Security Resilience

CVE-2023-53741

Auth Bypass in Dbbroadcast Sft Dab 015\/C Firmware 1.9.3

Public PoCAuth Bypass
Published
10 December 2025
Modified
18 December 2025
Patch / advisory
View advisory
CVSS Score v4 5.1
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0073 53th percentile
Risk Priority 35 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-53741 is a medium-severity Session Fixation (CWE-384) vulnerability in Dbbroadcast Sft Dab 015\/C Firmware. Its CVSS base score is 5.1 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Junk Data (T1001.001); ranked in the top 47% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SC-23 (Session Authenticity) and AC-12 (Session Termination) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2023-53741 is a weak session management vulnerability (CWE-384) in Screen SFT DAB version 1.9.3, where session identifiers are bound to IP addresses. This flaw allows attackers to bypass authentication controls by intercepting and reusing established session identifiers via the vulnerable API. The vulnerability carries a CVSS v3.1 base score of 8.1 (AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H), highlighting high integrity and availability impacts with no confidentiality loss.

Attackers with adjacent network access can exploit this without privileges or user interaction by capturing a valid session from a legitimate user and replaying the IP-bound session ID to the API. Successful exploitation enables unauthorized actions, such as removing user accounts, compromising system integrity and availability.

Advisories and related resources, including VulnCheck's detailed report (https://www.vulncheck.com/advisories/screen-sft-dab-authentication-bypass-via-ip-session-management), vendor pages from DB Broadcast (https://www.dbbroadcast.com and https://www.dbbroadcast.com/products/radio/sft-dab-series-compact-air/) and Screen (https://www.screen.it), provide further context. A proof-of-concept exploit is publicly available on Exploit-DB (https://www.exploit-db.com/exploits/51457), underscoring the need to review these for patch availability and mitigation guidance.

OWASP Top 10 for Web (2025)

A07:2025 Authentication Failures

EU & UK References

Vulnerability Data

Screen SFT DAB 1.9.3 contains a weak session management vulnerability that allows attackers to bypass authentication controls by reusing IP address-bound session identifiers. Attackers can exploit the vulnerable API by intercepting and reusing established sessions to remove user accounts without…

more

proper authorization.

CWE(s)
CWE-384

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001.001 Junk Data Command And Control
Adversaries may add junk data to protocols used for command and control to make detection more difficult.
attack.mitre.org →
T1003.002 Security Account Manager Credential Access
Adversaries may attempt to extract credential material from the Security Account Manager (SAM) database either through in-memory techniques or through the Windows Registry where the SAM database is stored.
attack.mitre.org →
T1003.004 LSA Secrets Credential Access
Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.
attack.mitre.org →
T1003.005 Cached Domain Credentials Credential Access
Adversaries may attempt to access cached domain credentials used to allow authentication to occur in the event a domain controller is unavailable.
attack.mitre.org →
T1003.007 Proc Filesystem Credential Access
Adversaries may gather credentials from the proc filesystem or `/proc`.
attack.mitre.org →
T1021.005 VNC Lateral Movement
Adversaries may use [Valid Accounts](https://attack.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-53776Same product: Dbbroadcast Sft Dab 600\/C
CVE-2023-53775Same product: Dbbroadcast Sft Dab 600\/C
CVE-2023-53740Same product: Dbbroadcast Sft Dab 015\/C
CVE-2023-53968Same product: Dbbroadcast Sft Dab 600\/C
CVE-2023-53967Same product: Dbbroadcast Sft Dab 600\/C
CVE-2023-7328Same product: Dbbroadcast Sft Dab 600\/C
CVE-2023-53970Same product: Dbbroadcast Sft Dab 600\/C
CVE-2023-53969Same product: Dbbroadcast Sft Dab 600\/C
CVE-2025-10228Shared CWE-384
CVE-2025-29928Shared CWE-384

Affected Assets

dbbroadcast
sft dab 015\/c firmware
1.9.3
dbbroadcast
sft dab 050\/c firmware
1.9.3
dbbroadcast
sft dab 150\/c firmware
1.9.3
dbbroadcast
sft dab 300\/c firmware
1.9.3
dbbroadcast
sft dab 600\/c firmware
1.9.3

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V4.4.4
  • V7.6.2

Mitigating Controls (NIST 800-53 r5) AI

SC-23 Session Authenticity good match

Requires protection of session authenticity, which directly stops an attacker from using a stolen or fixed session identifier after authentication.

AC-12 Session Termination partial match

Limits the lifetime of any session (fixed or not), thereby reducing the window during which a stolen identifier remains usable.

AC-3 Access Enforcement partial match

Enforces that only properly authorized (i.e., freshly authenticated) sessions can access resources, making a pre-existing fixed session ID unusable.

IA-11 Re-authentication partial match

Forces re-authentication under defined conditions, which should result in issuance of a fresh session identifier and invalidation of any prior one.

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.

PR.AA-01 partial match
blocks

Managing identities and credentials includes handling session identifiers as temporary credentials that must be invalidated on re-authentication.

PR.AA-03 partial match
blocks

Proper authentication processes must invalidate prior session identifiers to prevent fixation attacks.

PR.AA-04 partial match
blocks

Protecting and verifying identity assertions encompasses secure handling and regeneration of session tokens.

PR.PS-01 partial match
blocks

Configuration baselines can enforce session regeneration and timeout settings that block fixation.

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.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.8.10 Information deletion partial match
removes

References