PT-2024-9708 · Draytek · Draytek Vigor 3910

Published 2024-09-18 · Updated 2024-09-24 · CVE-2024-46550

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Draytek Vigor 3910 version 4.3.2.6

Description The issue is related to a buffer overflow in the CGIbyFieldName parameter at the chglog.cgi endpoint. This allows attackers to cause a Denial of Service (DoS) via a crafted input. The vulnerability can be exploited by a remote attacker.

Recommendations For Draytek Vigor 3910 version 4.3.2.6, consider disabling access to the chglog.cgi endpoint or restricting the use of the CGIbyFieldName parameter until a patch is available. As a temporary workaround, avoid using the CGIbyFieldName parameter in the affected endpoint to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2024-11433

CVE-2024-46550

Affected Products

Draytek Vigor 3910

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2024-46550 · Security Note
• https://bdu.fstec.ru/vul/2024-11433 · Security Note
• https://osv.dev/vulnerability/CVE-2024-46550 · Vendor Advisory
• https://ink-desk-28f.notion.site/Draytek-vigor-3910-Analysis-Report-b3b23e150c4f4bab822c3c47fd7b9de9#bffdd8897d944a77834b865d9326a1d7 · Note
• https://t.me/cvenotify/95834 · Telegram Post
• https://draytek.co.uk/support/security-advisories/kb-advisory-cve-2024-46550 · Note
• https://twitter.com/CVEnew/status/1836424272564359590 · Twitter Post