nuclei-templates/http/cves/2021/CVE-2021-21816.yaml

id: CVE-2021-21816

info:
  name: D-Link DIR-3040 1.13B03 - Information Disclosure
  author: gy741
  severity: medium
  description: D-Link DIR-3040 1.13B03 is susceptible to information disclosure in the Syslog functionality. A specially crafted HTTP network request can lead to the disclosure of sensitive information. An attacker can obtain access to user accounts and access sensitive information, modify data, and/or execute unauthorized operations.
  impact: |
    An attacker can exploit this vulnerability to gain sensitive information from the router, potentially leading to further attacks.
  remediation: |
    Upgrade the router firmware to the latest version provided by D-Link.
  reference:
    - https://talosintelligence.com/vulnerability_reports/TALOS-2021-1281
    - https://nvd.nist.gov/vuln/detail/CVE-2021-21816
    - 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:U/C:L/I:N/A:N
    cvss-score: 4.3
    cve-id: CVE-2021-21816
    cwe-id: CWE-200
    epss-score: 0.00229
    epss-percentile: 0.60334
    cpe: cpe:2.3:o:dlink:dir-3040_firmware:1.13b03:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: dlink
    product: dir-3040_firmware
  tags: cve2021,cve,dlink,exposure,router,syslog

http:
  - method: GET
    path:
      - "{{BaseURL}}/messages"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "syslog:"
          - "admin"
          - "/etc_ro/lighttpd/www"
        condition: and

      - type: status
        status:
          - 200
# digest: 4a0a0047304502205524508cec5a7648f3525efc7cc61e2269f85a2218a048a07c6d27965360ef0b022100cffbf244af2a53310124e9534e57a43bad9b0e544ee49ab2bfdcca089ad71ce8:922c64590222798bb761d5b6d8e72950
Create CVE-2021-21816.yaml An information disclosure vulnerability exists in the Syslog functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to the disclosure of sensitive information. An attacker can send an HTTP request to trigger this vulnerability. Signed-off-by: GwanYeong Kim <gy741.kim@gmail.com> 2021-07-31 17:39:35 +00:00			`id: CVE-2021-21816`

			`info:`
Enhancement: cves/2021/CVE-2021-21816.yaml by md 2023-02-01 17:19:03 +00:00			`name: D-Link DIR-3040 1.13B03 - Information Disclosure`
Create CVE-2021-21816.yaml An information disclosure vulnerability exists in the Syslog functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to the disclosure of sensitive information. An attacker can send an HTTP request to trigger this vulnerability. Signed-off-by: GwanYeong Kim <gy741.kim@gmail.com> 2021-07-31 17:39:35 +00:00			`author: gy741`
			`severity: medium`
Enhancement: cves/2021/CVE-2021-21816.yaml by md 2023-02-01 18:26:43 +00:00			`description: D-Link DIR-3040 1.13B03 is susceptible to information disclosure in the Syslog functionality. A specially crafted HTTP network request can lead to the disclosure of sensitive information. An attacker can obtain access to user accounts and access sensitive information, modify data, and/or execute unauthorized operations.`
Added Impact 2023-09-27 15:51:13 +00:00			`impact: \|`
			`An attacker can exploit this vulnerability to gain sensitive information from the router, potentially leading to further attacks.`
Updated 2021 CVEs 2023-09-06 12:09:01 +00:00			`remediation: \|`
			`Upgrade the router firmware to the latest version provided by D-Link.`
refactor: Description field uniformization * info field reorder * reference values refactored to list * added new lines after the id and before the protocols * removed extra new lines * split really long descriptions to multiple lines (part 1) * other minor fixes 2022-04-22 10:38:41 +00:00			`reference:`
			`- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1281`
Enhancement: cves/2021/CVE-2021-21816.yaml by md 2023-02-01 17:19:03 +00:00			`- https://nvd.nist.gov/vuln/detail/CVE-2021-21816`
TemplateMan Update [Sat Mar 23 09:28:19 UTC 2024] :robot: 2024-03-23 09:28:19 +00:00			`- https://github.com/ARPSyndicate/cvemon`
			`- https://github.com/ARPSyndicate/kenzer-templates`
Added cve annotations + severity adjustments 2021-09-10 11:26:40 +00:00			`classification:`
			`cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N`
refactor: Description field uniformization * info field reorder * reference values refactored to list * added new lines after the id and before the protocols * removed extra new lines * split really long descriptions to multiple lines (part 1) * other minor fixes 2022-04-22 10:38:41 +00:00			`cvss-score: 4.3`
Added cve annotations + severity adjustments 2021-09-10 11:26:40 +00:00			`cve-id: CVE-2021-21816`
CVE Enrichment :tada: 2023-07-11 19:49:27 +00:00			`cwe-id: CWE-200`
Revert "TemplateMan Update [Mon Apr 8 11:30:07 UTC 2024] :robot:" This reverts commit 433dda4ae5b824564b44075bb95a96ecdbe263a6. 2024-04-08 11:34:33 +00:00			`epss-score: 0.00229`
			`epss-percentile: 0.60334`
Updated 2021 CVEs 2023-09-06 12:09:01 +00:00			`cpe: cpe:2.3:o:dlink:dir-3040_firmware:1.13b03:::::::*`
Added max request counter of each template 2023-04-28 08:11:21 +00:00			`metadata:`
			`max-request: 1`
CVE Enrichment :tada: 2023-07-11 19:49:27 +00:00			`vendor: dlink`
			`product: dir-3040_firmware`
auto tagging via templateman 2024-01-14 09:21:50 +00:00			`tags: cve2021,cve,dlink,exposure,router,syslog`
Create CVE-2021-21816.yaml An information disclosure vulnerability exists in the Syslog functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to the disclosure of sensitive information. An attacker can send an HTTP request to trigger this vulnerability. Signed-off-by: GwanYeong Kim <gy741.kim@gmail.com> 2021-07-31 17:39:35 +00:00
Refactoring the directory structure based on protocols (#7137) * moving http templates * updated cves.json * moved network CVEs * updated scripts * updated workflows * updated requests to http * replaced network to tcp --------- Co-authored-by: sandeep <8293321+ehsandeep@users.noreply.github.com> 2023-04-27 04:28:59 +00:00			`http:`
Create CVE-2021-21816.yaml An information disclosure vulnerability exists in the Syslog functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to the disclosure of sensitive information. An attacker can send an HTTP request to trigger this vulnerability. Signed-off-by: GwanYeong Kim <gy741.kim@gmail.com> 2021-07-31 17:39:35 +00:00			`- method: GET`
			`path:`
			`- "{{BaseURL}}/messages"`

			`matchers-condition: and`
			`matchers:`
			`- type: word`
CVE Enrichment :tada: 2023-07-11 19:49:27 +00:00			`part: body`
Create CVE-2021-21816.yaml An information disclosure vulnerability exists in the Syslog functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to the disclosure of sensitive information. An attacker can send an HTTP request to trigger this vulnerability. Signed-off-by: GwanYeong Kim <gy741.kim@gmail.com> 2021-07-31 17:39:35 +00:00			`words:`
			`- "syslog:"`
			`- "admin"`
Update CVE-2021-21816.yaml 2021-08-02 12:27:09 +00:00			`- "/etc_ro/lighttpd/www"`
Create CVE-2021-21816.yaml An information disclosure vulnerability exists in the Syslog functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to the disclosure of sensitive information. An attacker can send an HTTP request to trigger this vulnerability. Signed-off-by: GwanYeong Kim <gy741.kim@gmail.com> 2021-07-31 17:39:35 +00:00			`condition: and`

			`- type: status`
			`status:`
			`- 200`
Auto Template Signing [Mon Mar 25 11:57:16 UTC 2024] :robot: 2024-03-25 11:57:16 +00:00			`# digest: 4a0a0047304502205524508cec5a7648f3525efc7cc61e2269f85a2218a048a07c6d27965360ef0b022100cffbf244af2a53310124e9534e57a43bad9b0e544ee49ab2bfdcca089ad71ce8:922c64590222798bb761d5b6d8e72950`