VULNpocalypse

CVE-2024-53704: SonicWall SonicOS SSLVPN Improper Authentication Vulnerability

Advisory generated from the CVE record, CISA, Exploit Observer and VEDAS: what it is, whether it is exploited, who is affected, and how to fix and detect it.

Generated by VEDAS. Scores as of 2026-11-01 19:19 UTC. Rebuilt every few hours from cve-scores, CISA KEV and vedas-signatures. How this works and its limits.

What it is

An Improper Authentication vulnerability in the SSLVPN authentication mechanism allows a remote attacker to bypass authentication.

Description quoted from the CVE record (assigned by sonicwall, published 2025-01-09).

Weakness: CWE-287 Improper Authentication

How it can be exploited

Exploitable over the network with low attack complexity needing no privileges and no user interaction. Impact: confidentiality low, integrity none, availability high. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

CISA assessment (SSVC): CISA assesses exploitation as active. Automatable: yes. Technical impact: partial.

On CISA KEV since
2025-02-18
US federal deadline
2025-03-11
Ransomware use
Yes

Public exploit evidence (Exploit Observer)

Also known as: BDU:2025-00205, CNNVD-202501-1078, EUVD-2024-52037, GHSA-rwgq-wj29-fx3r, ZDI-25-012

VEDAS cluster: VEDAS:FLASHMOVER

Exploit Observer links 7 pieces of public exploit code or detection modules that name this CVE or one of its aliases.

Exploit code and modules (7)

Code that names this CVE. A repository can be a working exploit, a scanner, a fake or malware; read it before running anything.

Research and write-ups (4)

Vulnerability databases and vendor advisories (5)

Catalogue entries, not exploit evidence.

249 more references returned by Exploit Observer did not name this CVE or an alias, so they are left out.

VEDAS data as of 2026-11-01T17:12 UTC; fetched 2026-11-02.

Live scores

EPSS
0.953
very likely to be attacked soon
VEDAS
0.988
strong exploit evidence
On CISA KEV
Yes, since 2025-02-18
Detection rule
Nuclei · Suricata
EPSS (chance of attack)
10No cve-scores data 2026-02-22 to 2026-08-08no data0.1CVE-2024-53704 EPSS over time2025-042026-11-01
VEDAS (exploit evidence)
10No cve-scores data 2026-02-22 to 2026-08-08no data0.9CVE-2024-53704 VEDAS over time2025-042026-11-01

Thin horizontal line: the “likely” (EPSS 0.10) or “strong” (VEDAS 0.90) threshold. Shaded “no data” areas are periods when cve-scores did not publish.

Who is affected

ProductAffectedNot affected
SonicWall SonicOSversion 7.1.1-7058 and older versions
version 7.1.2-7019
version 8.0.0-8035		Not stated

Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.

Exploit Observer also maps it to: sonicwall sonicos.

How to fix it

CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Vendor guidance:

How to detect it

Nuclei template (active check)

Sonicwall - Authentication Bypass

An Improper Authentication vulnerability in the SSLVPN authentication mechanism allows a remote attacker to bypass authentication.

Name and description quoted from the template, written by VEDAS.

The template sends 1 request (GET /cgi-bin/sslvpnclient?launchplatform=); it decides using regex, status, word matchers. Severity in the template: critical. Marked as not yet verified against a live vulnerable target.

Run it against a host you own or are authorised to test:

bash
nuclei -u https://your-host -t CVE-2024-53704.yaml
Show the template (43 lines)
yaml
id: CVE-2024-53704

info:
  name: "Sonicwall - Authentication Bypass"
  author: vedas-arpsyndicate
  severity: critical
  description: |
    An Improper Authentication vulnerability in the SSLVPN authentication mechanism allows a remote attacker to
    bypass authentication.
  reference:
    - https://www.exploit.observer/?keyword=CVE-2024-53704&match=exact
    - https://subdomain.center/?engine=ammonites&keyword=sonicwall&match=exact
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2024-53704
    cwe-id: CWE-287
  metadata:
    verified: false
  tags: cve,cve2024,sonicwall,kev,vkev,vuln
http:
  - raw:
      - |
        GET /cgi-bin/sslvpnclient?launchplatform= HTTP/1.1
        Host: {{Hostname}}
        Cookie: swap=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
        Connection: close

    matchers-condition: and
    matchers:
      - type: word
        words:
          - "NELaunchX1"

      - type: status
        status:
          - 200

    extractors:
      - type: regex
        part: header
        regex:
          - 'Set-Cookie: swap=([a-zA-Z0-9]+);'

CVE-2024-53704.yaml on GitHub

Suricata rules (network detection)

1 rule that alert on traffic matching this exploit: VEDAS CVE-2024-53704 Sonicwall - Authentication Bypass. Add them to your Suricata rule set and reload.

Show the rules
suricata
alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2024-53704 Sonicwall - Authentication Bypass"; flow:established,to_server; http.uri; content:"/cgi-bin/sslvpnclient"; nocase; fast_pattern; content:"launchplatform="; nocase; classtype:web-application-attack; reference:cve,CVE-2024-53704; reference:url,https://www.exploit.observer/?keyword=CVE-2024-53704&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=sonicwall&match=exact; sid:1009248; rev:1;)

CVE-2024-53704.rules on GitHub

References

Vendor advisories and patches

Government sources

Other databases

Where this comes from

This advisory is generated automatically by VEDAS from: CVE.org record, CISA KEV, cve-scores (EPSS and VEDAS), Exploit Observer, vedas-signatures. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.