First published: Thu Aug 04 2022(Updated: )
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.
Credit: cve@mitre.org
Affected Software | Affected Version | How to fix |
---|---|---|
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 |
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CVE-2022-31793 is a vulnerability in muhttpd before 1.1.7 that allows remote attackers to read arbitrary files by constructing a URL with a single character before a desired path on the filesystem.
The affected software includes Inglorion Muhttpd versions up to and excluding 1.1.7, as well as Arris NVG443, NVG599, and NVG589 firmware.
CVE-2022-31793 has a severity rating of 7.5 (High).
Remote attackers can exploit CVE-2022-31793 by constructing a URL with a single character before a desired path on the filesystem, allowing them to read arbitrary files.
More information about CVE-2022-31793 can be found on the Inglorion Muhttpd website and in the related blog posts and advisories.