PT-2023-30228 · E-Tax · E-Tax

Toyama Taku · Published 2023-11-06 · Updated 2024-10-29 · CVE-2023-46802

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions e-Tax software versions 3.0.10 and earlier

Description The issue is related to the improper restriction of XML external entity references (XXE) in the e-Tax software due to the configuration of the embedded XML parser. This allows an attacker to read arbitrary files on the system by processing a specially crafted XML file.

Recommendations For e-Tax software versions 3.0.10 and earlier, consider disabling the XML parser or restricting its use until a patch is available to prevent exploitation of the XXE issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XXE

Weakness Enumeration

CWE-611

Related Identifiers

CVE-2023-46802

Affected Products

E-Tax

References · 5

• https://osv.dev/vulnerability/CVE-2023-46802 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-46802 · Security Note
• https://e-tax.nta.go.jp/topics/topics_20231102.htm · Note
• https://jvn.jp/en/jp/JVN14762986 · Note
• https://t.me/cibsecurity/73568 · Telegram Post