Description
A path traversal vulnerability exists in Linknat VOS Manager versions prior to 2.1.9.07, including VOS2009 and early VOS3000 builds, that allows unauthenticated remote attackers to read arbitrary files on the server. The vulnerability is accessible via multiple localized subpaths such as '/eng/', '/chs/', or '/cht/', where the 'js/lang_en_us.js' or equivalent files are loaded. By injecting encoded traversal sequences such as '%c0%ae%c0%ae' into the request path, attackers can bypass input validation and disclose sensitive files.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linknat Technology | VOS Manager | ≤ VOS2009, ≤ VOS3000 2.1.9.06 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Metasploit 1 module
-
Linknat Vos Manager Traversal
auxiliary/scanner/http/linknat_vos_traversal
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- http://www.linknat.com/ product
- https://web.archive.org/web/20151013001957/http://www.wooyun.org/bugs/wooyun-2010-0145458 third-party-advisory
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/scanner/http/linknat_vos_traversal.rb exploit
- https://www.vulncheck.com/advisories/linknat-vos-manager-path-traversal-file-disclosure third-party-advisory