Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2024-05-14 07:29

Modified

2026-09-08 08:34

Summary

PHP function password_verify can erroneously return true when argument contains NUL

Details

In PHP version 8.1.* before 8.1.28, 8.2.* before 8.2.18, 8.3.* before 8.3.5, if a password stored with password_hash() starts with a null byte (\x00), testing a blank string as the password via password_verify() will incorrectly return true.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "php",
        "purl": "pkg:bitnami/php"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.1.28"
            },
            {
              "introduced": "8.2.0"
            },
            {
              "fixed": "8.2.18"
            },
            {
              "introduced": "8.3.0"
            },
            {
              "fixed": "8.3.5"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-3096"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
  },
  "details": "In PHP\u00a0 version 8.1.* before 8.1.28, 8.2.* before 8.2.18, 8.3.* before 8.3.5, if\u00a0a password stored with password_hash() starts with a null byte (\\x00), testing a blank string as the password via password_verify() will incorrectly return true.",
  "id": "BIT-php-2024-3096",
  "modified": "2026-09-08T08:34:36.952Z",
  "published": "2024-05-14T07:29:06.888Z",
  "references": [
    {
      "type": "DISCUSSION",
      "url": "http://www.openwall.com/lists/oss-security/2024/04/12/11"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/php/php-src/security/advisories/GHSA-h746-cjrr-wfmr"
    },
    {
      "type": "DISCUSSION",
      "url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00005.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://security.netapp.com/advisory/ntap-20240510-0010/"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-3096"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KJZK3X6B7FBE32FETDSMRLJXTFTHKWSY/"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZGWIK3HMBACERGB4TSBB2JUOMPYY2VKY/"
    }
  ],
  "schema_version": "1.5.0",
  "summary": "PHP function password_verify can erroneously return true when argument contains NUL"
}

CVE-2024-3096 (GCVE-0-2024-3096)

Vulnerability from cvelistv5 – Published: 2024-04-29 03:42 – Updated: 2025-11-04 17:19

Title

PHP function password_verify can erroneously return true when argument contains NUL

Summary

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-04-29 15:14 UTC

CWE

CWE-20 - Improper Input Validation

Assigner

php CNA under the mitre root

CNA scorecard B 81/100 over 27 records in the last 180 days details

References

6 references

URL	Tags
https://github.com/php/php-src/security/advisorie…
http://www.openwall.com/lists/oss-security/2024/0…
https://lists.debian.org/debian-lts-announce/2024…
https://security.netapp.com/advisory/ntap-2024051…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…

Impacted products

4 products

Vendor	Product	Version
PHP Group	PHP	Affected: 8.1.* , < 8.1.28 (semver) Affected: 8.2.* , < 8.2.18 (semver) Affected: 8.3.* , < 8.3.5 (semver)
php_group	php	Affected: 8.1.0 cpe:2.3:a:php_group:php:8.1.0:::::::*
php_group	php	Affected: 8.2.0 cpe:2.3:a:php_group:php:8.2.0:::::::*
php_group	php	Affected: 8.3.0 cpe:2.3:a:php_group:php:8.3.0:::::::*

Date Public

2024-04-11 22:59

Credits

Eric Stern

Show details on NVD website

JSON

To clipboard

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            "defaultStatus": "unknown",
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            "vendor": "php_group",
            "versions": [
              {
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        "metrics": [
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            "tags": [
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            "url": "https://github.com/php/php-src/security/advisories/GHSA-h746-cjrr-wfmr"
          },
          {
            "tags": [
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            ],
            "url": "http://www.openwall.com/lists/oss-security/2024/04/12/11"
          },
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            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00005.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20240510-0010/"
          },
          {
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZGWIK3HMBACERGB4TSBB2JUOMPYY2VKY/"
          },
          {
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KJZK3X6B7FBE32FETDSMRLJXTFTHKWSY/"
          }
        ],
        "title": "CVE Program Container"
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    ],
    "cna": {
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        {
          "defaultStatus": "affected",
          "product": "PHP",
          "vendor": "PHP Group",
          "versions": [
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              "lessThan": "8.1.28",
              "status": "affected",
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              "versionType": "semver"
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              "versionType": "semver"
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              "lessThan": "8.3.5",
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            }
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          "type": "reporter",
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      "descriptions": [
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          "lang": "en",
          "supportingMedia": [
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              "type": "text/html",
              "value": "\u003cp\u003eIn PHP\u0026nbsp; version 8.1.* before 8.1.28, 8.2.* before 8.2.18, 8.3.* before 8.3.5, if\u0026nbsp;a password stored with password_hash() starts with a null byte (\\x00), testing a blank string as the password via password_verify() will incorrectly return true.\u003c/p\u003e"
            }
          ],
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        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-52",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-52 Embedding NULL Bytes"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
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            "privilegesRequired": "NONE",
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          "descriptions": [
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      ],
      "providerMetadata": {
        "dateUpdated": "2024-06-10T17:09:44.676Z",
        "orgId": "dd77f84a-d19a-4638-8c3d-a322d820ed2b",
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      "references": [
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        },
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        },
        {
          "url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00005.html"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20240510-0010/"
        }
      ],
      "source": {
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        "discovery": "EXTERNAL"
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      "title": "PHP function password_verify can erroneously return true when argument contains NUL",
      "workarounds": [
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              "base64": false,
              "type": "text/html",
              "value": "Pre-filter potential password strings to ensure they do not contain NUL bytes.\u0026nbsp;"
            }
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    "state": "PUBLISHED"
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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.

Related by attack behaviour

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