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Fencer Vulns
medium 6.5

CVE-2023-42129 json

A10 Thunder ADC ShowTechDownloadView Directory Traversal Information Disclosure Vulnerability

published 2024-05-03 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-46588

cvss
6.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

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.

Patch / fix

  • a10networks advanced_core_operating_system 5.2.1, 6.0.2

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

2.48% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • support.a10networks.com https://support.a10networks.com/support/security_advisory/a10-acos-file-access-vulnerability/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

  • A10 Thunder ADC
  • a10networks thunder_adc

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.