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TalosCVE-2018-3920

HistoryNov 02, 2018 - 5:29 p.m.

CVE-2018-3920

2018-11-0217:29:00

talos

web.nvd.nist.gov

cve-2018-3920

exploitable

code execution

vulnerability

firmware update

7-zip

crc collision

sdcard

yi home camera

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS3

6.8

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.001

Percentile

44.0%

JSON

An exploitable code execution vulnerability exists in the firmware update functionality of the Yi Home Camera 27US 1.8.7.0D. A specially crafted 7-Zip file can cause a CRC collision, resulting in a firmware update and code execution. An attacker can insert an SDcard to trigger this vulnerability.

Affected configurations

Nvd

Vulners

Node

yitechnologyyi_home_camera_firmwareMatch1.8.7.0d

AND

yitechnologyyi_home_cameraMatch-

VendorProductVersionCPE
yitechnologyyi_home_camera_firmware1.8.7.0dcpe:2.3:o:yitechnology:yi_home_camera_firmware:1.8.7.0d:*:*:*:*:*:*:*
yitechnologyyi_home_camera-cpe:2.3:h:yitechnology:yi_home_camera:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
yitechnology	yi_home_camera_firmware	1.8.7.0d	cpe:2.3:o:yitechnology:yi_home_camera_firmware:1.8.7.0d:::::::*
yitechnology	yi_home_camera	-	cpe:2.3:h:yitechnology:yi_home_camera:-:::::::*

CNA Affected

[
  {
    "product": "Yi Technology",
    "vendor": "unknown",
    "versions": [
      {
        "status": "affected",
        "version": "Yi Technology Home Camera 27US 1.8.7.0D"
      }
    ]
  }
]

References

www.talosintelligence.com/vulnerability_reports/TALOS-2018-0584

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS3

6.8

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.001

Percentile

44.0%

JSON

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