Vulnerability-Lookup

GSD-2021-29445

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

jose-node-esm-runtime is an npm package which provides a number of cryptographic functions. In versions prior to 3.11.4 the 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). A patch was released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are `>=3.11.4`. Users should upgrade to `^3.11.4`.

Aliases

CVE-2021-29445

Aliases

CVE-2021-29445

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-29445",
    "description": "jose-node-esm-runtime is an npm package which provides a number of cryptographic functions. In versions prior to 3.11.4 the 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). A patch was released which ensures the HMAC tag is verified before performing CBC decryption. The fixed versions are `\u003e=3.11.4`. Users should upgrade to `^3.11.4`.",
    "id": "GSD-2021-29445"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
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      "id": "GSD-2021-29445",
      "modified": "2023-12-13T01:23:36.968407Z",
      "schema_version": "1.4.0"
    }
  },
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          "solution": "Upgrade to version 3.11.4 or above.",
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          ],
          "date": "2021-04-23",
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            "CVE-2021-29445",
            "GHSA-4v4g-726h-xvfv"
          ],
          "not_impacted": "All versions starting from 3.11.4",
          "package_slug": "npm/jose",
          "pubdate": "2021-04-16",
          "solution": "Upgrade to version 3.11.4 or above.",
          "title": "Information Exposure Through Discrepancy",
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          ],
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            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
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          "userInteractionRequired": false
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            "confidentialityImpact": "HIGH",
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            "privilegesRequired": "NONE",
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            "userInteraction": "NONE",
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            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-03-21T13:19Z",
      "publishedDate": "2021-04-16T22:15Z"
    }
  }
}

CVE-2021-29445 (GCVE-0-2021-29445)

Vulnerability from cvelistv5 – Published: 2021-04-16 21:50 – Updated: 2024-08-03 22:02

Title

Padding Oracle Attack due to Observable Timing Discrepancy in jose-node-esm-runtime

Summary

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 7838 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-node-esm-runtime	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
panva	jose-node-esm-runtime	Affected: < 3.11.4

Show details on NVD website

JSON

To clipboard

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            "url": "https://www.npmjs.com/package/jose-node-esm-runtime"
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    "cna": {
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          "vendor": "panva",
          "versions": [
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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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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