Vulnerability Details CVE-2022-31793
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.934
EPSS Ranking 99.8%
CVSS Severity
CVSS v3 Score 7.5
References
- http://inglorion.net/software/muhttpd/
- https://blog.malwarebytes.com/exploits-and-vulnerabilities/2022/08/millions-of-arris-routers-are-vulnerable-to-path-traversal-attacks/
- https://derekabdine.com/blog/2022-arris-advisory
- https://kb.cert.org/vuls/id/495801
- http://inglorion.net/software/muhttpd/
- https://blog.malwarebytes.com/exploits-and-vulnerabilities/2022/08/millions-of-arris-routers-are-vulnerable-to-path-traversal-attacks/
- https://derekabdine.com/blog/2022-arris-advisory
- https://kb.cert.org/vuls/id/495801
- https://www.kb.cert.org/vuls/id/495801
Products affected by CVE-2022-31793
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cpe:2.3:a:inglorion:muhttpd:-
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cpe:2.3:h:arris:bgw210:-
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cpe:2.3:h:arris:bgw320:-
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cpe:2.3:h:arris:nvg443:-
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cpe:2.3:h:arris:nvg510:-
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cpe:2.3:h:arris:nvg589:-
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cpe:2.3:h:arris:nvg599:-
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cpe:2.3:o:arris:bgw210_firmware:-
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cpe:2.3:o:arris:bgw320_firmware:-
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cpe:2.3:o:arris:nvg443_firmware:-
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cpe:2.3:o:arris:nvg510_firmware:-
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cpe:2.3:o:arris:nvg589_firmware:-
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cpe:2.3:o:arris:nvg599_firmware:-