Falhas do tipo CWE-367

800 resultados

Condição de corrida entre verificação e uso (TOCTOU)

A aplicação verifica uma condição (ex: arquivo existe, usuário tem permissão) e depois atua sobre ela, mas entre a verificação e a ação outro processo pode alterar o estado. Um atacante explora esse intervalo para burlar controles de segurança ou acessar recursos que não deveria.

Exemplo

Um programa verifica se um arquivo é seguro para ler (if (arquivo_existe && nao_eh_symlink)), depois abre e processa. Um atacante substitui o arquivo por um symlink apontando para /etc/passwd entre a verificação e a leitura, conseguindo acessar dados sensíveis.

Como mitigar

Use operações atômicas do SO (open com flags O_NOFOLLOW, O_EXCL; fstat em vez de stat; operações que verificam e atuam em uma única chamada). Implemente locks/mutexes se lógica complexa for necessária, e valide o estado novamente após adquirir recurso.

CVE-2026-32988MEDIUMOpenClaw < 2026.3.11 - Sandbox Boundary Bypass via Unvalidated Temporary File CreationEPSS 0.1%CVE-2024-53018MEDIUMTime-of-check Time-of-use (TOCTOU) Race Condition in Camera DriverEPSS 0.1%CVE-2026-32977MEDIUMOpenClaw < 2026.3.11 - Sandbox Boundary Bypass via Unanchored writeFile Commit PathEPSS 0.1%CVE-2026-49958MEDIUMHermes WebUI < 0.51.303 TOCTOU Race Condition via git_discardEPSS 0.1%CVE-2024-53016MEDIUMTime-of-check Time-of-use (TOCTOU) Race Condition in Camera DriverEPSS 0.1%CVE-2024-45565HIGHTime-of-check Time-of-use (TOCTOU) Race Condition in Camera DriverEPSS 0.1%CVE-2026-43529LOWOpenClaw < 2026.4.10 - Time-of-Check-Time-of-Use (TOCTOU) Race Condition in exec Script Preflight ValidatorEPSS 0.1%CVE-2025-21431MEDIUMTime-of-check Time-of-use (TOCTOU) Race Condition in Automotive OS PlatformEPSS 0.1%CVE-2023-33119HIGHTime-of-check Time-of-use (TOCTOU) Race Condition in HypervisorEPSS 0.1%CVE-2026-58716MEDIUMIn multiple locations, there is a possible time-of-check to time-of-use due to a race condition. This could lead to local escalation of privEPSS 0.1%CVE-2026-20454MEDIUMIn geniezone, there is a possible out of bounds write due to a race condition. This could lead to local escalation of privilege if a malicioEPSS 0.1%CVE-2026-41051MEDIUMcsync2 uses insecure temporary directories when compiled with C99 or laterEPSS 0.1%CVE-2024-38406HIGHTime-of-check Time-of-use (TOCTOU) Race Condition in CameraEPSS 0.1%CVE-2024-38407HIGHTime-of-check Time-of-use (TOCTOU) Race Condition in CameraEPSS 0.1%CVE-2024-45560HIGHTime-of-check Time-of-use (TOCTOU) Race Condition in CameraEPSS 0.1%CVE-2024-38418HIGHTime-of-check Time-of-use (TOCTOU) Race Condition in Camera LinuxEPSS 0.1%CVE-2026-3428MEDIUMA Download of Code Without Integrity Check vulnerability in the update modules in ASUS Member Center(华硕大厅) allows a local user to achieve prEPSS 0.1%CVE-2026-25278HIGHTime-of-check Time-of-use (TOCTOU) Race Condition in Automotive Software platform based on QNXEPSS 0.1%CVE-2026-35374MEDIUMuutils coreutils split Arbitrary File Truncation via Time-of-Check to Time-of-Use (TOCTOU) Race ConditionEPSS 0.1%CVE-2026-25271HIGHTime-of-check Time-of-use (TOCTOU) Race Condition in DSP ServiceEPSS 0.1%