CVE-2020-3126 (GCVE-0-2020-3126)

Vulnerability from cvelistv5 – Published: 2020-04-13 16:40 – Updated: 2024-11-15 17:32
VLAI?
Summary
vulnerability within the Multimedia Viewer feature of Cisco Webex Meetings could allow an authenticated, remote attacker to bypass security protections. The vulnerability is due to missing security warning dialog boxes when a room host views shared multimedia files. An authenticated, remote attacker could exploit this vulnerability by using the host role to share files within the Multimedia sharing feature and convincing a former room host to view that file. A warning dialog normally appears cautioning users before the file is displayed; however, the former host would not see that warning dialog, and any shared multimedia would be rendered within the user's browser. The attacker could leverage this behavior to conduct additional attacks by including malicious files within a targeted room host's browser window.
Severity ?
3 (Low)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N
CWE
  • CWE-284 - Improper Access Control
Assigner
References
https://quickview.cloudapps.cisco.com/quickview/b… vendor-advisoryx_refsource_CISCO
Impacted products
Vendor Product Version
Cisco Cisco Webex Meetings Multimedia Viewer Affected: T39.3
Create a notification for this product.
Credits
Cisco would like to thank Alexandros Zacharis of European GNSS Agency (GSA) for reporting this vulnerability.
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The attacker could leverage this behavior to conduct additional attacks by including malicious files within a targeted room host\u0027s browser window.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-284\", \"description\": \"CWE-284 Improper Access Control\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2020-04-13T16:40:12\"}, \"x_legacyV4Record\": {\"credit\": [{\"lang\": \"eng\", \"value\": \"Cisco would like to thank Alexandros Zacharis of European GNSS Agency (GSA) for reporting this vulnerability.\"}], \"impact\": {\"cvss\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"LOW\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, \"source\": {\"defect\": [\"CSCvs24436\"], \"advisory\": \"CSCvs24436\", \"discovery\": \"EXTERNAL\"}, \"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"version\": {\"version_data\": [{\"version_value\": \"T39.3\", \"version_affected\": \"=\"}]}, \"product_name\": \"Cisco Webex Meetings Multimedia Viewer\"}]}, \"vendor_name\": \"Cisco\"}]}}, \"exploit\": [{\"lang\": \"en\", \"value\": \"The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.\"}], \"data_type\": \"CVE\", \"generator\": {\"engine\": \"Vulnogram 0.0.9\"}, \"references\": {\"reference_data\": [{\"url\": \"https://quickview.cloudapps.cisco.com/quickview/bug/CSCvs24436\", \"name\": \"20200413 Cisco Webex Meetings Multimedia Viewer Vulnerability\", \"refsource\": \"CISCO\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"vulnerability within the Multimedia Viewer feature of Cisco Webex Meetings could allow an authenticated, remote attacker to bypass security protections. 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The attacker could leverage this behavior to conduct additional attacks by including malicious files within a targeted room host\u0027s browser window.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"CWE-284 Improper Access Control\"}]}]}, \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-2020-3126\", \"STATE\": \"PUBLIC\", \"TITLE\": \"Cisco Webex Meetings Multimedia Viewer Vulnerability\", \"ASSIGNER\": \"psirt@cisco.com\", \"DATE_PUBLIC\": \"2020-04-13T16:00:00.000Z\"}}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2020-3126\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-15T17:32:29.187Z\", \"dateReserved\": \"2019-12-12T00:00:00\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2020-04-13T16:40:12.767786Z\", \"assignerShortName\": \"cisco\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

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.