Vulnerability-Lookup

GHSA-58F5-HFQC-JGCH

Vulnerability from github – Published: 2021-04-19 14:57 – Updated: 2021-04-16 23:01

Summary

Padding Oracle Attack due to Observable Timing Discrepancy in jose

Details

jose is an npm library providing a number of cryptographic operations.

Impact

AES_CBC_HMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if either failed JWEDecryptionFailed would be thrown. But a possibly observable difference in timing when padding error would occur while decrypting the ciphertext makes a padding oracle and an adversary might be able to make use of that oracle to decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block).

Patches

All major release versions have had a patch released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are ^1.28.1 || ^2.0.5 || >=3.11.4.

Users should upgrade their v1.x dependency to ^1.28.1, their v2.x dependency to ^2.0.5, and their v3.x dependency to ^3.11.4

Credits

Thanks to Morgan Brown of Microsoft for bringing this up and Eva Sarafianou (@esarafianou) for helping to score this advisory.

Severity

5.9 (Medium)


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

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "jose"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.0.0"
            },
            {
              "fixed": "1.28.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "jose"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.0.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "jose"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.11.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-29443"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-203",
      "CWE-696"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-04-16T23:01:38Z",
    "nvd_published_at": "2021-04-16T18:15:00Z",
    "severity": "MODERATE"
  },
  "details": "jose is an npm library providing a number of cryptographic operations.\n### Impact\n\n[AES_CBC_HMAC_SHA2 Algorithm](https://tools.ietf.org/html/rfc7518#section-5.2) (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if either failed `JWEDecryptionFailed` would be thrown. But a possibly observable difference in timing when padding error would occur while decrypting the ciphertext makes a padding oracle and an adversary might be able to make use of that oracle to decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block).\n\n### Patches\n\nAll major release versions have had a patch released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are `^1.28.1 || ^2.0.5 || \u003e=3.11.4`.\n\nUsers should upgrade their v1.x dependency to [`^1.28.1`](https://github.com/panva/jose/releases/tag/v1.28.1), their v2.x dependency to [`^2.0.5`](https://github.com/panva/jose/releases/tag/v2.0.5), and their v3.x dependency to [`^3.11.4`](https://github.com/panva/jose/releases/tag/v3.11.4)\n\n### Credits\nThanks to Morgan Brown of Microsoft for bringing this up and Eva Sarafianou (@esarafianou) for helping to score this advisory.",
  "id": "GHSA-58f5-hfqc-jgch",
  "modified": "2021-04-16T23:01:38Z",
  "published": "2021-04-19T14:57:22Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/panva/jose/security/advisories/GHSA-58f5-hfqc-jgch"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-29443"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/package/jose"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Padding Oracle Attack due to Observable Timing Discrepancy in jose"
}

CVE-2021-29443 (GCVE-0-2021-29443)

Vulnerability from cvelistv5 – Published: 2021-04-16 17:35 – Updated: 2024-08-03 22:02

Title

Padding Oracle Attack due to Observable Timing Discrepancy in jose

Summary

jose is an npm library providing a number of cryptographic operations. In vulnerable versions AES_CBC_HMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if either failed `JWEDecryptionFailed` would be thrown. A possibly observable difference in timing when padding error would occur while decrypting the ciphertext makes a padding oracle and an adversary might be able to make use of that oracle to decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). All major release versions have had a patch released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are `^1.28.1 || ^2.0.5 || >=3.11.4`. Users should upgrade their v1.x dependency to ^1.28.1, their v2.x dependency to ^2.0.5, and their v3.x dependency to ^3.11.4. Thanks to Jason from Microsoft Vulnerability Research (MSVR) for bringing this up and Eva Sarafianou (@esarafianou) for helping to score this advisory.

Severity

5.9 (Medium)


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

CWE

CWE-203 - {"CWE-203":"Observable Discrepancy"}

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7765 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/panva/jose/security/advisories…	x_refsource_CONFIRM
https://www.npmjs.com/package/jose	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
panva	jose	Affected: < 1.28.1 Affected: >= 2.0.0, < 2.0.5 Affected: >= 3.0.0, < 3.11.4

Show details on NVD website

JSON

To clipboard

{
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          "dateUpdated": "2024-08-03T22:02:52.017Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/panva/jose/security/advisories/GHSA-58f5-hfqc-jgch"
          },
          {
            "tags": [
              "x_refsource_MISC",
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            ],
            "url": "https://www.npmjs.com/package/jose"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "jose",
          "vendor": "panva",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.28.1"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.0.0, \u003c 2.0.5"
            },
            {
              "status": "affected",
              "version": "\u003e= 3.0.0, \u003c 3.11.4"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "jose is an npm library providing a number of cryptographic operations. In vulnerable versions AES_CBC_HMAC_SHA2 Algorithm (A128CBC-HS256, A192CBC-HS384, A256CBC-HS512) decryption would always execute both HMAC tag verification and CBC decryption, if either failed `JWEDecryptionFailed` would be thrown. A possibly observable difference in timing when padding error would occur while decrypting the ciphertext makes a padding oracle and an adversary might be able to make use of that oracle to decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). All major release versions have had a patch released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are `^1.28.1 || ^2.0.5 || \u003e=3.11.4`. Users should upgrade their v1.x dependency to ^1.28.1, their v2.x dependency to ^2.0.5, and their v3.x dependency to ^3.11.4. Thanks to Jason from Microsoft Vulnerability Research (MSVR) for bringing this up and Eva Sarafianou (@esarafianou) for helping to score this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
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            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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          }
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              "cweId": "CWE-203",
              "description": "{\"CWE-203\":\"Observable Discrepancy\"}",
              "lang": "en",
              "type": "CWE"
            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2021-04-16T17:35:11.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/panva/jose/security/advisories/GHSA-58f5-hfqc-jgch"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.npmjs.com/package/jose"
        }
      ],
      "source": {
        "advisory": "GHSA-58f5-hfqc-jgch",
        "discovery": "UNKNOWN"
      },
      "title": "Padding Oracle Attack due to Observable Timing Discrepancy in jose",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-29443",
          "STATE": "PUBLIC",
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        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "jose",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 1.28.1"
                          },
                          {
                            "version_value": "\u003e= 2.0.0, \u003c 2.0.5"
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                          {
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            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
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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.

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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.
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