CVE-2025-34047

Leadsec VPN Path Traversal Arbitrary File Read

CVSS 8.7 HIGHEPSS 0.5%CWE-20 CWE-22

Vexday Risk Score

21Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 8.7EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

26 jun 2025Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

A path traversal vulnerability exists in the Leadsec SSL VPN (formerly Lenovo NetGuard), allowing unauthenticated attackers to read arbitrary files on the underlying system via the ostype parameter in the /vpn/user/download/client endpoint. This flaw arises from insufficient input sanitation, enabling traversal sequences to escape the intended directory and access sensitive files. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-05 UTC.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Produtos afetados

Beijing NetGuard Nebula Information Technology Co., Ltd. · Leadsec SSL VPN

Referências

https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cnvd/2021/CNVD-2021-64035.yaml https://vulncheck.com/advisories/leadsec-vpn-path-traversal-file-read https://www.cnvd.org.cn/flaw/show/CNVD-2021-64035 https://www.leadsec.com.cn/