MitreCVE-2019-14657CVE-2019-14657
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
60.9%
Yealink phones through 2019-08-04 have an issue with OpenVPN file upload. They execute tar as root to extract files, but do not validate the extraction directory. Creating a tar file with …/…/…/…/ allows replacement of almost any file on a phone. This leads to password replacement and arbitrary code execution as root.
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| yeahlink | vp59 | - | cpe:2.3:h:yeahlink:vp59:-:*:*:*:*:*:*:* |
| yeahlink | vp59_firmware | * | cpe:2.3:o:yeahlink:vp59_firmware:*:*:*:*:*:*:*:* |
| yeahlink | t49g | - | cpe:2.3:h:yeahlink:t49g:-:*:*:*:*:*:*:* |
| yeahlink | t49g_firmware | * | cpe:2.3:o:yeahlink:t49g_firmware:*:*:*:*:*:*:*:* |
| yeahlink | t58v | - | cpe:2.3:h:yeahlink:t58v:-:*:*:*:*:*:*:* |
| yeahlink | t58v_firmware | * | cpe:2.3:o:yeahlink:t58v_firmware:*:*:*:*:*:*:*:* |
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
60.9%