CVE-2023-1803
Auth Bypass in Redline Router Firmware ≤ 7.17
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2023-1803 is a critical-severity Authentication Bypass by Alternate Name (CWE-289) vulnerability in Redline Router Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Data Obfuscation (T1001); ranked in the top 45% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-24005
Vulnerability Data
Authentication Bypass by Alternate Name vulnerability in DTS Electronics Redline Router firmware allows Authentication Bypass. This issue affects Redline Router: before 7.17.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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- 8 hardening rules · 3 OS baselines
V8.3.3V10.3.2V6.4.3
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Detects unauthorized successful logons resulting from improper authentication implementations.
Documented procedures ensure personnel are trained on authentication mechanisms, tangibly lowering the risk of improper authentication being exploited.
Security awareness training instructs users on secure authentication practices and avoiding credential compromise.
Training on authentication mechanisms and best practices decreases the occurrence of improper authentication.
Non-repudiation requires strong authentication mechanisms to irrefutably attribute performed actions to specific individuals or processes.
Session content review can reveal authentication bypasses or failures in session establishment.
Review of authentication-related audit records can detect improper authentication mechanisms or bypasses.
Assessments check authentication mechanisms for correct implementation and effectiveness, reducing successful authentication bypass attempts.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Proper identity management reduces alternate-name collisions but does not guarantee canonicalization inside the auth decision.
Strong authentication mechanisms directly prevent name-based bypass when they enforce canonical name checks.
Authorization policy enforcement assumes correct identity; the weakness occurs before policy is applied.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
A.5.15 only requires defining and documenting an access control policy plus requirements; it does not itself enforce rules or stop alternate-name authentication bypasses from being exploitable.
A.5.16 manages the lifecycle, uniqueness, and accountability of identities; it has no bearing on a product that authenticates by name but fails to canonicalize or check alternate names for the same resource/actor, so the weakness remains present and exploitable.
Proper management of authentication credentials can include rules against duplicate or alias identities.
A.5.18 governs the provisioning, review, and revocation of already-granted access rights to authenticated identities; it does not address or stop the distinct flaw in which authentication logic accepts an alternate name that bypasses the check.
Security requirements specified early and verified through testing drive the consistent implementation of authentication mechanisms, decreasing the likelihood that authentication steps are omitted or incorrectly applied.
Hardening callouts derived
Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (higher-evidence rows only; rows rated `none` are excluded).
Oracle Linux 8 (1 rule)
- V-248538 OL 8 operating systems booted with United Extensible Firmware Interface (UEFI) must have a unique name for the grub superusers account when booting into single-user mode and maintenance. blocks CWE-289
RHEL 7 (1 rule)
- V-244558 Red Hat Enterprise Linux operating systems version 7.2 or newer booted with United Extensible Firmware Interface (UEFI) must have a unique name for the grub superusers account when booting into single-user mode and maintenance. blocks CWE-289