Cross-site scripting in NEC Corporation products - CVE-2021-20680

Vulnerability identifier: #VU52011

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]

CVE-ID: CVE-2021-20680

CWE-ID: CWE-79

Exploitation vector: Remote access

Exploit availability: No public exploit available

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 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.

Aterm W300P
Aterm W1200EX-MS
Aterm WG1200HS
Aterm W1200EX
Aterm WG1200HP
Aterm WG1200HP2
Aterm WG1900HP2
Aterm WG1200HP3
Aterm WG1200HS2
Aterm WG1200HS3
Aterm WF300HP2
Aterm WG1800HP3
Aterm WR8165N
Aterm WG1800HP4
Aterm W500P
Aterm WG1900HP
Aterm WF800HP

Install updates from vendor's website.

Aterm W1200EX - update to 1.4.0
Aterm WG1200HP2 - update to 2.6.0
Aterm WG1900HP2 - update to 1.4.3
Aterm WG1200HP3 - update to 1.4.2
Aterm WG1200HS2 - update to 2.6.0
Aterm WG1200HS3 - update to 1.4.1
Aterm WG1800HP4 - update to 1.4.3
Aterm WG1900HP - update to 2.6.0

• https://jvn.jp/en/jp/JVN67456944/index.html
• https://jpn.nec.com/security-info/secinfo/nv21-008.html
• https://www.aterm.jp/support/tech/2020/0708.html

• Cross-site scripting in multiple Aterm products