GHSA-2CF5-4W76-R9QV高危已审查

Arbitrary Code Execution in handlebars

OSV 1.4.0 · github-reviewed · 修改于 2024-01-30 04:54

发布时间

2020-09-04 22:57

GitHub 审查时间

2020-09-01 02:54

NVD 发布时间

—

源文件

advisories/github-reviewed/2020/09/GHSA-2cf5-4w76-r9qv/GHSA-2cf5-4w76-r9qv.json

公告说明

Versions of handlebars prior to 3.0.8 or 4.5.2 are vulnerable to Arbitrary Code Execution. The package's lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript in the system. It can be used to run arbitrary code in a server processing Handlebars templates or on a victim's browser (effectively serving as Cross-Site Scripting).

The following template can be used to demonstrate the vulnerability:

	{{#with split as |a|}}
		{{pop (push "alert('Vulnerable Handlebars JS');")}}
		{{#with (concat (lookup join (slice 0 1)))}}
			{{#each (slice 2 3)}}
				{{#with (apply 0 a)}}
					{{.}}
				{{/with}}
			{{/each}}
		{{/with}}
	{{/with}}
{{/with}}```


## Recommendation

Upgrade to version 3.0.8, 4.5.2 or later.

受影响的软件包

npm

handlebars

ECOSYSTEM

标识信息

别名 / CVE

无

CWE

CWE-94

软件生态

npm

扩展资料

暂无扩展资料。

CVSS 评分

CVSS_V3

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

原始 OSV JSON

{
  "id": "GHSA-2cf5-4w76-r9qv",
  "aliases": [],
  "details": "Versions of `handlebars` prior to 3.0.8 or 4.5.2 are vulnerable to Arbitrary Code Execution. The package's lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript in the system. It can be used to run arbitrary code in a server processing Handlebars templates or on a victim's browser (effectively serving as Cross-Site Scripting).\n\nThe following template can be used to demonstrate the vulnerability:  \n```{{#with \"constructor\"}}\n\t{{#with split as |a|}}\n\t\t{{pop (push \"alert('Vulnerable Handlebars JS');\")}}\n\t\t{{#with (concat (lookup join (slice 0 1)))}}\n\t\t\t{{#each (slice 2 3)}}\n\t\t\t\t{{#with (apply 0 a)}}\n\t\t\t\t\t{{.}}\n\t\t\t\t{{/with}}\n\t\t\t{{/each}}\n\t\t{{/with}}\n\t{{/with}}\n{{/with}}```\n\n\n## Recommendation\n\nUpgrade to version 3.0.8, 4.5.2 or later.",
  "summary": "Arbitrary Code Execution in handlebars",
  "affected": [
    {
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.8"
            }
          ]
        }
      ],
      "package": {
        "name": "handlebars",
        "ecosystem": "npm"
      }
    },
    {
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.5.2"
            }
          ]
        }
      ],
      "package": {
        "name": "handlebars",
        "ecosystem": "npm"
      }
    }
  ],
  "modified": "2024-01-29T20:54:51Z",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:L"
    }
  ],
  "published": "2020-09-04T14:57:38Z",
  "references": [
    {
      "url": "https://www.npmjs.com/advisories/1316",
      "type": "WEB"
    }
  ],
  "schema_version": "1.4.0",
  "database_specific": {
    "cwe_ids": [
      "CWE-94"
    ],
    "severity": "HIGH",
    "github_reviewed": true,
    "nvd_published_at": null,
    "github_reviewed_at": "2020-08-31T18:54:52Z"
  }
}