Vulnerability-Lookup

GHSA-7W54-GP8X-F33M

Vulnerability from github – Published: 2022-01-12 22:44 – Updated: 2023-07-24 19:32

Summary

Potential exposure of tokens to an Unauthorized Actor

Details

Impact

When using this library as a way to programmatically communicate with Replit in a standalone fashion, if there are multiple failed attempts to contact Replit through a WebSocket, the library will attempt to communicate using a fallback poll-based proxy. The URL of the proxy has changed, so any communication done to the previous URL could potentially reach a server that is outside of Replit's control and the token used to connect to the Repl could be obtained by an attacker, leading to full compromise of that Repl (not of the account).

Patches

This was patched in 7.3.1, by updating the address of the fallback WebSocket polling proxy to the new one.

Workarounds

Specify the new address for the polling host (gp-v2.replit.com) in the ConnectArgs:

const connectOptions: ConnectArgs = {
  // ...
  pollingHost: 'gp-v2.replit.com',
};
client.connect(connectOptions);

For more information

Thanks to https://hackerone.com/orlserg for disclosing this.

If you have any questions or comments about this advisory: * Open an issue in replit/crosis * Email us at security@replit.com

Severity

6.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@replit/crosis"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.3.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-21671"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-01-10T23:18:10Z",
    "nvd_published_at": "2022-01-11T15:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nWhen using this library as a way to programmatically communicate with Replit in a standalone fashion, if there are multiple failed attempts to contact Replit through a WebSocket, the library will attempt to communicate using a fallback poll-based proxy. The URL of the proxy has changed, so any communication done to the previous URL could potentially reach a server that is outside of Replit\u0027s control and the token used to connect to the Repl could be obtained by an attacker, leading to full compromise of that Repl (not of the account).\n\n### Patches\n\nThis was patched in 7.3.1, by updating the address of the fallback WebSocket polling proxy to the new one.\n\n### Workarounds\n\nSpecify the new address for the polling host (`gp-v2.replit.com`) in the `ConnectArgs`:\n\n```typescript\nconst connectOptions: ConnectArgs = {\n  // ...\n  pollingHost: \u0027gp-v2.replit.com\u0027,\n};\nclient.connect(connectOptions);\n```\n\n### For more information\n\nThanks to https://hackerone.com/orlserg for disclosing this.\n\nIf you have any questions or comments about this advisory:\n* Open an issue in [replit/crosis](https://github.com/replit/crosis)\n* Email us at [security@replit.com](mailto:security@replit.com)",
  "id": "GHSA-7w54-gp8x-f33m",
  "modified": "2023-07-24T19:32:58Z",
  "published": "2022-01-12T22:44:47Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/replit/crosis/security/advisories/GHSA-7w54-gp8x-f33m"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-21671"
    },
    {
      "type": "WEB",
      "url": "https://github.com/replit/crosis/commit/e44b6a8f5fa28cb2872e3c19bb8a205bb5bfc281"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/replit/crosis"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Potential exposure of tokens to an Unauthorized Actor"
}

CVE-2022-21671 (GCVE-0-2022-21671)

Vulnerability from cvelistv5 – Published: 2022-01-11 15:05 – Updated: 2025-04-23 19:13

Title

Potential exposure of Replit tokens to an Unauthorized Actor in @replit/crosis

Summary

@replit/crosis is a JavaScript client that speaks Replit's container protocol. A vulnerability that involves exposure of sensitive information exists in versions prior to 7.3.1. When using this library as a way to programmatically communicate with Replit in a standalone fashion, if there are multiple failed attempts to contact Replit through a WebSocket, the library will attempt to communicate using a fallback poll-based proxy. The URL of the proxy has changed, so any communication done to the previous URL could potentially reach a server that is outside of Replit's control and the token used to connect to the Repl could be obtained by an attacker, leading to full compromise of that Repl (not of the account). This was patched in version 7.3.1 by updating the address of the fallback WebSocket polling proxy to the new one. As a workaround, a user may specify the new address for the polling host (`gp-v2.replit.com`) in the `ConnectArgs`. More information about this workaround is available in the GitHub Security Advisory.

Severity

8.1 (High)


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

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/replit/crosis/security/advisor…	x_refsource_CONFIRM
https://github.com/replit/crosis/commit/e44b6a8f5…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
replit	crosis	Affected: < 7.3.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T02:46:39.253Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/replit/crosis/security/advisories/GHSA-7w54-gp8x-f33m"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/replit/crosis/commit/e44b6a8f5fa28cb2872e3c19bb8a205bb5bfc281"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-21671",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T15:57:02.594507Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-23T19:13:35.823Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "crosis",
          "vendor": "replit",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 7.3.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "@replit/crosis is a JavaScript client that speaks Replit\u0027s container protocol. A vulnerability that involves exposure of sensitive information exists in versions prior to 7.3.1. When using this library as a way to programmatically communicate with Replit in a standalone fashion, if there are multiple failed attempts to contact Replit through a WebSocket, the library will attempt to communicate using a fallback poll-based proxy. The URL of the proxy has changed, so any communication done to the previous URL could potentially reach a server that is outside of Replit\u0027s control and the token used to connect to the Repl could be obtained by an attacker, leading to full compromise of that Repl (not of the account). This was patched in version 7.3.1 by updating the address of the fallback WebSocket polling proxy to the new one. As a workaround, a user may specify the new address for the polling host (`gp-v2.replit.com`) in the `ConnectArgs`. More information about this workaround is available in the GitHub Security Advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-01-11T15:05:11.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/replit/crosis/security/advisories/GHSA-7w54-gp8x-f33m"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/replit/crosis/commit/e44b6a8f5fa28cb2872e3c19bb8a205bb5bfc281"
        }
      ],
      "source": {
        "advisory": "GHSA-7w54-gp8x-f33m",
        "discovery": "UNKNOWN"
      },
      "title": "Potential exposure of Replit tokens to an Unauthorized Actor in @replit/crosis",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2022-21671",
          "STATE": "PUBLIC",
          "TITLE": "Potential exposure of Replit tokens to an Unauthorized Actor in @replit/crosis"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "crosis",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 7.3.1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "replit"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "@replit/crosis is a JavaScript client that speaks Replit\u0027s container protocol. A vulnerability that involves exposure of sensitive information exists in versions prior to 7.3.1. When using this library as a way to programmatically communicate with Replit in a standalone fashion, if there are multiple failed attempts to contact Replit through a WebSocket, the library will attempt to communicate using a fallback poll-based proxy. The URL of the proxy has changed, so any communication done to the previous URL could potentially reach a server that is outside of Replit\u0027s control and the token used to connect to the Repl could be obtained by an attacker, leading to full compromise of that Repl (not of the account). This was patched in version 7.3.1 by updating the address of the fallback WebSocket polling proxy to the new one. As a workaround, a user may specify the new address for the polling host (`gp-v2.replit.com`) in the `ConnectArgs`. More information about this workaround is available in the GitHub Security Advisory."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/replit/crosis/security/advisories/GHSA-7w54-gp8x-f33m",
              "refsource": "CONFIRM",
              "url": "https://github.com/replit/crosis/security/advisories/GHSA-7w54-gp8x-f33m"
            },
            {
              "name": "https://github.com/replit/crosis/commit/e44b6a8f5fa28cb2872e3c19bb8a205bb5bfc281",
              "refsource": "MISC",
              "url": "https://github.com/replit/crosis/commit/e44b6a8f5fa28cb2872e3c19bb8a205bb5bfc281"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-7w54-gp8x-f33m",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2022-21671",
    "datePublished": "2022-01-11T15:05:11.000Z",
    "dateReserved": "2021-11-16T00:00:00.000Z",
    "dateUpdated": "2025-04-23T19:13:35.823Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Detection rules are retrieved from Rulezet.

Action not permitted