CVE & CISA-KEV Catalog

CVE-2019-15800

CRITICALEPSS 89th pctl
9.8
CVSS v3
NVD

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.)

CWE-78OS Command Injection

How to fix

Remediation Available
gs1900-10hp firmwareNVD
Affected:< 2.50(aazi.0)c0Fixed in:2.50(aazi.0)c0CVE-2019-15800derived from NVD
gs1900-16 firmwareNVD
Affected:< 2.50(aahj.0)c0Fixed in:2.50(aahj.0)c0CVE-2019-15800derived from NVD
gs1900-24 firmwareNVD
Affected:< 2.50(aahl.0)c0Fixed in:2.50(aahl.0)c0CVE-2019-15800derived from NVD
gs1900-24e firmwareNVD
Affected:< 2.50(aahk.0)c0Fixed in:2.50(aahk.0)c0CVE-2019-15800derived from NVD
gs1900-24hp firmwareNVD
Affected:< 2.50(aahm.0)c0Fixed in:2.50(aahm.0)c0CVE-2019-15800derived from NVD
gs1900-48 firmwareNVD
Affected:< 2.50(aahn.0)c0Fixed in:2.50(aahn.0)c0CVE-2019-15800derived from NVD
gs1900-48hp firmwareNVD
Affected:< 2.50(aaho.0)c0Fixed in:2.50(aaho.0)c0CVE-2019-15800derived from NVD
gs1900-8 firmwareNVD
Affected:< 2.50(aahh.0)c0Fixed in:2.50(aahh.0)c0CVE-2019-15800derived from NVD
gs1900-8hp firmwareNVD
Affected:< 2.50(aahi.0)c0Fixed in:2.50(aahi.0)c0CVE-2019-15800derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

3.87%probability of exploitation in 30 days
89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Exploit1
Vendor Advisory1

Related Vulnerabilities

Other CWE-78 (OS Command Injection) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2021-1498Critical9.8100%KEVFix
CVE-2014-6271Critical9.8100%KEVFix
CVE-2019-16920Critical9.8100%KEV-
CVE-2022-44877Critical9.8100%KEVFix
CVE-2020-8515Critical9.8100%KEV-
CVE-2020-9054Critical9.8100%KEVFix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.