#VU58433 Cross-site scripting in NTT DOCOMO products - CVE-2021-20847

Cybersecurity Help s.r.o.

Published: 2021-11-30

Vulnerability identifier: #VU58433

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-20847

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vendor: NTT DOCOMO

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote authenticated attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Wi-Fi STATION SH-52A 38JP_1_11G: before 38JP_2_03F

Wi-Fi STATION SH-52A 38JP_1_11J: before 38JP_2_03F

Wi-Fi STATION SH-52A 38JP_1_11K: before 38JP_2_03F

Wi-Fi STATION SH-52A 38JP_1_11L: before 38JP_2_03F

Wi-Fi STATION SH-52A 38JP_1_26F: before 38JP_2_03F

Wi-Fi STATION SH-52A 38JP_1_26G: before 38JP_2_03F

Wi-Fi STATION SH-52A 38JP_1_26J: before 38JP_2_03F

Wi-Fi STATION SH-52A 38JP_2_03B: before 38JP_2_03F

Wi-Fi STATION SH-52A 38JP_2_03C: before 38JP_2_03F

External links
https://jvn.jp/en/jp/JVN19482703/index.html
https://www.nttdocomo.co.jp/support/product_update/sh52a/index.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

Latest bulletins with this vulnerability

Cross-site scripting in NTT DOCOMO Wi-Fi STATION SH-52A