The product uses an authentication mechanism to restrict access to specific users or identities, but the mechanism does not sufficiently prove that the claimed identity is correct.
View on MITREAttackers may be able to bypass weak authentication faster and/or with less effort than expected.
This weakness can lead to the exposure of resources or functionality to unintended actors, possibly providing attackers with sensitive information or even execute arbitrary code.
No mitigation information available for this CWE.
No detection method information available for this CWE.
Chain: Web UI for a Python RPC framework does not use regex anchors to validate user login emails (CWE-777), potentially allowing bypass of OAuth (CWE-1390).
View DetailsChat application skips validation when Central Authentication Service (CAS) is enabled, effectively removing the second factor from two-factor authentication
View DetailsChain: Python-based HTTP Proxy server uses the wrong boolean operators (CWE-480) causing an incorrect comparison (CWE-697) that identifies an authN failure if all three conditions are met instead of only one, allowing bypass of the proxy authentication (CWE-1390)
View DetailsDistributed Control System (DCS) uses a deterministic algorithm to generate utility passwords
View DetailsInitialization file contains credentials that can be decoded using a "simple string transformation"
View DetailsNo relationship information available for this CWE.
CWE-1390: Weak Authentication is a Common Weakness Enumeration (CWE) entry maintained by MITRE. The product uses an authentication mechanism to restrict access to specific users or identities, but the mechanism does not sufficiently prove that the claimed identity is correct. Attackers may be able to bypass weak authentication faster and/or with less effort than expected.
If exploited, CWE-1390 (Weak Authentication) it can compromise Integrity, Confidentiality, Availability and Access Control, leading to outcomes such as Read Application Data, Gain Privileges or Assume Identity and Execute Unauthorized Code or Commands.
CWE-1390 commonly affects Not Language-Specific. Note that weaknesses are often language-agnostic patterns, so secure coding practices apply broadly.
MITRE documents real CVEs mapped to CWE-1390, including CVE-2022-30034, CVE-2022-35248, CVE-2021-3116, CVE-2022-29965 and CVE-2022-29959. You can look up the full details of each CVE, including CVSS scores and remediation guidance, on our CVE Lookup tool.
A CWE (Common Weakness Enumeration) like CWE-1390 describes a category of software weakness — the underlying flaw type. A CVE (Common Vulnerabilities and Exposures) identifies a specific, real-world vulnerability in a particular product. In short, a CWE is the kind of mistake, and a CVE is an instance of that mistake being found in software.