 1.0.2 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying oversized input strings. This vulnerability allows attackers to inject 2000-byte payloads into the Camera name and DID number fields during camera addition to trigger application crashes. With a CVSS score of 6.9, this vulnerability is classified as medium severity, which indicates a significant risk to organizations.
Risk to organizations includes potential service disruptions due to application crashes, affecting the availability of the Wansview service. Given the local attack vector, the risk is elevated for environments where physical access to devices is possible, making it critical for organizations to assess their exposure.
As of now, there are no public exploits or proof-of-concept (PoC) available for this vulnerability, but local attackers may very well develop such methods given the simplicity of the attack vector. Therefore, organizations should prioritize patching immediately.
The urgency for defenders is heightened due to the nature of the vulnerability. Organizations should implement monitoring and prepare for potential incidents until a patch is applied.
Vulnerability Details
The vulnerability in question is characterized as a buffer overflow, classified under CWE-120. It affects the Wansview product version 1.0.2 and has been published as CVE-2018-25297. The vulnerability allows local attackers to crash the application, which poses a risk to availability. The CVSS score indicates a medium severity level, reflecting the potential impact of successful exploitation.
The application is susceptible due to its handling of oversized input strings in the Camera name and DID fields. The lack of required privileges and user interaction makes it easier for attackers to exploit this vulnerability without needing elevated privileges or any specific user actions.
Technical Analysis
The root cause of this vulnerability lies in the insufficient validation of input data sizes, leading to a buffer overflow condition. Attackers can leverage this flaw to craft oversized input strings that exceed the allocated buffer memory, causing the application to crash.
The attack vector is local, meaning that an attacker needs physical access to the system running Wansview. The attack complexity is classified as low, indicating that the exploitation can be performed easily without complicated steps. Importantly, the attacker does not require any privileges or user interaction to execute the attack.
The vulnerability primarily impacts availability, as successful exploitation leads to application crashes. Confidentiality and integrity impacts are not applicable in this case. The overall assessment indicates that organizations using Wansview 1.0.2 should take immediate action to mitigate risks.
Risk & Impact Analysis
Real-world deployment risks are significant due to the potential for application crashes and subsequent service disruptions. The blast radius includes all instances of Wansview 1.0.2, making it imperative for organizations to assess their environments and determine their exposure to this vulnerability.
This vulnerability serves as a reminder of the importance of input validation in software development. Organizations must ensure that their applications are resilient against such buffer overflow attacks. The urgency assessment based on the CVSS score indicates that organizations should address this issue in their priority patch cycle.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
Currently, Wansview 1.0.2 is the affected version. Organizations should ensure they are not using this version to avoid potential exploitation. If they are, they must apply the necessary patches as soon as they become available.
Mitigation & Remediation
Organizations should monitor for updates from the vendor regarding patches. If a patch is available, it should be applied immediately. In the absence of a patch, organizations may consider implementing input validation controls to mitigate the risk, such as limiting the size of input fields.
For further guidance on securing applications, organizations can refer to our application security assessment services.
Detection Guidance
Organizations should monitor logs for unusual application behavior or crashes. Additionally, they should implement network monitoring to detect unauthorized access attempts and look for anomalies in user interactions.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2018-25297 highlights the importance of rigorous testing and validation in software development. This vulnerability serves as a reminder of the potential risks associated with inadequate input validation practices.
Security teams should focus on implementing comprehensive security assessments, including penetration testing methodology, to identify similar vulnerabilities across their applications.
Additionally, the trend of vulnerabilities like this emphasizes the need for continuous education and awareness training for developers on secure coding practices.
As always, organizations should prioritize their security posture by leveraging services such as red teaming to continuously evaluate their defenses against potential threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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