github - ghsa-v4m2-x4rp-hv22

ghsa-v4m2-x4rp-hv22

Vulnerability from github

Published

2023-04-06 18:30

Modified

2023-04-17 18:30

Severity ?

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

Templates do not properly consider backticks (`) as Javascript string delimiters, and do not escape them as expected. Backticks are used, since ES6, for JS template literals. If a template contains a Go template action within a Javascript template literal, the contents of the action can be used to terminate the literal, injecting arbitrary Javascript code into the Go template. As ES6 template literals are rather complex, and themselves can do string interpolation, the decision was made to simply disallow Go template actions from being used inside of them (e.g. "var a = {{.}}"), since there is no obviously safe way to allow this behavior. This takes the same approach as github.com/google/safehtml. With fix, Template.Parse returns an Error when it encounters templates like this, with an ErrorCode of value 12. This ErrorCode is currently unexported, but will be exported in the release of Go 1.21. Users who rely on the previous behavior can re-enable it using the GODEBUG flag jstmpllitinterp=1, with the caveat that backticks will now be escaped. This should be used with caution.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-24538"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-04-06T16:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "Templates do not properly consider backticks (`) as Javascript string delimiters, and do not escape them as expected. Backticks are used, since ES6, for JS template literals. If a template contains a Go template action within a Javascript template literal, the contents of the action can be used to terminate the literal, injecting arbitrary Javascript code into the Go template. As ES6 template literals are rather complex, and themselves can do string interpolation, the decision was made to simply disallow Go template actions from being used inside of them (e.g. \"var a = {{.}}\"), since there is no obviously safe way to allow this behavior. This takes the same approach as github.com/google/safehtml. With fix, Template.Parse returns an Error when it encounters templates like this, with an ErrorCode of value 12. This ErrorCode is currently unexported, but will be exported in the release of Go 1.21. Users who rely on the previous behavior can re-enable it using the GODEBUG flag jstmpllitinterp=1, with the caveat that backticks will now be escaped. This should be used with caution.",
  "id": "GHSA-v4m2-x4rp-hv22",
  "modified": "2023-04-17T18:30:29Z",
  "published": "2023-04-06T18:30:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-24538"
    },
    {
      "type": "WEB",
      "url": "https://go.dev/cl/482079"
    },
    {
      "type": "WEB",
      "url": "https://go.dev/issue/59234"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/golang-announce/c/Xdv6JL9ENs8"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2023-1703"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202311-09"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2023-24538

Vulnerability from cvelistv5

Published

2023-04-06 15:50

Modified

2024-11-15 13:08

Severity ?

Summary

Backticks not treated as string delimiters in html/template

References

▼	URL	Tags
	https://go.dev/issue/59234
	https://go.dev/cl/482079
	https://groups.google.com/g/golang-announce/c/Xdv6JL9ENs8
	https://pkg.go.dev/vuln/GO-2023-1703
	https://security.gentoo.org/glsa/202311-09

Impacted products

▼	Vendor	Product
	Go standard library	html/template

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-11-15T13:08:09.818Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://go.dev/issue/59234"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://go.dev/cl/482079"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://groups.google.com/g/golang-announce/c/Xdv6JL9ENs8"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://pkg.go.dev/vuln/GO-2023-1703"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202311-09"
          },
          {
            "url": "https://security.netapp.com/advisory/ntap-20241115-0007/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "html/template",
          "product": "html/template",
          "programRoutines": [
            {
              "name": "tJS"
            },
            {
              "name": "tJSDelimited"
            },
            {
              "name": "Template.Execute"
            },
            {
              "name": "Template.ExecuteTemplate"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.19.8",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.20.3",
              "status": "affected",
              "version": "1.20.0-0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Sohom Datta, Manipal Institute of Technology"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Templates do not properly consider backticks (`) as Javascript string delimiters, and do not escape them as expected. Backticks are used, since ES6, for JS template literals. If a template contains a Go template action within a Javascript template literal, the contents of the action can be used to terminate the literal, injecting arbitrary Javascript code into the Go template. As ES6 template literals are rather complex, and themselves can do string interpolation, the decision was made to simply disallow Go template actions from being used inside of them (e.g. \"var a = {{.}}\"), since there is no obviously safe way to allow this behavior. This takes the same approach as github.com/google/safehtml. With fix, Template.Parse returns an Error when it encounters templates like this, with an ErrorCode of value 12. This ErrorCode is currently unexported, but will be exported in the release of Go 1.21. Users who rely on the previous behavior can re-enable it using the GODEBUG flag jstmpllitinterp=1, with the caveat that backticks will now be escaped. This should be used with caution."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-06-12T19:08:03.854Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/issue/59234"
        },
        {
          "url": "https://go.dev/cl/482079"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/Xdv6JL9ENs8"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2023-1703"
        },
        {
          "url": "https://security.gentoo.org/glsa/202311-09"
        }
      ],
      "title": "Backticks not treated as string delimiters in html/template"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2023-24538",
    "datePublished": "2023-04-06T15:50:48.185Z",
    "dateReserved": "2023-01-25T21:19:20.642Z",
    "dateUpdated": "2024-11-15T13:08:09.818Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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