CVE-2015-7645 is a high-severity vulnerability affecting Adobe Flash Player versions 18.x through 18.0.0.252 and 19.x through 19.0.0.207 on Windows and macOS, as well as 11.x through 11.2.202.535 on Linux. This vulnerability allows remote attackers to execute arbitrary code through a specially crafted SWF file, which was actively exploited in the wild as of October 2015. With a CVSS score of 7.8, organizations must recognize the seriousness of this issue, especially given its potential impact on users.
Risk to organizations includes compromised systems and unauthorized access to sensitive data due to this arbitrary code execution vulnerability. Since Adobe Flash Player has reached its end-of-life, the urgency for defenders is critical. Organizations still using this software must prioritize disconnecting it from their networks to mitigate risks.
The vulnerability has been included in the Known Exploited Vulnerabilities (KEV) catalog, indicating that it has been actively exploited. For this reason, immediate action is necessary to prevent exposure.
As of now, the impacted versions of Adobe Flash Player are no longer supported, and organizations that continue to use it should seek alternative solutions to avoid the risks associated with this vulnerability.
Vulnerability Details
The official CVE description states: 'Adobe Flash Player 18.x through 18.0.0.252 and 19.x through 19.0.0.207 on Windows and OS X and 11.x through 11.2.202.535 on Linux allows remote attackers to execute arbitrary code via a crafted SWF file, as exploited in the wild in October 2015.' This vulnerability is categorized as a privilege escalation issue, where attackers may leverage it to gain unauthorized control over affected systems.
The CVSS score for this vulnerability is 7.8, which classifies it as high severity. The potential impact includes high confidentiality, integrity, and availability risks due to arbitrary code execution. The vulnerability was disclosed on October 15, 2015.
Technical Analysis
The root cause of this vulnerability lies in the processing of crafted SWF files, which can lead to type confusion. The attack vector for this vulnerability is local, requiring user interaction to trigger the exploit. With low attack complexity and no privileges required, the threat is significant, particularly as users may be unaware of the risks when interacting with malicious content.
Confidentiality, integrity, and availability impacts are all rated high, meaning that successful exploitation could lead to complete compromise of the affected system.
Risk & Impact Analysis
Organizations utilizing Adobe Flash Player are at substantial risk of exploitation due to this vulnerability, particularly if they have not transitioned to alternative solutions. The potential blast radius is significant, as this vulnerability affects multiple versions across several operating systems. The urgency for remediation is critical given the active exploitation in the wild and the high CVSS score.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | Yes |
Ransomware Use | Yes |
Affected Versions
The following versions of Adobe Flash Player are affected by this vulnerability: 18.x through 18.0.0.252, 19.x through 19.0.0.207 on Windows and OS X, and 11.x through 11.2.202.535 on Linux. Organizations should recognize that all versions prior to vendor patch are susceptible.
Mitigation & Remediation
Organizations should prioritize patching immediately. Since Adobe Flash Player is end-of-life, it is recommended to disconnect it from networks and replace it with alternative solutions. Additionally, engaging in penetration testing can help identify any potential vulnerabilities that may remain unaddressed.
Detection Guidance
Organizations are advised to monitor for unusual log entries associated with Adobe Flash Player usage, as well as behavioral anomalies that may indicate exploitation. Implementing network signatures to detect malicious SWF files and tracking system changes can assist in identifying potential compromise.
AppSecure Threat Intelligence Insight
CVE-2015-7645 is a clear example of the risks associated with using end-of-life software. The trends indicate that vulnerabilities of this nature will continue to be exploited, particularly by ransomware campaigns. It is crucial for organizations to remain vigilant and proactive in their cybersecurity posture by regularly updating their systems and conducting comprehensive security assessments. For further guidance on securing systems, consider reading our penetration testing methodology and our approach to vulnerability management to mitigate such threats effectively.
By integrating robust security measures and maintaining awareness of emerging threats, organizations can significantly reduce their risk profile and safeguard their critical assets.
Known Exploitation Timeline
This vulnerability was added to the KEV catalog on March 3, 2022, highlighting its significance and the ongoing need for vigilance against exploitation.
EPSS Risk Context
The EPSS score for CVE-2015-7645 is 0.845, placing it in the 99th percentile for risk, indicating a high likelihood of exploitation. Organizations must take this data into account when assessing their risk management strategies.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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