Vulnerability-Lookup

GHSA-FMPQ-8RP4-F234

Vulnerability from github – Published: 2022-05-24 17:01 – Updated: 2022-05-24 17:01

Details

An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. The firmware hashes and encrypts passwords using a hardcoded cryptographic key in sal_util_str_encrypt() in libsal.so.0.0. The parameters (salt, IV, and key data) are used to encrypt and decrypt all passwords using AES256 in CBC mode. With the parameters known, all previously encrypted passwords can be decrypted. This includes the passwords that are part of configuration backups or otherwise embedded as part of the firmware.

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{
  "affected": [],
  "aliases": [
    "CVE-2019-15802"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-11-14T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered on Zyxel GS1900 devices with firmware before 2.50(AAHH.0)C0. The firmware hashes and encrypts passwords using a hardcoded cryptographic key in sal_util_str_encrypt() in libsal.so.0.0. The parameters (salt, IV, and key data) are used to encrypt and decrypt all passwords using AES256 in CBC mode. With the parameters known, all previously encrypted passwords can be decrypted. This includes the passwords that are part of configuration backups or otherwise embedded as part of the firmware.",
  "id": "GHSA-fmpq-8rp4-f234",
  "modified": "2022-05-24T17:01:18Z",
  "published": "2022-05-24T17:01:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-15802"
    },
    {
      "type": "WEB",
      "url": "https://jasper.la/exploring-zyxel-gs1900-firmware-with-ghidra.html"
    },
    {
      "type": "WEB",
      "url": "https://www.zyxel.com/support/gs1900-switch-vulnerabilities.shtml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2019-15802 (GCVE-0-2019-15802)

Vulnerability from cvelistv5 – Published: 2019-11-14 20:16 – Updated: 2024-08-05 00:56

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2290 records in the last 180 days details

References

2 references

URL	Tags
https://jasper.la/exploring-zyxel-gs1900-firmware…	x_refsource_MISC
https://www.zyxel.com/support/gs1900-switch-vulne…	x_refsource_CONFIRM

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        "providerMetadata": {
          "dateUpdated": "2024-08-05T00:56:22.467Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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            "tags": [
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              "x_transferred"
            ],
            "url": "https://jasper.la/exploring-zyxel-gs1900-firmware-with-ghidra.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
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            ],
            "url": "https://www.zyxel.com/support/gs1900-switch-vulnerabilities.shtml"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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      "descriptions": [
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        }
      ],
      "problemTypes": [
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      },
      "references": [
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        },
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            "x_refsource_CONFIRM"
          ],
          "url": "https://www.zyxel.com/support/gs1900-switch-vulnerabilities.shtml"
        }
      ],
      "x_legacyV4Record": {
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          "ID": "CVE-2019-15802",
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            },
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  "cveMetadata": {
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    "datePublished": "2019-11-14T20:16:03.000Z",
    "dateReserved": "2019-08-29T00:00:00.000Z",
    "dateUpdated": "2024-08-05T00:56:22.467Z",
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  },
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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.

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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GHSA-FMPQ-8RP4-F234

CVE-2019-15802 (GCVE-0-2019-15802)

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