PT-2024-27909 · Zyxel · Zyxel Gs1900-10Hp

Steinar H. Gunderson · Published 2024-09-09 · Updated 2024-09-18 · CVE-2024-38270

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Zyxel GS1900-10HP firmware version V2.80(AAZI.0)C0

Description An insufficient entropy vulnerability exists due to the improper use of a randomness function with low entropy for web authentication tokens generation. This could allow a LAN-based attacker a slight chance to gain a valid session token if multiple authenticated sessions are alive.

Recommendations For Zyxel GS1900-10HP firmware version V2.80(AAZI.0)C0, consider disabling web authentication until a patch is available to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-331

Related Identifiers

CVE-2024-38270

Affected Products

Zyxel Gs1900-10Hp

References · 7

• https://osv.dev/vulnerability/CVE-2024-38270 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-38270 · Security Note
• https://zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-insufficient-entropy-vulnerability-for-web-authentication-tokens-generation-in-gs1900-series-switches-09-10-2024 · Vendor Advisory
• https://t.me/cvenotify/93901 · Telegram Post
• https://twitter.com/CVEnew/status/1833329923001291158 · Twitter Post
• https://t.me/cvedetector/5147 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1833389499654472147 · Twitter Post