Details of VAR-201911-1313

ID

VAR-201911-1313

CVE

CVE-2019-15801

TITLE

Zyxel GS1900 Device firmware vulnerable to information disclosure from cache

Trust: 0.8

sources: JVNDB: JVNDB-2019-012184

DESCRIPTION

An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. The firmware image contains encrypted passwords that are used to authenticate users wishing to access a diagnostics or password-recovery menu. Using the hardcoded cryptographic key found elsewhere in the firmware, these passwords can be decrypted. This is related to fds_sys_passDebugPasswd_ret() and fds_sys_passRecoveryPasswd_ret() in libfds.so.0.0. Zyxel GS1900 The device firmware contains an information disclosure vulnerability from the cache.Information may be obtained. The ZyXEL GS1900 is a managed switch from ZyXEL, Taiwan. A security hole exists in the Zyxel GS1900 using firmware 2.50 (AAHH.0) prior to C0

Trust: 2.25

sources: NVD: CVE-2019-15801 // JVNDB: JVNDB-2019-012184 // CNVD: CNVD-2019-41671 // VULMON: CVE-2019-15801

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2019-41671

AFFECTED PRODUCTS

vendor:	zyxel	model:	gs1900-8	scope:	eq	version:	-	Trust: 1.2
vendor:	zyxel	model:	gs1900-8hp	scope:	eq	version:	-	Trust: 1.2
vendor:	zyxel	model:	gs1900-10hp	scope:	eq	version:	-	Trust: 1.2
vendor:	zyxel	model:	gs1900-24e	scope:	lt	version:	2.50\(aahk.0\)c0	Trust: 1.0
vendor:	zyxel	model:	gs1900-24	scope:	lt	version:	2.50\(aahl.0\)c0	Trust: 1.0
vendor:	zyxel	model:	gs1900-24hp	scope:	lt	version:	2.50\(aahm.0\)c0	Trust: 1.0
vendor:	zyxel	model:	gs1900-10hp	scope:	lt	version:	2.50\(aazi.0\)c0	Trust: 1.0
vendor:	zyxel	model:	gs1900-16	scope:	lt	version:	2.50\(aahj.0\)c0	Trust: 1.0
vendor:	zyxel	model:	gs1900-48hp	scope:	lt	version:	2.50\(aaho.0\)c0	Trust: 1.0
vendor:	zyxel	model:	gs1900-8	scope:	lt	version:	2.50\(aahh.0\)c0	Trust: 1.0
vendor:	zyxel	model:	gs1900-8hp	scope:	lt	version:	2.50\(aahi.0\)c0	Trust: 1.0
vendor:	zyxel	model:	gs1900-48	scope:	lt	version:	2.50\(aahn.0\)c0	Trust: 1.0
vendor:	zyxel	model:	gs1900-10hp	scope:	lt	version:	2.50(aahh.0)c0	Trust: 0.8
vendor:	zyxel	model:	gs1900-16	scope:	lt	version:	2.50(aahh.0)c0	Trust: 0.8
vendor:	zyxel	model:	gs1900-24	scope:	lt	version:	2.50(aahh.0)c0	Trust: 0.8
vendor:	zyxel	model:	gs1900-24e	scope:	lt	version:	2.50(aahh.0)c0	Trust: 0.8
vendor:	zyxel	model:	gs1900-24hp	scope:	lt	version:	2.50(aahh.0)c0	Trust: 0.8
vendor:	zyxel	model:	gs1900-48	scope:	lt	version:	2.50(aahh.0)c0	Trust: 0.8
vendor:	zyxel	model:	gs1900-48hp	scope:	lt	version:	2.50(aahh.0)c0	Trust: 0.8
vendor:	zyxel	model:	gs1900-8	scope:	lt	version:	2.50(aahh.0)c0	Trust: 0.8
vendor:	zyxel	model:	gs1900-8hp	scope:	lt	version:	2.50(aahh.0)c0	Trust: 0.8
vendor:	zyxel	model:	gs1900 <2.50 c0	scope:	-	version:	-	Trust: 0.6
vendor:	zyxel	model:	gs1900-8	scope:	eq	version:	2.40	Trust: 0.6
vendor:	zyxel	model:	gs1900-16	scope:	eq	version:	-	Trust: 0.6
vendor:	zyxel	model:	gs1900-8hp	scope:	eq	version:	2.40	Trust: 0.6
vendor:	zyxel	model:	gs1900-10hp	scope:	eq	version:	2.40	Trust: 0.6

sources: CNVD: CNVD-2019-41671 // JVNDB: JVNDB-2019-012184 // CNNVD: CNNVD-201911-993 // NVD: CVE-2019-15801

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2019-15801
value:	HIGH
Trust: 1.0
NVD:	CVE-2019-15801
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2019-41671
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-201911-993
value:	MEDIUM
Trust: 0.6
VULMON:	CVE-2019-15801
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2019-15801
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:P/I:N/A:N
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	NONE
availabilityImpact:	NONE
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.9
CNVD:	CNVD-2019-41671
severity:	HIGH
baseScore:	7.5
vectorString:	AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2019-15801
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	NONE
availabilityImpact:	NONE
exploitabilityScore:	3.9
impactScore:	3.6
version:	3.1
Trust: 1.0
NVD:	CVE-2019-15801
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	NONE
availabilityImpact:	NONE
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2019-41671 // VULMON: CVE-2019-15801 // JVNDB: JVNDB-2019-012184 // CNNVD: CNNVD-201911-993 // NVD: CVE-2019-15801

PROBLEMTYPE DATA

problemtype:	CWE-798	Trust: 1.0
problemtype:	CWE-522	Trust: 0.8

sources: JVNDB: JVNDB-2019-012184 // NVD: CVE-2019-15801

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-201911-993

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-201911-993

CONFIGURATIONS

sources: JVNDB: JVNDB-2019-012184

PATCH

title:	Zyxel security advisory for GS1900 switch vulnerabilities	url:	https://www.zyxel.com/support/gs1900-switch-vulnerabilities.shtml	Trust: 0.8
title:	Patch for ZyXEL GS1900 uses hardcoded password vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/191497	Trust: 0.6
title:	ZyXEL GS1900 Security vulnerabilities	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=102963	Trust: 0.6
title:	CVE-2019-15802	url:	https://github.com/jasperla/CVE-2019-15802	Trust: 0.1
title:	realtek_turnkey_decrypter	url:	https://github.com/jasperla/realtek_turnkey_decrypter	Trust: 0.1

sources: CNVD: CNVD-2019-41671 // VULMON: CVE-2019-15801 // JVNDB: JVNDB-2019-012184 // CNNVD: CNNVD-201911-993

EXTERNAL IDS

db:	NVD	id:	CVE-2019-15801	Trust: 3.1
db:	JVNDB	id:	JVNDB-2019-012184	Trust: 0.8
db:	CNVD	id:	CNVD-2019-41671	Trust: 0.6
db:	CNNVD	id:	CNNVD-201911-993	Trust: 0.6
db:	VULMON	id:	CVE-2019-15801	Trust: 0.1

sources: CNVD: CNVD-2019-41671 // VULMON: CVE-2019-15801 // JVNDB: JVNDB-2019-012184 // CNNVD: CNNVD-201911-993 // NVD: CVE-2019-15801

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2019-15801	Trust: 2.0
url:	https://www.zyxel.com/support/gs1900-switch-vulnerabilities.shtml	Trust: 1.7
url:	https://jasper.la/exploring-zyxel-gs1900-firmware-with-ghidra.html	Trust: 1.7
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-15801	Trust: 0.8
url:	https://cwe.mitre.org/data/definitions/798.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1
url:	https://github.com/jasperla/cve-2019-15802	Trust: 0.1

sources: CNVD: CNVD-2019-41671 // VULMON: CVE-2019-15801 // JVNDB: JVNDB-2019-012184 // CNNVD: CNNVD-201911-993 // NVD: CVE-2019-15801

SOURCES

db:	CNVD	id:	CNVD-2019-41671
db:	VULMON	id:	CVE-2019-15801
db:	JVNDB	id:	JVNDB-2019-012184
db:	CNNVD	id:	CNNVD-201911-993
db:	NVD	id:	CVE-2019-15801

LAST UPDATE DATE

2024-11-23T23:11:37.600000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2019-41671	date:	2019-11-21T00:00:00
db:	VULMON	id:	CVE-2019-15801	date:	2021-07-21T00:00:00
db:	JVNDB	id:	JVNDB-2019-012184	date:	2019-11-27T00:00:00
db:	CNNVD	id:	CNNVD-201911-993	date:	2019-12-02T00:00:00
db:	NVD	id:	CVE-2019-15801	date:	2024-11-21T04:29:29.637

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2019-41671	date:	2019-11-21T00:00:00
db:	VULMON	id:	CVE-2019-15801	date:	2019-11-14T00:00:00
db:	JVNDB	id:	JVNDB-2019-012184	date:	2019-11-27T00:00:00
db:	CNNVD	id:	CNNVD-201911-993	date:	2019-11-14T00:00:00
db:	NVD	id:	CVE-2019-15801	date:	2019-11-14T21:15:11.750