CVE-2018-16221

CVSS V2 High 7.7 CVSS V3 High 8
Description
The diagnostics web interface in the Yeahlink Ultra-elegant IP Phone SIP-T41P (firmware 66.83.0.35) does not validate (escape) the path information (path traversal), which allows an authenticated remote attacker to get access to privileged information (e.g., /etc/passwd) via path traversal (relative path information in the file parameter of the corresponding POST request).
Overview
  • CVE ID
  • CVE-2018-16221
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2019-05-29T18:29:00
  • Last Modified Date
  • 2019-05-30T14:25:00
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:o:yealink:ultra-elegant_ip_phone_sip-t41p_firmware:66.83.0.35:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:yealink:ultra-elegant_ip_phone_sip-t41p:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:A/AC:L/Au:S/C:C/I:C/A:C
  • Access Vector
  • ADJACENT_NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.7
  • Severity
  • HIGH
  • Exploitability Score
  • 5.1
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • ADJACENT_NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 2.1
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://www.sit.fraunhofer.de/fileadmin/dokumente/CVE/Advisory_Yealink_Ultra-elegantIPPhone_SIPT41P.pdf?_=1549375271 Third Party Advisory
https://www.sit.fraunhofer.de/de/securitytestlab/ Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-16221
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16221
History
Created Old Value New Value Data Type Notes
2022-05-10 07:51:18 Added to TrackCVE
2022-12-03 21:25:42 2019-05-29T18:29Z 2019-05-29T18:29:00 CVE Published Date updated
2022-12-03 21:25:42 2019-05-30T14:25:00 CVE Modified Date updated
2022-12-03 21:25:42 Analyzed Vulnerability Status updated