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cve[email protected]CVE-2018-16221
HistoryMay 29, 2019 - 6:29 p.m.

CVE-2018-16221

2019-05-2918:29:00
CWE-22
web.nvd.nist.gov
81
yeahlink
sip-t41p
ip phone
firmware
path traversal
privilege escalation
security vulnerability
nvd
cve-2018-16221

7.7 High

CVSS2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:A/AC:L/Au:S/C:C/I:C/A:C

8 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

39.5%

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).

Affected configurations

NVD
Node
yealinkultra-elegant_ip_phone_sip-t41p_firmwareMatch66.83.0.35
AND
yealinkultra-elegant_ip_phone_sip-t41pMatch-

7.7 High

CVSS2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:A/AC:L/Au:S/C:C/I:C/A:C

8 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

39.5%

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