Vulnerability Description
do_request in request.c in muhttpd before 1.1.7 allows remote attackers to read arbitrary files by constructing a URL with a single character before a desired path on the filesystem. This occurs because the code skips over the first character when serving files. Arris NVG443, NVG599, NVG589, and NVG510 devices and Arris-derived BGW210 and BGW320 devices are affected.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Inglorion | Muhttpd | < 1.1.7 |
| Arris | Nvg443 Firmware | - |
| Arris | Nvg443 | - |
| Arris | Nvg599 Firmware | - |
| Arris | Nvg599 | - |
| Arris | Nvg589 Firmware | - |
| Arris | Nvg589 | - |
| Arris | Nvg510 Firmware | - |
| Arris | Nvg510 | - |
| Arris | Bgw210 Firmware | - |
| Arris | Bgw210 | - |
| Arris | Bgw320 Firmware | - |
| Arris | Bgw320 | - |
Related Weaknesses (CWE)
References
- http://inglorion.net/software/muhttpd/Third Party Advisory
- https://blog.malwarebytes.com/exploits-and-vulnerabilities/2022/08/millions-of-aThird Party Advisory
- https://derekabdine.com/blog/2022-arris-advisoryExploitThird Party Advisory
- https://kb.cert.org/vuls/id/495801Third Party AdvisoryUS Government Resource
- http://inglorion.net/software/muhttpd/Third Party Advisory
- https://blog.malwarebytes.com/exploits-and-vulnerabilities/2022/08/millions-of-aThird Party Advisory
- https://derekabdine.com/blog/2022-arris-advisoryExploitThird Party Advisory
- https://kb.cert.org/vuls/id/495801Third Party AdvisoryUS Government Resource
- https://www.kb.cert.org/vuls/id/495801
FAQ
What is CVE-2022-31793?
CVE-2022-31793 is a vulnerability with a CVSS score of 7.5 (HIGH). do_request in request.c in muhttpd before 1.1.7 allows remote attackers to read arbitrary files by constructing a URL with a single character before a desired path on the filesystem. This occurs becau...
How severe is CVE-2022-31793?
CVE-2022-31793 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-31793?
Check the references section above for vendor advisories and patch information. Affected products include: Inglorion Muhttpd, Arris Nvg443 Firmware, Arris Nvg443, Arris Nvg599 Firmware, Arris Nvg599.