GSD-2021-28373

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
The auth_internal plugin in Tiny Tiny RSS (aka tt-rss) before 2021-03-12 allows an attacker to log in via the OTP code without a valid password. NOTE: this issue only affected the git master branch for a short time. However, all end users are explicitly directed to use the git master branch in production. Semantic version numbers such as 21.03 appear to exist, but are automatically generated from the year and month. They are not releases.
Aliases
Aliases
CVE-2021-28373
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{
  "GSD": {
    "alias": "CVE-2021-28373",
    "description": "The auth_internal plugin in Tiny Tiny RSS (aka tt-rss) before 2021-03-12 allows an attacker to log in via the OTP code without a valid password. NOTE: this issue only affected the git master branch for a short time. However, all end users are explicitly directed to use the git master branch in production. Semantic version numbers such as 21.03 appear to exist, but are automatically generated from the year and month. They are not releases.",
    "id": "GSD-2021-28373",
    "references": [
      "https://security.archlinux.org/CVE-2021-28373"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-28373"
      ],
      "details": "The auth_internal plugin in Tiny Tiny RSS (aka tt-rss) before 2021-03-12 allows an attacker to log in via the OTP code without a valid password. NOTE: this issue only affected the git master branch for a short time. However, all end users are explicitly directed to use the git master branch in production. Semantic version numbers such as 21.03 appear to exist, but are automatically generated from the year and month. They are not releases.",
      "id": "GSD-2021-28373",
      "modified": "2023-12-13T01:23:28.825942Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2021-28373",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
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              "vendor_name": "n/a"
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          }
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        "reference_data": [
          {
            "name": "https://community.tt-rss.org/t/check-password-not-called-if-otp-is-enabled-update-asap-if-youre-using-2fa/4502",
            "refsource": "MISC",
            "url": "https://community.tt-rss.org/t/check-password-not-called-if-otp-is-enabled-update-asap-if-youre-using-2fa/4502"
          },
          {
            "name": "https://git.tt-rss.org/fox/tt-rss/commit/4949e1a59059d9e72ba7a98f783cec312c06c6d2",
            "refsource": "MISC",
            "url": "https://git.tt-rss.org/fox/tt-rss/commit/4949e1a59059d9e72ba7a98f783cec312c06c6d2"
          }
        ]
      }
    },
    "nvd.nist.gov": {
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        "nodes": [
          {
            "children": [],
            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:tt-rss:tiny_tiny_rss:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2021-03-12",
                "vulnerable": true
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        "description": {
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              "lang": "en",
              "value": "The auth_internal plugin in Tiny Tiny RSS (aka tt-rss) before 2021-03-12 allows an attacker to log in via the OTP code without a valid password. NOTE: this issue only affected the git master branch for a short time. However, all end users are explicitly directed to use the git master branch in production. Semantic version numbers such as 21.03 appear to exist, but are automatically generated from the year and month. They are not releases."
            }
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        },
        "problemtype": {
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                  "value": "CWE-863"
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://community.tt-rss.org/t/check-password-not-called-if-otp-is-enabled-update-asap-if-youre-using-2fa/4502",
              "refsource": "MISC",
              "tags": [
                "Issue Tracking",
                "Patch",
                "Vendor Advisory"
              ],
              "url": "https://community.tt-rss.org/t/check-password-not-called-if-otp-is-enabled-update-asap-if-youre-using-2fa/4502"
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            }
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2021-03-18T16:33Z",
      "publishedDate": "2021-03-13T21:15Z"
    }
  }
}


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  • 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.
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  • 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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