Vulnerability-Lookup

GHSA-9XR6-QF7M-2JV5

Vulnerability from github – Published: 2024-03-27 09:30 – Updated: 2026-10-15 03:33

Details

libcurl did not check the server certificate of TLS connections done to a host specified as an IP address, when built to use mbedTLS. libcurl would wrongly avoid using the set hostname function when the specified hostname was given as an IP address, therefore completely skipping the certificate check. This affects all uses of TLS protocols (HTTPS, FTPS, IMAPS, POPS3, SMTPS, etc).

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2024-2466"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-297"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-27T08:15:41Z",
    "severity": "MODERATE"
  },
  "details": "libcurl did not check the server certificate of TLS connections done to a host specified as an IP address, when built to use mbedTLS.  libcurl would wrongly avoid using the set hostname function when the specified hostname was given as an IP address, therefore completely skipping the certificate check. This affects all uses of TLS protocols (HTTPS, FTPS, IMAPS, POPS3, SMTPS, etc).",
  "id": "GHSA-9xr6-qf7m-2jv5",
  "modified": "2026-10-15T03:33:16Z",
  "published": "2024-03-27T09:30:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-2466"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/2416725"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-331112.html"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-417159.html"
    },
    {
      "type": "WEB",
      "url": "https://curl.se/docs/CVE-2024-2466.html"
    },
    {
      "type": "WEB",
      "url": "https://curl.se/docs/CVE-2024-2466.json"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20240503-0010"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT214118"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT214119"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT214120"
    },
    {
      "type": "WEB",
      "url": "https://www.vicarius.io/vsociety/posts/tls-certificate-check-bypass-curl-with-mbedtls-cve-2024-2466-2468"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2024/Jul/18"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2024/Jul/19"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2024/Jul/20"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2024/03/27/4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-2466 (GCVE-0-2024-2466)

Vulnerability from cvelistv5 – Published: 2024-03-27 07:58 – Updated: 2026-10-15 00:21

Title

TLS certificate check bypass with mbedTLS

Summary

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-23 18:43 UTC

CWE

CWE-297 Improper Validation of Certificate with Host Mismatch
CWE-297 - Improper Validation of Certificate with Host Mismatch

Assigner

curl CNA under the redhat root

CNA scorecard D 49/100 over 36 records in the last 180 days details

References

15 references

URL	Tags
https://curl.se/docs/CVE-2024-2466.json
https://curl.se/docs/CVE-2024-2466.html
https://hackerone.com/reports/2416725
http://www.openwall.com/lists/oss-security/2024/03/27/4
https://security.netapp.com/advisory/ntap-2024050…
https://support.apple.com/kb/HT214119
https://support.apple.com/kb/HT214118
https://support.apple.com/kb/HT214120
http://seclists.org/fulldisclosure/2024/Jul/20
http://seclists.org/fulldisclosure/2024/Jul/18
http://seclists.org/fulldisclosure/2024/Jul/19
https://www.vicarius.io/vsociety/posts/tls-certif…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

7 products

Vendor	Product	Version
curl	curl	Affected: 8.6.0 , ≤ 8.6.0 (semver) Affected: 8.5.0 , ≤ 8.5.0 (semver)
curl	libcurl	Affected: 8.5.0 , ≤ 8.6.0 (custom) cpe:2.3:a:curl:libcurl:8.5.0:::::::*
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)
Siemens	SINEMA Remote Connect Client	Affected: 0 , < V3.2 SP2 (custom)
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)
Siemens	SINEC NMS	Affected: 0 , < V3.0 SP1 (custom)

Credits

Frank Yueh Stefan Eissing

Show details on NVD website

JSON

To clipboard

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      "references": [
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        },
        {
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        },
        {
          "name": "issue",
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    "datePublished": "2024-03-27T07:58:24.520Z",
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    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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