Vulnerability-Lookup

GHSA-8VXV-2G8P-2249

Vulnerability from github – Published: 2022-05-24 21:33 – Updated: 2022-05-24 21:33

Summary

Observable Timing Discrepancy in totp-rs

Details

Impact

Token comparison was not constant time, and could theorically be used to guess value of an TOTP token, and thus reuse it in the same time window. The attacker would have to know the password beforehand nonetheless.

Patches

Library now used constant-time comparison.

Workarounds

No.

For more information

If you have any questions or comments about this advisory: * Open an issue in totp-rs * Email us at cleo.rebert@gmail.com

Severity

4.2 (Medium)


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

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "totp-rs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-29185"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-203",
      "CWE-208"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-05-24T21:33:15Z",
    "nvd_published_at": "2022-05-20T20:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\nToken comparison was not constant time, and could theorically be used to guess value of an TOTP token, and thus reuse it in the same time window. The attacker would have to know the password beforehand nonetheless.\n\n### Patches\nLibrary now used constant-time comparison.\n\n### Workarounds\nNo.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [totp-rs](https://github.com/constantoine/totp-rs)\n* Email us at [cleo.rebert@gmail.com](mailto:cleo.rebert@gmail.com)\n",
  "id": "GHSA-8vxv-2g8p-2249",
  "modified": "2022-05-24T21:33:15Z",
  "published": "2022-05-24T21:33:15Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/constantoine/totp-rs/security/advisories/GHSA-8vxv-2g8p-2249"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-29185"
    },
    {
      "type": "WEB",
      "url": "https://github.com/constantoine/totp-rs/issues/13"
    },
    {
      "type": "WEB",
      "url": "https://github.com/constantoine/totp-rs/commit/1f1e1a6fe722deb1656f483b1367ea4be978db5b"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/constantoine/totp-rs"
    },
    {
      "type": "WEB",
      "url": "https://github.com/constantoine/totp-rs/compare/v1.0...v1.1.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/constantoine/totp-rs/releases/tag/v1.1.0"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2022-0018.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Observable Timing Discrepancy in totp-rs"
}

CVE-2022-29185 (GCVE-0-2022-29185)

Vulnerability from cvelistv5 – Published: 2022-05-20 19:30 – Updated: 2025-04-23 18:24

Title

Observable Timing Discrepancy in totp-rs

Summary

totp-rs is a Rust library that permits the creation of 2FA authentification tokens per time-based one-time password (TOTP). Prior to version 1.1.0, token comparison was not constant time, and could theorically be used to guess value of an TOTP token, and thus reuse it in the same time window. The attacker would have to know the password beforehand nonetheless. Starting with patched version 1.1.0, the library uses constant-time comparison. There are currently no known workarounds.

Severity

4.2 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 14:07 UTC

CWE

CWE-208 - Observable Timing Discrepancy
CWE-203 - Observable Discrepancy

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/constantoine/totp-rs/security/…	x_refsource_CONFIRM
https://github.com/constantoine/totp-rs/issues/13	x_refsource_MISC
https://github.com/constantoine/totp-rs/releases/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
constantoine	totp-rs	Affected: <1.1.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T06:17:54.202Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/constantoine/totp-rs/security/advisories/GHSA-8vxv-2g8p-2249"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/constantoine/totp-rs/issues/13"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/constantoine/totp-rs/releases/tag/v1.1.0"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-29185",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T14:07:03.554858Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-23T18:24:00.911Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "totp-rs",
          "vendor": "constantoine",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c1.1.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "totp-rs is a Rust library that permits the creation of 2FA authentification tokens per time-based one-time password (TOTP). Prior to version 1.1.0, token comparison was not constant time, and could theorically be used to guess value of an TOTP token, and thus reuse it in the same time window. The attacker would have to know the password beforehand nonetheless. Starting with patched version 1.1.0, the library uses constant-time comparison. There are currently no known workarounds."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.2,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-208",
              "description": "CWE-208: Observable Timing Discrepancy",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-203",
              "description": "CWE-203: Observable Discrepancy",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-05-20T19:30:12.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/constantoine/totp-rs/security/advisories/GHSA-8vxv-2g8p-2249"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/constantoine/totp-rs/issues/13"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/constantoine/totp-rs/releases/tag/v1.1.0"
        }
      ],
      "source": {
        "advisory": "GHSA-8vxv-2g8p-2249",
        "discovery": "UNKNOWN"
      },
      "title": "Observable Timing Discrepancy in totp-rs",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2022-29185",
          "STATE": "PUBLIC",
          "TITLE": "Observable Timing Discrepancy in totp-rs"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "totp-rs",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c1.1.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "constantoine"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "totp-rs is a Rust library that permits the creation of 2FA authentification tokens per time-based one-time password (TOTP). Prior to version 1.1.0, token comparison was not constant time, and could theorically be used to guess value of an TOTP token, and thus reuse it in the same time window. The attacker would have to know the password beforehand nonetheless. Starting with patched version 1.1.0, the library uses constant-time comparison. There are currently no known workarounds."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.2,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-208: Observable Timing Discrepancy"
                }
              ]
            },
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-203: Observable Discrepancy"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/constantoine/totp-rs/security/advisories/GHSA-8vxv-2g8p-2249",
              "refsource": "CONFIRM",
              "url": "https://github.com/constantoine/totp-rs/security/advisories/GHSA-8vxv-2g8p-2249"
            },
            {
              "name": "https://github.com/constantoine/totp-rs/issues/13",
              "refsource": "MISC",
              "url": "https://github.com/constantoine/totp-rs/issues/13"
            },
            {
              "name": "https://github.com/constantoine/totp-rs/releases/tag/v1.1.0",
              "refsource": "MISC",
              "url": "https://github.com/constantoine/totp-rs/releases/tag/v1.1.0"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-8vxv-2g8p-2249",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
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    "datePublished": "2022-05-20T19:30:12.000Z",
    "dateReserved": "2022-04-13T00:00:00.000Z",
    "dateUpdated": "2025-04-23T18:24:00.911Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

rustsec-2022-0018

Vulnerability from osv_rustsec

Published

2022-05-09 12:00

Modified

2023-06-13 13:10

Summary

Timing attack

Details

Affecting versions did not compare tokens in constant time, which could make it possible for an attacker to guess the 2fa token of a user.

This has been fixed by using using the crate constant_time_eq for comparison.

Severity

4.2 (Medium)


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

References

URL

Type

	https://crates.io/crates/totp-rs	PACKAGE
	https://rustsec.org/advisories/RUSTSEC-2022-0018.html	ADVISORY
	https://github.com/constantoine/totp-rs/security/…	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "crypto-failure"
        ],
        "cvss": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N",
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [
            "totp_rs::TOTP::check"
          ],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "totp-rs",
        "purl": "pkg:cargo/totp-rs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "1.1.0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2022-29185",
    "GHSA-8vxv-2g8p-2249"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "Affecting versions did not compare tokens in constant time, which could make it possible for an attacker to guess the 2fa token of a user.\n\nThis has been fixed by using using the crate constant_time_eq for comparison.",
  "id": "RUSTSEC-2022-0018",
  "modified": "2023-06-13T13:10:24Z",
  "published": "2022-05-09T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/totp-rs"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2022-0018.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/constantoine/totp-rs/security/advisories/GHSA-8vxv-2g8p-2249"
    }
  ],
  "related": [],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Timing attack"
}

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.

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.

Action not permitted

GHSA-8VXV-2G8P-2249

Impact

Patches

Workarounds

For more information

CVE-2022-29185 (GCVE-0-2022-29185)

rustsec-2022-0018

Vulnerability from osv_rustsec

Tags

Sightings

Nomenclature

Related by attack behaviour