#VU97968 Reflected cross-site scripting in DrayTek Corp. products - CVE-2024-41591

Vulnerability identifier: #VU97968

Vulnerability risk: Low

CVSSv4.0: 1.2 [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/E:U/U:Clear]

CVE-ID: CVE-2024-41591

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Vigor 1000B
Hardware solutions / Routers for home users
Vigor 2962
Hardware solutions / Routers for home users
Vigor 3910
Hardware solutions / Routers for home users
Vigor 3912
Hardware solutions / Routers for home users
Vigor 165
Hardware solutions / Routers for home users
Vigor 166
Hardware solutions / Routers for home users
Vigor 2135
Hardware solutions / Routers for home users
Vigor 2763
Hardware solutions / Routers for home users
Vigor 2765
Hardware solutions / Routers for home users
Vigor 2766
Hardware solutions / Routers for home users
Vigor 2865
Hardware solutions / Routers for home users
Vigor 2866
Hardware solutions / Routers for home users
Vigor 2915
Hardware solutions / Routers for home users
Vigor 2620
Hardware solutions / Routers for home users
Vigor LTE200
Hardware solutions / Routers for home users
Vigor 2133
Hardware solutions / Routers & switches, VoIP, GSM, etc
Vigor 2762
Hardware solutions / Routers & switches, VoIP, GSM, etc
Vigor 2860
Hardware solutions / Routers & switches, VoIP, GSM, etc
Vigor 2925
Hardware solutions / Routers & switches, VoIP, GSM, etc
Vigor 2862
Hardware solutions / Routers & switches, VoIP, GSM, etc
Vigor 2926
Hardware solutions / Routers & switches, VoIP, GSM, etc
Vigor 2952
Hardware solutions / Routers & switches, VoIP, GSM, etc
Vigor 3220
Hardware solutions / Routers & switches, VoIP, GSM, etc
Vigor 2832
Hardware solutions / Security hardware applicances

Vendor: DrayTek Corp.

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 passed via the "content" query string parameter to doc/hslogp1_link.htm. A remote attacker can trick the victim into clicking on a specially crafted line and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Vigor 1000B: before 4.3.2.8

Vigor 2962: before 4.3.2.8

Vigor 3910: before 4.3.2.8

Vigor 3912: before 4.3.6.1

Vigor 165: before 4.2.7

Vigor 166: before 4.2.7

Vigor 2135: before 4.4.5.1

Vigor 2763: before 4.4.5.1

Vigor 2765: before 4.4.5.1

Vigor 2766: before 4.4.5.1

Vigor 2865: before 4.4.5.3

Vigor 2866: before 4.4.5.3

Vigor 2915: before 4.4.5.3

Vigor 2620: before 3.9.8.9

Vigor LTE200: before 3.9.8.9

Vigor 2133: before 3.9.9

Vigor 2762: before 3.9.9

Vigor 2832: before 3.9.9

Vigor 2860: before 3.9.8

Vigor 2925: before 3.9.8

Vigor 2862: before 3.9.9.5

Vigor 2926: before 3.9.9.5

Vigor 2952: before 3.9.8.2

Vigor 3220: before 3.9.8.2

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External links
https://www.forescout.com/resources/draybreak-draytek-research/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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