CVE-2022-31793

CVSS V2 None CVSS V3 High 7.5
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.
Overview
  • CVE ID
  • CVE-2022-31793
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-08-04T22:15:08
  • Last Modified Date
  • 2022-08-11T18:07:01
Weakness Enumerations
CWE URL
CWE-22 http://cwe.mitre.org/data/definitions/22.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:inglorion:muhttpd:*:*:*:*:*:*:*:* 1 OR 1.1.7
AND
cpe:2.3:o:arris:nvg443_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:arris:nvg443:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:arris:nvg599_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:arris:nvg599:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:arris:nvg589_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:arris:nvg589:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:arris:nvg510_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:arris:nvg510:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:arris:bgw210_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:arris:bgw210:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:arris:bgw320_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:arris:bgw320:-:*:*:*:*:*:*:* 0 OR
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://derekabdine.com/blog/2022-arris-advisory
https://blog.malwarebytes.com/exploits-and-vulnerabilities/2022/08/millions-of-arris-routers-are-vulnerable-to-path-traversal-attacks/
https://kb.cert.org/vuls/id/495801
http://inglorion.net/software/muhttpd/
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2022-31793
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-31793
History
Created Old Value New Value Data Type Notes
2022-08-04 23:00:05 Added to TrackCVE