CVE-2017-11290 in Connect
Summary
by MITRE
An issue was discovered in Adobe Connect 9.6.2 and earlier versions. A UI Redress (or Clickjacking) vulnerability exists. This issue has been resolved by adding a feature that enables Connect administrators to protect users from UI redressing (or clickjacking) attacks.
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Analysis
by VulDB Data Team • 01/26/2021
Adobe Connect versions 9.6.2 and earlier contain a user interface redress vulnerability that allows attackers to execute clickjacking attacks against users. This security flaw enables malicious actors to deceive users into performing unintended actions by overlaying invisible or transparent web elements over legitimate interface components. The vulnerability arises from insufficient protection mechanisms that should prevent malicious websites from embedding Adobe Connect content within iframes or other container elements without proper authorization.
The technical implementation of this vulnerability stems from the absence of proper frame-busting techniques and security headers that would prevent the application from being embedded in third-party web pages. Attackers can craft malicious web pages that load legitimate Adobe Connect sessions within hidden iframes, tricking users into clicking on seemingly benign interface elements that actually perform malicious actions. This type of attack falls under the CWE-1021 category of Improper Restriction of Rendered UI Elements and aligns with ATT&CK technique T1071.004 for Application Layer Protocol: DNS.
The operational impact of this vulnerability is significant as it allows attackers to perform unauthorized actions on behalf of authenticated users. An attacker could potentially manipulate meeting settings, access sensitive session data, or perform administrative functions without the user's knowledge or consent. The vulnerability affects the integrity and confidentiality of user sessions, particularly in enterprise environments where Adobe Connect is used for sensitive business communications and training sessions.
Organizations can mitigate this vulnerability by upgrading to Adobe Connect version 9.6.3 or later, which includes built-in protection mechanisms against UI redressing attacks. The updated version implements proper security headers including X-Frame-Options and Content Security Policy directives that prevent the application from being embedded in unauthorized contexts. Administrators should also implement additional security measures such as configuring proper CSP policies, monitoring for suspicious embedding patterns, and educating users about the risks of clicking on untrusted links that might lead to malicious pages attempting clickjacking attacks.