# CVE-2024-3272: D-Link NAS - RCE

> Live exploitation tracking for CVE-2024-3272 by the CrowdSec Live Exploit Tracker, built from real-world attack data crowdsourced from CrowdSec's global network.

Page: https://tracker.crowdsec.net/cves/CVE-2024-3272

## Key facts

- **Exploitation phase:** Background Noise. Continuous low-level scanning or exploitation attempts are observed, mostly opportunistic and automated.
- **CVSS score:** 9.8
- **Public exploit available:** Yes
- **Affected products:** D-Link DNS-340L
- **Weaknesses:** CWE-287 (Improper Authentication)
- **Tags:** nas

## Description

** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as very critical, has been found in D-Link DNS-320L, DNS-325, DNS-327L and DNS-340L up to 20240403. This issue affects some unknown processing of the file /cgi-bin/nas_sharing.cgi of the component HTTP GET Request Handler. The manipulation of the argument user with the input messagebus leads to hard-coded credentials. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-259283. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: Vendor was contacted early and confirmed immediately that the product is end-of-life. It should be retired and replaced.

## CrowdSec analysis

[CVE-2024-3272](https://euvd.enisa.europa.eu/vulnerability/CVE-2024-3272) is a critical vulnerability affecting certain D-Link NAS devices, allowing remote attackers to exploit weaknesses in handling HTTP requests and gain access through hard-coded credentials.

CrowdSec has been tracking this vulnerability and its exploits since 18th of July 2024.

CrowdSec network data shows that most actors exploiting CVE-2024-3272 rely on broad, untargeted scans with minimal filtering. The activity is largely automated and opportunistic in nature.
CrowdSec data also reveals a clear uptick in attacks involving CVE-2024-3272 over the past week. Activity is above the usual baseline, suggesting growing attention from attackers. This may reflect rising awareness, recent exploit releases, or expanded targeting efforts.

Attackers frequently probe URLs containing `/cgi-bin/nas_sharing.cgi` in their attempts to leverage this flaw.

## Timeline

- 2024-04-04: CVE Published. CVE-2024-3272 is published to NVD.
- 2024-04-11: CISA KEV. CVE-2024-3272 is added to the Known Exploited Vulnerabilities catalog by CISA.
- 2024-05-02: CISA Remediation Deadline. Expiration of the CISA remediation deadline as described in [BOD 22-01](https://www.cisa.gov/news-events/directives/bod-22-01-reducing-significant-risk-known-exploited-vulnerabilities).
- 2024-07-18: Rule Released. CrowdSec releases a rule to detect CVE-2024-3272 exploitation attempts against the CrowdSec Network.
- 2024-11-23: CrowdSec First Seen. CrowdSec observes in-the-wild exploitation of CVE-2024-3272 for the first time.

## References

- https://github.com/netsecfish/dlink
- https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10383
- https://vuldb.com/?id.259283
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-3272.yaml

## Live exploitation data

The [Live Exploit Tracker page](https://tracker.crowdsec.net/cves/CVE-2024-3272) follows observed exploitation activity for CVE-2024-3272. [Request an API key](https://tracker.crowdsec.net/request-api-key) for full access to its exploitation timeline, attacking IP addresses and blocklists.