CVE-2020-4547 in Jazz Foundation
Summary
by MITRE • 01/28/2021
IBM Jazz Foundation products could allow a remote attacker to hijack the clicking action of the victim. By persuading a victim to visit a malicious Web site, a remote attacker could exploit this vulnerability to hijack the victim's click actions and possibly launch further attacks against the victim. IBM X-Force ID: 183315.
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Analysis
by VulDB Data Team • 02/20/2021
The vulnerability identified as CVE-2020-4547 affects IBM Jazz Foundation products and represents a sophisticated click hijacking attack vector that exploits the trust relationship between web browsers and web applications. This vulnerability falls under the broader category of user interface redressing and clickjacking attacks, which manipulate user interactions to execute unintended actions. The flaw specifically targets the way these products handle user click events, creating a pathway for attackers to intercept and redirect user interactions. The IBM X-Force ID 183315 designation indicates this vulnerability was recognized and tracked by IBM's security team, highlighting the potential severity of the issue within their product ecosystem.
The technical implementation of this vulnerability involves the manipulation of web application interfaces to create deceptive user experiences where legitimate user actions can be redirected or captured by malicious actors. Attackers can construct malicious web pages that exploit the click hijacking mechanism to capture user clicks intended for legitimate applications. This occurs when the IBM Jazz Foundation products fail to properly validate or sanitize click events, allowing external web content to interfere with normal user interaction patterns. The vulnerability likely stems from insufficient input validation and inadequate protection against cross-site scripting attacks, which are commonly categorized under CWE-74 and CWE-79 according to the Common Weakness Enumeration framework.
The operational impact of CVE-2020-4547 extends beyond simple inconvenience to potentially enable more serious security breaches. When successful, this attack can allow remote attackers to execute unauthorized actions within the targeted application environment, potentially leading to data compromise, privilege escalation, or further exploitation. The vulnerability creates a persistent threat vector where users can be unknowingly redirected to malicious sites that capture their interactions and then use those captured actions to perform unauthorized operations. This type of attack is particularly dangerous in enterprise environments where users may have elevated privileges within the Jazz Foundation applications, making the potential impact significantly higher.
Mitigation strategies for this vulnerability should focus on implementing robust click event validation and proper security headers to prevent click hijacking attacks. Organizations should deploy Content Security Policy (CSP) headers that restrict the ability of external domains to interact with the application's user interface elements. The implementation of frame-busting techniques and proper sandboxing of external content can help prevent malicious sites from capturing user interactions. Additionally, regular security updates and patches from IBM should be applied promptly to address this vulnerability. According to ATT&CK framework category T1059, this vulnerability could be exploited as part of a broader attack chain involving user interaction and privilege escalation techniques, making comprehensive endpoint protection and user awareness training essential components of the security posture.