CVE-2019-15800: 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()…

PriorityP359critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

3.87%

89.1th percentile

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.)

Affected

15 ranges

Vendor	Product	Version range	Fixed in
msrc	microsoft_forefront_endpoint_protection_2010	—	—
msrc	microsoft_security_essentials	—	—
msrc	microsoft_system_center_2012_endpoint_protection	—	—
msrc	microsoft_system_center_2012_r2_endpoint_protection	—	—
msrc	microsoft_system_center_endpoint_protection	—	—
msrc	windows_defender	—	—
zyxel	gs1900-10hp_firmware	< 2.50\(aazi.0\)c0	2.50\(aazi.0\)c0
zyxel	gs1900-16_firmware	< 2.50\(aahj.0\)c0	2.50\(aahj.0\)c0
zyxel	gs1900-24_firmware	< 2.50\(aahl.0\)c0	2.50\(aahl.0\)c0
zyxel	gs1900-24e_firmware	< 2.50\(aahk.0\)c0	2.50\(aahk.0\)c0
zyxel	gs1900-24hp_firmware	< 2.50\(aahm.0\)c0	2.50\(aahm.0\)c0
zyxel	gs1900-48_firmware	< 2.50\(aahn.0\)c0	2.50\(aahn.0\)c0
zyxel	gs1900-48hp_firmware	< 2.50\(aaho.0\)c0	2.50\(aaho.0\)c0
zyxel	gs1900-8_firmware	< 2.50\(aahh.0\)c0	2.50\(aahh.0\)c0
zyxel	gs1900-8hp_firmware	< 2.50\(aahi.0\)c0	2.50\(aahi.0\)c0

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.010.0CRITICALAV:N/AC:L/Au:N/C:C/I:C/A:C

vendor_msrc7.1HIGH

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