CVE-2019-15800

CRITICAL

9.8

Description

An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. Due to lack of input validation in the cmd_sys_traceroute_exec(), cmd_sys_arp_clear(), and cmd_sys_ping_exec() functions in the libclicmd.so library contained in the firmware, an attacker could leverage these functions to call system() and execute arbitrary commands on the switches. (Note that these functions are currently not called in this version of the firmware, however an attacker could use other vulnerabilities to finally use these vulnerabilities to gain code execution.)

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published11/14/2019

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

zyxel:gs1900-10hpzyxel:gs1900-10hp_firmwarezyxel:gs1900-16zyxel:gs1900-16_firmwarezyxel:gs1900-24zyxel:gs1900-24_firmwarezyxel:gs1900-24ezyxel:gs1900-24e_firmwarezyxel:gs1900-24hpzyxel:gs1900-24hp_firmwarezyxel:gs1900-48zyxel:gs1900-48_firmwarezyxel:gs1900-48hpzyxel:gs1900-48hp_firmwarezyxel:gs1900-8zyxel:gs1900-8_firmwarezyxel:gs1900-8hpzyxel:gs1900-8hp_firmware

Weaknesses (CWE)

CWE-78

References

https://jasper.la/exploring-zyxel-gs1900-firmware-with-ghidra.html(cve@mitre.org)

https://www.zyxel.com/support/gs1900-switch-vulnerabilities.shtml(cve@mitre.org)

https://jasper.la/exploring-zyxel-gs1900-firmware-with-ghidra.html(af854a3a-2127-422b-91ae-364da2661108)

https://www.zyxel.com/support/gs1900-switch-vulnerabilities.shtml(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.