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.

CVSS v3.0 7.5 HIGH

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://derekabdine.com/blog/2022-arris-advisory	Exploit Third Party Advisory
https://blog.malwarebytes.com/exploits-and-vulnerabilities/2022/08/millions-of-arris-routers-are-vulnerable-to-path-traversal-attacks/	Third Party Advisory
https://kb.cert.org/vuls/id/495801	Third Party Advisory US Government Resource
http://inglorion.net/software/muhttpd/	Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:inglorion:muhttpd:*:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:arris:nvg443_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:arris:nvg443:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:arris:nvg599_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:arris:nvg599:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

cpe:2.3:o:arris:nvg589_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:arris:nvg589:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND

cpe:2.3:o:arris:nvg510_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:arris:nvg510:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND

cpe:2.3:o:arris:bgw210_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:arris:bgw210:-:*:*:*:*:*:*:*

Configuration 7 (hide)

AND

cpe:2.3:o:arris:bgw320_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:arris:bgw320:-:*:*:*:*:*:*:*

Information

Published : 2022-08-04 15:15

Updated : 2022-08-11 11:07

NVD link : CVE-2022-31793

Mitre link : CVE-2022-31793

JSON object : View

CWE

CWE-22

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

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Products Affected

inglorion

muhttpd

arris

bgw320_firmware
nvg599_firmware
nvg443
bgw210_firmware
bgw320
nvg589_firmware
bgw210
nvg443_firmware
nvg599
nvg510_firmware
nvg510
nvg589

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