CVE-2018-17480 is a high-severity vulnerability affecting Google Chrome prior to version 71.0.3578.80. This vulnerability allows execution of user-supplied JavaScript during array deserialization, leading to an out-of-bounds write in the V8 engine. The flaw can be exploited by remote attackers through a crafted HTML page, potentially allowing them to execute arbitrary code within a sandboxed environment.
The CVSS score for this vulnerability is 8.8, indicating a high level of severity. An attack vector of network, combined with low attack complexity and no required privileges, allows attackers to exploit this vulnerability with relative ease if user interaction is involved. Given its potential impact on confidentiality, integrity, and availability, organizations must prioritize addressing this vulnerability.
As this vulnerability is included in the Known Exploited Vulnerabilities (KEV) catalog, it emphasizes the urgency for organizations to apply patches immediately to prevent exploitation. The potential consequences of a successful attack could be significant, making it crucial for security teams to assess their risk exposure.
Organizations should prioritize patching immediately, as the risk to organizations includes unauthorized code execution and potential data breaches. This vulnerability represents a clear threat, particularly in environments where Chrome is widely used.
Vulnerability Details
The official description states that this vulnerability allows execution of user supplied Javascript during array deserialization leading to an out of bounds write in V8 in Google Chrome prior to 71.0.3578.80. The vulnerability is classified under CWE-787, which pertains to out-of-bounds writes. It was published on December 11, 2018.
Technical Analysis
The root cause of this vulnerability lies in how the V8 engine handles array deserialization. A remote attacker can exploit the vulnerability by crafting a malicious HTML page that, when opened by a user, executes arbitrary JavaScript code. The attack complexity is low, as it requires no special privileges but does necessitate user interaction. The impact on confidentiality, integrity, and availability is high, as attackers can gain control over the affected system.
Risk & Impact Analysis
The risk to organizations includes the possibility of remote code execution and subsequent unauthorized access to sensitive information. The blast radius of such an attack could extend across multiple systems that rely on the affected versions of Chrome. Given its presence in the KEV catalog, organizations must assess their exposure and prioritize remediation based on CVSS scoring and the urgency of the threat.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
This vulnerability affects all versions of Google Chrome prior to 71.0.3578.80. Additional affected products include Red Hat Enterprise Linux Desktop, Server, and Workstation, and Debian Linux versions prior to 9.0.
Mitigation & Remediation
To mitigate this vulnerability, organizations should apply the latest patches as provided by the vendor. For Google Chrome, users should upgrade to version 71.0.3578.80 or later. Additionally, organizations can utilize penetration testing to identify potential weaknesses and validate their defenses.
Detection Guidance
Organizations should monitor logs for any indicators of exploitation attempts, such as unusual JavaScript executions or access patterns that deviate from the norm. Behavioral anomalies within the V8 engine and browser crash reports can also serve as critical indicators.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2018-17480 lies in its representation of the challenges in web browser security, particularly regarding JavaScript execution. Security teams should take this opportunity to reinforce their defenses against similar vulnerabilities. A strategic takeaway is the importance of maintaining an up-to-date security posture, including regular updates and reviews of existing security measures.
For more insights on vulnerability management, organizations can refer to our guide on building a vulnerability management program and the importance of proactive security measures.
In conclusion, the presence of this vulnerability in the KEV catalog underscores the necessity for organizations to prioritize their patching efforts.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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