Vulnerability-Lookup

GHSA-CFR2-HJC5-VFVG

Vulnerability from github – Published: 2022-05-13 01:42 – Updated: 2022-05-13 01:42

Details

An issue was discovered in heinekingmedia StashCat through 1.7.5 for Android, through 0.0.80w for Web, and through 0.0.86 for Desktop. It uses RSA to exchange a secret for symmetric encryption of messages. However, the private RSA key is not only stored on the client but transmitted to the backend, too. Moreover, the key to decrypt the private key is composed of the first 32 bytes of the SHA-512 hash of the user password. But this hash is stored on the backend, too. Therefore, everyone with access to the backend database can read the transmitted secret for symmetric encryption, hence can read the communication.

Severity

6.5 (Medium)


                  
                    CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2017-11136"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-08-01T14:29:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in heinekingmedia StashCat through 1.7.5 for Android, through 0.0.80w for Web, and through 0.0.86 for Desktop. It uses RSA to exchange a secret for symmetric encryption of messages. However, the private RSA key is not only stored on the client but transmitted to the backend, too. Moreover, the key to decrypt the private key is composed of the first 32 bytes of the SHA-512 hash of the user password. But this hash is stored on the backend, too. Therefore, everyone with access to the backend database can read the transmitted secret for symmetric encryption, hence can read the communication.",
  "id": "GHSA-cfr2-hjc5-vfvg",
  "modified": "2022-05-13T01:42:09Z",
  "published": "2022-05-13T01:42:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-11136"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2017/Jul/90"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2017-11136 (GCVE-0-2017-11136)

Vulnerability from cvelistv5 – Published: 2017-08-01 14:00 – Updated: 2024-08-05 17:57

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

1 reference

URL	Tags
http://seclists.org/fulldisclosure/2017/Jul/90	x_refsource_MISC

Date Public

2017-08-01 00:00

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{
  "containers": {
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        "providerMetadata": {
          "dateUpdated": "2024-08-05T17:57:58.103Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          {
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              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2017/Jul/90"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
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            }
          ]
        }
      ],
      "datePublic": "2017-08-01T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in heinekingmedia StashCat through 1.7.5 for Android, through 0.0.80w for Web, and through 0.0.86 for Desktop. It uses RSA to exchange a secret for symmetric encryption of messages. However, the private RSA key is not only stored on the client but transmitted to the backend, too. Moreover, the key to decrypt the private key is composed of the first 32 bytes of the SHA-512 hash of the user password. But this hash is stored on the backend, too. Therefore, everyone with access to the backend database can read the transmitted secret for symmetric encryption, hence can read the communication."
        }
      ],
      "problemTypes": [
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              "lang": "en",
              "type": "text"
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      "providerMetadata": {
        "dateUpdated": "2017-08-01T14:57:01.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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      "references": [
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          "tags": [
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          "ID": "CVE-2017-11136",
          "STATE": "PUBLIC"
        },
        "affects": {
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  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Action not permitted

GHSA-CFR2-HJC5-VFVG

CVE-2017-11136 (GCVE-0-2017-11136)

Tags

Sightings

Nomenclature