Security Resilience

CVE-2023-34723

Jaycar La5570 Firmware 1.0.19_t53

Public PoC
Published
25 August 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.054 93th percentile
Risk Priority 64 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-2023-34723 is a high-severity Link Following (CWE-59) vulnerability in Jaycar La5570 Firmware. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Security Account Manager (T1003.002); ranked in the top 7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

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-2023-34723 is an information disclosure vulnerability in the TechView LA-5570 Wireless Gateway running firmware version 1.0.19_T53. The flaw permits unauthenticated remote access to sensitive data by requesting the path /config/system.conf and is tracked under CWE-59 with a CVSS 3.1 base score of 7.5 reflecting network attack vector, low complexity, and high confidentiality impact without affecting integrity or availability.

An attacker with network access to the device can retrieve the contents of system.conf and thereby obtain credentials or other configuration details that facilitate further attacks such as privilege escalation. Public exploit code demonstrating directory traversal combined with privilege escalation has been published on Packet Storm and ExploitSecurity.io.

The EPSS score has remained low, moving only from a current value of 0.0435 to a recorded peak of 0.0511, indicating limited observed exploitation interest since disclosure on 25 August 2023. No vendor advisory or patch information is referenced in the available sources.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

An issue was discovered in TechView LA-5570 Wireless Gateway 1.0.19_T53, allows attackers to gain sensitive information via /config/system.conf.

CWE(s)
CWE-59

Related Threats

MITRE ATT&CK Enterprise Techniques

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 →
T1003.005 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 →
T1011 Exfiltration Over Other Network Medium Exfiltration
Adversaries may attempt to exfiltrate data over a different network medium than the command and control channel.
attack.mitre.org →
T1016 System Network Configuration Discovery Discovery
Adversaries may look for details about the network configuration and settings, such as IP and/or MAC addresses, of systems they access or through information discovery of remote systems.
attack.mitre.org →
T1020 Automated Exfiltration Exfiltration
Adversaries may exfiltrate data, such as sensitive documents, through the use of automated processing after being gathered during Collection.
attack.mitre.org →
T1021.003 Distributed Component Object Model 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-2023-34724Same product: Jaycar La5570
CVE-2023-34725Same product: Jaycar La5570
CVE-2023-43116Shared CWE-59
CVE-2019-1069Shared CWE-59
CVE-2026-13268Shared CWE-59
CVE-2023-45159Shared CWE-59
CVE-2025-49738Shared CWE-59
CVE-2024-38022Shared CWE-59
CVE-2025-29975Shared CWE-59
CVE-2025-33075Shared CWE-59

Affected Assets

jaycar
la5570 firmware
1.0.19_t53

Mitigating Controls

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.PS-06 partial match
blocks

Secure SDLC practices directly require code to validate paths and avoid unsafe link following.

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