CVE-2022-31793

Published: Aug 4, 2022Modified: Nov 21, 2024

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitability: 3.9 / Impact: 3.6

Source: NVD

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.

Affected (7)

Products: Inglorion: Muhttpd · Arris: Nvg443 Firmware, Nvg599 Firmware, Nvg589 Firmware, Nvg510 Firmware, Bgw210 Firmware, Bgw320 Firmware

1 product

6 products

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Inglorion Muhttpd	Before 1.1.7

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Arris Nvg443 Firmware	All versions

Running on/with	Platform Versions
Arris Nvg443	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Arris Nvg599 Firmware	All versions

Running on/with	Platform Versions
Arris Nvg599	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Arris Nvg589 Firmware	All versions

Running on/with	Platform Versions
Arris Nvg589	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Arris Nvg510 Firmware	All versions

Running on/with	Platform Versions
Arris Nvg510	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Arris Bgw210 Firmware	All versions

Running on/with	Platform Versions
Arris Bgw210	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Arris Bgw320 Firmware	All versions

Running on/with	Platform Versions
Arris Bgw320	All versions

Related CWEs

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (9)

http://inglorion.net/software/muhttpd/

Source: cve@mitre.org

Third Party Advisory

https://blog.malwarebytes.com/exploits-and-vulnerabilities/2022/08/millions-of-arris-routers-are-vulnerable-to-path-traversal-attacks/

Source: cve@mitre.org

Third Party Advisory

https://derekabdine.com/blog/2022-arris-advisory

Source: cve@mitre.org

ExploitThird Party Advisory

https://kb.cert.org/vuls/id/495801

Source: cve@mitre.org

Third Party AdvisoryUS Government Resource

http://inglorion.net/software/muhttpd/