CVE-2023-42129: A10 Thunder ADC ShowTechDownloadView Directory Traversal Information Disclosure Vulnerability

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-05-03 · updated 2026-06-17
Weakness: CWE-22

Description

A10 Thunder ADC ShowTechDownloadView Directory Traversal Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of A10 Thunder ADC. Authentication is required to exploit this vulnerability. The specific flaw exists within the ShowTechDownloadView class. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to disclose information in the context of the service account. . Was ZDI-CAN-17899.

Affected products

A10Networks Advanced Core Operating System: from 5.1.0 before 5.2.1; from 6.0.0 before 6.0.2; 4.1.4, 4.1.4-gr1, 4.1.4-gr1-p1, 4.1.4-gr1-p10, 4.1.4-gr1-p11, 4.1.4-gr1-p12 (+17) — fixed in 5.2.1, 6.0.2

How to fix

Upgrade to a fixed version: A10Networks Advanced Core Operating System 5.2.1, 6.0.2. Check the vendor advisory for mitigations.

References

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