Roxy-WI: Authenticated RCE via 'configver' URL parameter (os.system sink in /config/versions/.../save)
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior, POST /config/versions/<service>/<server_ip>/<configver>/save interpolates the URL-path configver parameter directly into a config-version path that ends up at os.system(f"dos2unix -q {cfg}"). configver is not run through EscapedString (Pydantic doesn't validate path segments declared as str) and the surrounding .. block is the broken tuple-membership patch from GHSA-vapt-004. An authenticated user with role <= 3 ("user") therefore reaches a bin/sh -c command-injection sink. At time of publication, there are no publicly available patches.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-45564
More roxy-wi vulnerabilities
- TI-2022-13181 Unauthenticated Remote Code Execution in Roxy-WI CVSS 3.1CRITICAL 10.0
- TI-2022-13170 Unauthenticated Remote Code Execution in Roxy-wi CVSS 3.1CRITICAL 10.0
- TI-2026-25520 Roxy-WI has SQL Injection in haproxy_section_save Endpoint via Unsanitized server_ip Parameter CVSS 4.0HIGH 8.9
- TI-2026-25518 Roxy-WI vulnerable to path traversal and arbitrary file writing CVSS 4.0HIGH 8.9
- TI-2026-33307 Roxy-WI: Authenticated RCE on every managed HAProxy load balancer via `option` field config injection in section save CVSS 3.1CRITICAL 9.9
- TI-2026-33305 Improper input validation in roxy-wi CVSS 3.1CRITICAL 9.9
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences