github - ghsa-h4rv-393v-2f5h

GHSA-H4RV-393V-2F5H

Vulnerability from github – Published: 2023-07-18 00:31 – Updated: 2024-04-04 06:12

Details

If a TLS 1.3 client gets neither a PSK (pre shared key) extension nor a KSE (key share extension) when connecting to a malicious server, a default predictable buffer gets used for the IKM (Input Keying Material) value when generating the session master secret. Using a potentially known IKM value when generating the session master secret key compromises the key generated, allowing an eavesdropper to reconstruct it and potentially allowing access to or meddling with message contents in the session. This issue does not affect client validation of connected servers, nor expose private key information, but could result in an insecure TLS 1.3 session when not controlling both sides of the connection. wolfSSL recommends that TLS 1.3 client side users update the version of wolfSSL used.

Severity ?

9.1 (Critical)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2023-3724"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-07-17T22:15:09Z",
    "severity": "HIGH"
  },
  "details": "If a TLS 1.3 client gets neither a PSK (pre shared key) extension nor a KSE (key share extension) when connecting to a malicious server, a default predictable buffer gets used for the IKM (Input Keying Material) value when generating the session master secret. Using a potentially known IKM value when generating the session master secret key compromises the key generated, allowing an eavesdropper to reconstruct it and potentially allowing access to or meddling with message contents in the session. This issue does not affect client validation of connected servers, nor expose private key information, but could result in an insecure TLS 1.3 session when not controlling both sides of the connection. wolfSSL recommends that TLS 1.3 client side users update the version of wolfSSL used.\u00a0\n\n\n",
  "id": "GHSA-h4rv-393v-2f5h",
  "modified": "2024-04-04T06:12:07Z",
  "published": "2023-07-18T00:31:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3724"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wolfSSL/wolfssl/pull/6412"
    },
    {
      "type": "WEB",
      "url": "https://www.wolfssl.com/docs/security-vulnerabilities"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2023-3724 (GCVE-0-2023-3724)

Vulnerability from cvelistv5 – Published: 2023-07-17 21:13 – Updated: 2024-10-29 15:53

Summary

Severity ?

9.1 (Critical)


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

CWE

CWE-20 - Improper Input Validation

Assigner

wolfSSL

References

URL

Tags

	https://github.com/wolfSSL/wolfssl/pull/6412	patch
	https://www.wolfssl.com/docs/security-vulnerabilities/

Impacted products

	Vendor	Product	Version
	wolfSSL	wolfSSL	Affected: 3.14.0 , ≤ 5.6.0 (release bundle)

Credits

Johannes from Sectra Communications and Linköping University

Show details on NVD website

JSON

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            "tags": [
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            "url": "https://www.wolfssl.com/docs/security-vulnerabilities/"
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        "metrics": [
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                "id": "CVE-2023-3724",
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                "timestamp": "2024-10-29T15:53:34.846508Z",
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Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-H4RV-393V-2F5H

CVE-2023-3724 (GCVE-0-2023-3724)

Tags

Sightings

Nomenclature