Vulnerability-Lookup

FKIE_CVE-2017-16857

Vulnerability from fkie_nvd - Published: 2017-12-05 16:29 - Updated: 2026-05-13 00:24

Severity

8.5 (High) - CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Summary

It is possible to bypass the bitbucket auto-unapprove plugin via minimal brute-force because it is relying on asynchronous events on the back-end. This allows an attacker to merge any code into unsuspecting repositories. This affects all versions of the auto-unapprove plugin, however since the auto-unapprove plugin is not bundled with Bitbucket Server it does not affect any particular version of Bitbucket.

References

	URL	Tags
	security@atlassian.com	https://jira.atlassian.com/browse/BSERV-10439	Issue Tracking, Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://jira.atlassian.com/browse/BSERV-10439	Issue Tracking, Vendor Advisory

Impacted products

Vendor	Product	Version
atlassian	bitbucket_auto_unapprove_plugin	1.0.0
atlassian	bitbucket_auto_unapprove_plugin	1.0.0
atlassian	bitbucket_auto_unapprove_plugin	1.1.0
atlassian	bitbucket_auto_unapprove_plugin	1.2.0
atlassian	bitbucket_auto_unapprove_plugin	2.0.1
atlassian	bitbucket_auto_unapprove_plugin	2.0.2
atlassian	bitbucket_auto_unapprove_plugin	2.0.4
atlassian	bitbucket_auto_unapprove_plugin	2.1.1
atlassian	bitbucket_auto_unapprove_plugin	2.1.3
atlassian	bitbucket_auto_unapprove_plugin	2.2.0
atlassian	bitbucket_auto_unapprove_plugin	3.0.0

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:1.0.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "97911FE2-5F86-4BE3-AB28-9816EB9CAEDA",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:1.0.0:beta1:*:*:*:*:*:*",
              "matchCriteriaId": "53F394B8-F666-4D37-9AC9-7F5397A405E1",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "6786304B-5EC4-4EA8-88AB-7DC3518DACB2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:1.2.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "FA4C63A4-4315-4083-902D-4C5AA056AE9B",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.0.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "8830EDAD-E6B0-4A27-A455-97E14374AF4F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.0.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "B84B6B9F-E2F9-44E9-AA13-B59F975991A0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.0.4:*:*:*:*:*:*:*",
              "matchCriteriaId": "607F4C07-6457-4D97-A9AB-1D0EF98B035C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.1.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "16A0B68D-5682-40A8-9755-D85902BCDD63",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.1.3:*:*:*:*:*:*:*",
              "matchCriteriaId": "1035851A-D3DF-4A66-B807-1BF85BDF4260",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.2.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "C7E4D548-247D-41D7-AEEC-606C3A1E0AA7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:3.0.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "35951C11-94DF-4620-9007-D5F3665502EE",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "It is possible to bypass the bitbucket auto-unapprove plugin via minimal brute-force because it is relying on asynchronous events on the back-end. This allows an attacker to merge any code into unsuspecting repositories. This affects all versions of the auto-unapprove plugin, however since the auto-unapprove plugin is not bundled with Bitbucket Server it does not affect any particular version of Bitbucket."
    },
    {
      "lang": "es",
      "value": "Es posible omitir el plugin bitbucket auto-unapprove mediante fuerza bruta m\u00ednima, ya que depende de eventos as\u00edncronos en el back end. Esto permite que un atacante combine cualquier c\u00f3digo en repositorios no planeados. Esto afecta a todas las versiones del plugin auto-unapprove; sin embargo, debido a que el plugin auto-unapprove no est\u00e1 agrupado con Bitbucket Server, no afecta a ninguna versi\u00f3n en particular de Bitbucket."
    }
  ],
  "id": "CVE-2017-16857",
  "lastModified": "2026-05-13T00:24:29.033",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 6.8,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 6.0,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2017-12-05T16:29:00.453",
  "references": [
    {
      "source": "security@atlassian.com",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "url": "https://jira.atlassian.com/browse/BSERV-10439"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "url": "https://jira.atlassian.com/browse/BSERV-10439"
    }
  ],
  "sourceIdentifier": "security@atlassian.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-362"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2017-16857 (GCVE-0-2017-16857)

Vulnerability from cvelistv5 – Published: 2017-12-05 16:00 – Updated: 2024-09-17 02:01

Summary

Severity

No CVSS data available.

CWE

Brute Force Attack

Assigner

atlassian

References

1 reference

URL	Tags
https://jira.atlassian.com/browse/BSERV-10439	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Atlassian	Auto-Unapprove Plugin (for Bitbucket Server)	Affected: All versions prior to version 3.0.1

Date Public

2017-12-05 00:00

Show details on NVD website

JSON

To clipboard

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            ],
            "url": "https://jira.atlassian.com/browse/BSERV-10439"
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        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "product": "Auto-Unapprove Plugin (for Bitbucket Server)",
          "vendor": "Atlassian",
          "versions": [
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        }
      ],
      "problemTypes": [
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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.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2017-16857

CVE-2017-16857 (GCVE-0-2017-16857)

Tags

Sightings

Nomenclature