Logic Flaw: Full Unauthorized Access via Improper Session Invalidation on Account Deactivation

Based on the provided image, I need to extract and summarize the key information about the vulnerability in Chinese. 1. Vulnerability Overview (漏洞概述): Title: Account Deactivation Module Full Persistent Unauthorized Access for All Roles via Improper Session Invalidation (Logic Flaw). Description: The application fails to invalidate session access or session tokens when an account is deactivated. This allows authenticated users to retain access even after deactivation. It's a logic flaw where the system doesn't properly handle session termination upon account deactivation. Impact: Unauthorized continued access, bypass of access control, potential for privilege escalation (if the deactivated user had high privileges), and data leakage. 2. Scope of Impact (影响范围): Affected Functionality: Account deactivation and authentication logic. Affected Stakeholders: All authenticated stakeholders, including administrators and content creators. Attack Scenario: An authenticated user logs in, gets a session token, then gets their account deactivated (by admin or self). The session token remains valid, allowing continued access. 3. Remediation (修复方案): Immediately invalidate all active sessions when an account is deactivated. Implement session token refresh or renewal policies (e.g., short expiry). Introduce proper session expiration or account deactivation mechanisms to prevent stale sessions. Ensure the backend logic checks account status (active/deactivated) against session validity on every request. 4. POC Code (POC代码): The image contains a "Ready Video POC" section with a link, but no actual code block is visible in the text. Wait, looking closely at the bottom, there is a link: . There is no code block in the text itself. I need to check if there's any code. Scanning the text... "Steps to Reproduce (PoC)" lists steps but no code. "Ready Video POC" is just a link. So, there is no code block to extract. I will mention the link if relevant, but the prompt asks to extract code blocks if present. Since there are none, I will skip the code extraction part or mention the link as the POC reference. 5. Drafting the Summary (in Chinese): 漏洞概述: 账户停用模块存在逻辑缺陷，导致会话验证失效。当账户被停用时，系统未能正确使会话访问或会话令牌失效。这允许已认证用户在账户停用后继续保留访问权限，导致所有角色的持续未授权访问。 影响范围: 受影响功能: 账户停用和身份验证逻辑。 受影响方: 所有已认证的利益相关者，包括管理者和内容创作者。 攻击场景: 用户登录后获得会话令牌，随后账户被停用，但令牌依然有效，攻击者可继续访问。 后果: 绕过访问控制、权限提升、数据泄露。 修复方案: 停用账户时立即使所有活跃会话失效。 实施会话令牌刷新或更新策略（例如设置较短的过期时间）。 引入适当的会话过期或账户停用机制，防止陈旧会话。 确保后端逻辑在每次请求时检查账户状态（活跃/停用）与会话有效性。 POC: 页面底部提供了一个YouTube视频链接作为POC演示，未包含具体的代码块。 6. Refining: Make it concise and strictly follow the requested format. 漏洞概述: 账户停用模块存在逻辑缺陷（会话验证不当）。当账户被停用时，系统未能使会话令牌失效，导致已认证用户（包括管理员）在账户停用后仍能保持登录状态并访问系统。 影响范围: 受影响功能: 账户停用及身份验证逻辑。 受影响对象: 所有已认证用户（管理员、内容创作者等）。 潜在危害: 绕过访问控制、权限提升、数据泄露、持续未授权访问。 修复方案: 停用账户时立即使所有活跃会话失效。 实施会话令牌刷新策略（如设置较短的过期时间）。 确保后端逻辑在每次请求时验证账户状态（是否被停用）。 POC: 页面未提供具体代码，仅提供了一个YouTube视频链接作为演示： (The link is cut off in the image, I will just mention the link exists). Actually, looking at the very bottom, the link is . I will just note that a video POC link is present. Let's re-read the prompt: "If the page contains POC code or exploit code, be sure to extract the code block completely." Since there is no code block, I don't need to extract anything, but I should mention the POC section content. Final check of the text: "Steps to Reproduce (PoC)" -> Text steps. "Ready Video POC:" -> Link. Okay, ready to generate the response. 漏洞概述 该漏洞是一个逻辑缺陷，涉及账户停用模块中的会话验证不当。当用户账户被停用时，系统未能正确使会话访问或会话令牌失效。这导致已认证用户（包括管理员和内容创作者）在账户被停用后，仍能利用现有的会话令牌保持登录状态，从而获得持续的非授权访问权限。 影响范围 受影响功能： 账户停用逻辑和身份验证机制。 受影响对象： 所有已认证的利益相关者（包括管理员和内容创作者）。 攻击场景： 攻击者（或已认证用户）登录系统获取会话令牌，随后其账户被停用（无论是管理员操作还是自助操作）。由于会话未被清除，攻击者仍可继续访问系统。 潜在危害： 绕过访问控制、权限提升（如果停用前拥有高权限）、数据泄露、持续未授权访问。 修复方案 1. 立即失效会话： 在停用账户时，系统必须立即使该账户的所有活跃会话失效。 2. 令牌刷新策略： 实施会话令牌刷新或更新策略（例如设置较短的过期时间），以减少风险窗口。 3. 状态检查： 引入适当的会话过期或账户停用机制，确保后端逻辑在每次请求时都会检查账户状态（活跃/停用）与会话的有效性。 POC (概念验证) 页面未提供具体的代码块，但在底部提供了一个视频演示链接： (链接在截图中被截断) 复现步骤 (Steps to Reproduce): 1. 以用户身份登录应用程序。 2. 从已认证用户处获取会话令牌。 3. 停用该用户账户（通过管理员操作或自助停用）。 4. 验证该用户是否仍能通过之前的会话令牌访问、修改数据或与应用程序交互。 5. 确认该用户是否能在账户停用后继续访问系统。

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Logic Flaw: Full Unauthorized Access via Improper Session Invalidation on Account Deactivation

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Logic Flaw: Full Unauthorized Access via Improper Session Invalidation on Account Deactivation

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