GSD-2023-30536

Vulnerability from gsd - Updated: 2023-12-13 01:20
Details
slim/psr7 is a PSR-7 implementation for use with Slim 4. In versions prior to 1.6.1 an attacker could sneak in a newline (\n) into both the header names and values. While the specification states that \r\n\r\n is used to terminate the header list, many servers in the wild will also accept \n\n. An attacker that is able to control the header names that are passed to Slilm-Psr7 would be able to intentionally craft invalid messages, possibly causing application errors or invalid HTTP requests being sent out with an PSR-18 HTTP client. The latter might present a denial of service vector if a remote service’s web application firewall bans the application due to the receipt of malformed requests. The issue has been patched in version 1.6.1. There are no known workarounds to this issue. Users are advised to upgrade.
Aliases
Aliases
CVE-2023-30536
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{
  "GSD": {
    "alias": "CVE-2023-30536",
    "id": "GSD-2023-30536"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-30536"
      ],
      "details": "slim/psr7 is a PSR-7 implementation for use with Slim 4. In versions prior to 1.6.1 an attacker could sneak in a newline (\\n) into both the header names and values. While the specification states that \\r\\n\\r\\n is used to terminate the header list, many servers in the wild will also accept \\n\\n. An attacker that is able to control the header names that are passed to Slilm-Psr7 would be able to intentionally craft invalid messages, possibly causing application errors or invalid HTTP requests being sent out with an PSR-18 HTTP client. The latter might present a denial of service vector if a remote service\u2019s web application firewall bans the application due to the receipt of malformed requests. The issue has been patched in version 1.6.1. There are no known workarounds to this issue. Users are advised to upgrade.",
      "id": "GSD-2023-30536",
      "modified": "2023-12-13T01:20:51.946846Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2023-30536",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Slim-Psr7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "\u003c 1.6.1"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "slimphp"
            }
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      "description": {
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            "value": "slim/psr7 is a PSR-7 implementation for use with Slim 4. In versions prior to 1.6.1 an attacker could sneak in a newline (\\n) into both the header names and values. While the specification states that \\r\\n\\r\\n is used to terminate the header list, many servers in the wild will also accept \\n\\n. An attacker that is able to control the header names that are passed to Slilm-Psr7 would be able to intentionally craft invalid messages, possibly causing application errors or invalid HTTP requests being sent out with an PSR-18 HTTP client. The latter might present a denial of service vector if a remote service\u2019s web application firewall bans the application due to the receipt of malformed requests. The issue has been patched in version 1.6.1. There are no known workarounds to this issue. Users are advised to upgrade."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-436",
                "lang": "eng",
                "value": "CWE-436: Interpretation Conflict"
              }
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        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/slimphp/Slim-Psr7/security/advisories/GHSA-q2qj-628g-vhfw",
            "refsource": "MISC",
            "url": "https://github.com/slimphp/Slim-Psr7/security/advisories/GHSA-q2qj-628g-vhfw"
          },
          {
            "name": "https://github.com/slimphp/Slim-Psr7/commit/ed1d553225dd190875d8814c47460daed4b550bb",
            "refsource": "MISC",
            "url": "https://github.com/slimphp/Slim-Psr7/commit/ed1d553225dd190875d8814c47460daed4b550bb"
          },
          {
            "name": "https://www.rfc-editor.org/rfc/rfc7230#section-3.2.4",
            "refsource": "MISC",
            "url": "https://www.rfc-editor.org/rfc/rfc7230#section-3.2.4"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-q2qj-628g-vhfw",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c1.6.1",
          "affected_versions": "All versions before 1.6.1",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
          "cwe_ids": [
            "CWE-1035",
            "CWE-436",
            "CWE-937"
          ],
          "date": "2023-05-01",
          "description": "slim/psr7 is a PSR-7 implementation for use with Slim 4. In versions prior to 1.6.1 an attacker could sneak in a newline (\\n) into both the header names and values. While the specification states that \\r\\n\\r\\n is used to terminate the header list, many servers in the wild will also accept \\n\\n. An attacker that is able to control the header names that are passed to Slilm-Psr7 would be able to intentionally craft invalid messages, possibly causing application errors or invalid HTTP requests being sent out with an PSR-18 HTTP client. The latter might present a denial of service vector if a remote service\u2019s web application firewall bans the application due to the receipt of malformed requests. The issue has been patched in version 1.6.1. There are no known workarounds to this issue. Users are advised to upgrade.",
          "fixed_versions": [
            "1.6.1"
          ],
          "identifier": "CVE-2023-30536",
          "identifiers": [
            "CVE-2023-30536",
            "GHSA-q2qj-628g-vhfw"
          ],
          "not_impacted": "All versions starting from 1.6.1",
          "package_slug": "packagist/slim/psr7",
          "pubdate": "2023-04-17",
          "solution": "Upgrade to version 1.6.1 or above.",
          "title": "Interpretation Conflict",
          "urls": [
            "https://github.com/slimphp/Slim-Psr7/security/advisories/GHSA-q2qj-628g-vhfw",
            "https://nvd.nist.gov/vuln/detail/CVE-2023-30536",
            "https://github.com/slimphp/Slim-Psr7/commit/ed1d553225dd190875d8814c47460daed4b550bb",
            "https://www.rfc-editor.org/rfc/rfc7230#section-3.2.4",
            "https://github.com/advisories/GHSA-q2qj-628g-vhfw"
          ],
          "uuid": "0c1bc4c9-de86-4762-9f8f-ecb6e5cab15f"
        }
      ]
    },
    "nvd.nist.gov": {
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        "nodes": [
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            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:slimframework:slim_psr-7:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.6.1",
                "vulnerable": true
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          "ID": "CVE-2023-30536"
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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              "lang": "en",
              "value": "slim/psr7 is a PSR-7 implementation for use with Slim 4. In versions prior to 1.6.1 an attacker could sneak in a newline (\\n) into both the header names and values. While the specification states that \\r\\n\\r\\n is used to terminate the header list, many servers in the wild will also accept \\n\\n. An attacker that is able to control the header names that are passed to Slilm-Psr7 would be able to intentionally craft invalid messages, possibly causing application errors or invalid HTTP requests being sent out with an PSR-18 HTTP client. The latter might present a denial of service vector if a remote service\u2019s web application firewall bans the application due to the receipt of malformed requests. The issue has been patched in version 1.6.1. There are no known workarounds to this issue. Users are advised to upgrade."
            }
          ]
        },
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              "description": [
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        "references": {
          "reference_data": [
            {
              "name": "https://github.com/slimphp/Slim-Psr7/security/advisories/GHSA-q2qj-628g-vhfw",
              "refsource": "MISC",
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            },
            {
              "name": "https://www.rfc-editor.org/rfc/rfc7230#section-3.2.4",
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              "url": "https://www.rfc-editor.org/rfc/rfc7230#section-3.2.4"
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              "name": "https://github.com/slimphp/Slim-Psr7/commit/ed1d553225dd190875d8814c47460daed4b550bb",
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              "url": "https://github.com/slimphp/Slim-Psr7/commit/ed1d553225dd190875d8814c47460daed4b550bb"
            }
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      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.5
        }
      },
      "lastModifiedDate": "2023-05-01T16:38Z",
      "publishedDate": "2023-04-17T22:15Z"
    }
  }
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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