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Home/CWEs/CWE-377
Common Weakness Enumeration

CWE-377: Insecure Temporary File

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Creating and using insecure temporary files can leave application and system data vulnerable to attack.

Abstraction
Class
Related CVEs
0

▪References & documentation

https://cwe.mitre.org/data/definitions/377.htmlNVD CWE listing

▪ How attackers exploit CWE-377

MITRE ATT&CK techniques associated with this weakness class (mapped via MITRE CAPEC). A vulnerability of this type could let an adversary carry out:

T1003OS Credential Dumpingcredential-accessT1083File and Directory DiscoverydiscoveryT1119Automated CollectioncollectionT1213Data from Information RepositoriescollectionT1530Data from Cloud StoragecollectionT1555Credentials from Password Stores

Step-by-step: how CWE-377 gets exploited

A stage-by-stage walkthrough of the attack, mapped to the real MITRE ATT&CK tactics for this weakness — what the attacker is trying to do, what's at risk (what can be stolen or damaged), and how you defend. Understanding the playbook is how you shut it down.

  1. 1
    Credential accesscredential-access

    Steal passwords, tokens, keys, and session material.

    At risk / what's stolen

    Passwords, API keys, session tokens, SSH/TLS keys, and secrets in memory, env, or config.

▪ Related CVEs

No CVEs in the Gold index currently reference CWE-377. New matches appear here as the crawler indexes them.
credential-access
T1602Data from Configuration Repositorycollection
How you defend

Secret managers, short-lived tokens, and no secrets in code/env/logs.

  • 2
    Discoverydiscovery

    Map what else is reachable — hosts, services, data stores, and accounts.

    At risk / what's stolen

    Internal topology, service inventory, and data locations the attacker enumerates.

    How you defend

    Network segmentation and detection of unusual internal scanning.

  • 3
    Collectioncollection

    Gather the valuable data before taking it out.

    At risk / what's stolen

    Databases, files, customer records, source code, and business data.

    How you defend

    Data-access monitoring, encryption at rest, and least-privilege data access.

  • This is a defensive, conceptual walkthrough for education — stages reflect MITRE ATT&CK tactics associated with this weakness class, not a working exploit. Not every attack uses every stage.