CVE-2019-15800
CVSS V2 High 10
CVSS V3 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.)
Overview
- CVE ID
- CVE-2019-15800
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2019-11-14T21:15:11
- Last Modified Date
- 2020-08-24T17:37:01
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:o:zyxel:gs1900-8_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.50\(aahh.0\)c0 | |
| cpe:2.3:h:zyxel:gs1900-8:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:zyxel:gs1900-8hp_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.50\(aahi.0\)c0 | |
| cpe:2.3:h:zyxel:gs1900-8hp:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:zyxel:gs1900-10hp_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.50\(aazi.0\)c0 | |
| cpe:2.3:h:zyxel:gs1900-10hp:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:zyxel:gs1900-16_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.50\(aahj.0\)c0 | |
| cpe:2.3:h:zyxel:gs1900-16:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:zyxel:gs1900-24e_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.50\(aahk.0\)c0 | |
| cpe:2.3:h:zyxel:gs1900-24e:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:zyxel:gs1900-24_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.50\(aahl.0\)c0 | |
| cpe:2.3:h:zyxel:gs1900-24:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:zyxel:gs1900-24hp_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.50\(aahm.0\)c0 | |
| cpe:2.3:h:zyxel:gs1900-24hp:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:zyxel:gs1900-48_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.50\(aahn.0\)c0 | |
| cpe:2.3:h:zyxel:gs1900-48:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:zyxel:gs1900-48hp_firmware:*:*:*:*:*:*:*:* | 1 | OR | 2.50\(aaho.0\)c0 | |
| cpe:2.3:h:zyxel:gs1900-48hp:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:C/I:C/A:C
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 10
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 10
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://www.zyxel.com/support/gs1900-switch-vulnerabilities.shtml | Vendor Advisory |
| https://jasper.la/exploring-zyxel-gs1900-firmware-with-ghidra.html | Exploit Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-15800 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15800 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:35:52 | Added to TrackCVE | |||
| 2022-12-04 06:24:28 | 2019-11-14T21:15Z | 2019-11-14T21:15:11 | CVE Published Date | updated |
| 2022-12-04 06:24:28 | 2020-08-24T17:37:01 | CVE Modified Date | updated | |
| 2022-12-04 06:24:28 | Analyzed | Vulnerability Status | updated |