PT-2023-2588 · Zyxel · Zyxel Nbg6604

Xianjun Chen · Published 2023-01-10 · Updated 2023-05-06 · CVE-2023-22919

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Zyxel NBG6604 version V1.01(ABIR.0)C0

Description The issue is related to a post-authentication command injection vulnerability. This could allow an authenticated attacker to execute some OS commands remotely by sending a crafted HTTP request. The vulnerability is also associated with a buffer overflow due to a lack of input size validation, which could lead to a denial of service.

Recommendations For Zyxel NBG6604 version V1.01(ABIR.0)C0, consider restricting access to the device until a patch is available, and avoid using the vulnerable firmware version to minimize the risk of exploitation. As a temporary workaround, consider disabling remote access to the device until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

OS Command Injection

Buffer Overflow

Weakness Enumeration

CWE-78

CWE-120

Related Identifiers

BDU:2023-02404

CVE-2023-22919

Affected Products

Zyxel Nbg6604

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2023-22919 · Security Note
• https://zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-post-authentication-command-injection-vulnerability-in-nbg6604-home-router · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-02404 · Security Note
• https://osv.dev/vulnerability/CVE-2023-22919 · Vendor Advisory
• https://t.me/cvenotify/49563 · Telegram Post
• https://vuldb.com/?id.227799 · Note
• https://t.me/cibsecurity/63131 · Telegram Post