Privilege escalation in e-Tax



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-47045
CWE-ID CWE-268
Exploitation vector Local
Public exploit N/A
Vulnerable software
 e-Tax
Client/Desktop applications / Other client software

Vendor National Tax Agency

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Privilege Chaining

EUVDB-ID: #VU97668

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-47045

CWE-ID: CWE-268 - Privilege Chaining

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a privilege chaining issue in the installer. A local user can upload a malicious DLL and gain elevated privileges on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

e-Tax: All versions

CPE2.3 External links

https://jvn.jp/en/jp/JVN57749899/index.html
https://www.e-tax.nta.go.jp/topics/2024/topics_20240924_versionup.htm


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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