CVE-2021-31643

Description

An XSS vulnerability exists in several IoT devices from CHIYU Technology, including SEMAC, Biosense, BF-630, BF-631, and Webpass due to a lack of sanitization on the component if.cgi - username parameter.

Related CPE's

ochiyu-techbf-631_firmware-*******

vulnerable

hchiyu-techbf-631-*******

ochiyu-techbf-630_firmware-*******

vulnerable

hchiyu-techbf-630-*******

ochiyu-techsemac_s2_firmware-*******

vulnerable

hchiyu-techsemac_s2-*******

ochiyu-techsemac_d1_firmware-*******

vulnerable

hchiyu-techsemac_d1-*******

ochiyu-techsemac_d2_firmware-*******

vulnerable

hchiyu-techsemac_d2-*******

References

https://www.chiyu-tech.com/msg/message-Firmware-update-87.html

Vendor Advisory

https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31643

ExploitThird Party Advisory

https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/

ExploitThird Party Advisory

http://packetstormsecurity.com/files/162887/CHIYU-IoT-Cross-Site-Scripting.html

ExploitThird Party AdvisoryVDB Entry

CvssV3 impact

BaseSeverity

MEDIUM

ConfidentialityImpact

LOW

AttackComplexity

LOW

Scope

CHANGED

AttackVector

NETWORK

AvailabilityImpact

NONE

IntegrityImpact

LOW

PrivilegesRequired

LOW

BaseScore

5.4

VectorString

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Version

3.1

UserInteraction

REQUIRED

CvssV2 impact

AccessComplexity

MEDIUM

ConfidentialityImpact

NONE

AvailabilityImpact

NONE

IntegrityImpact

PARTIAL

BaseScore

3.5

VectorString

AV:N/AC:M/Au:S/C:N/I:P/A:N

Version

2.0

AccessVector

NETWORK

Authentication

SINGLE

Created by Yello
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