CVE-2021-20016 (GCVE-0-2021-20016)

Vulnerability from cvelistv5 – Published: 2021-02-03 20:35 – Updated: 2025-10-21 23:35
VLAI? CISA
Summary
A SQL-Injection vulnerability in the SonicWall SSLVPN SMA100 product allows a remote unauthenticated attacker to perform SQL query to access username password and other session related information. This vulnerability impacts SMA100 build version 10.x.
Severity ?
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Assigner
References
Impacted products
Vendor Product Version
SonicWall SonicWall SMA100 Affected: SMA100 build version 10.x
Create a notification for this product.
CISA Known Exploited Vulnerability
Data from the CISA Known Exploited Vulnerabilities Catalog

Date added: 2021-11-03

Due date: 2021-11-17

Required action: Apply updates per vendor instructions.

Used in ransomware: Known

Notes: https://nvd.nist.gov/vuln/detail/CVE-2021-20016

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      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001\", \"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T17:30:07.417Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 9.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-20016\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-02-06T19:54:21.435978Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2021-11-03\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20016\"}}}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2021-11-03T00:00:00+00:00\", \"value\": \"CVE-2021-20016 added to CISA KEV\"}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-06T19:53:56.705Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"SonicWall\", \"product\": \"SonicWall SMA100\", \"versions\": [{\"status\": \"affected\", \"version\": \"SMA100 build version 10.x\"}]}], \"references\": [{\"url\": \"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001\", \"tags\": [\"x_refsource_CONFIRM\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A SQL-Injection vulnerability in the SonicWall SSLVPN SMA100 product allows a remote unauthenticated attacker to perform SQL query to access username password and other session related information. This vulnerability impacts SMA100 build version 10.x.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-89\", \"description\": \"CWE-89: Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"44b2ff79-1416-4492-88bb-ed0da00c7315\", \"shortName\": \"sonicwall\", \"dateUpdated\": \"2021-02-03T20:35:14.000Z\"}, \"x_legacyV4Record\": {\"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"version\": {\"version_data\": [{\"version_value\": \"SMA100 build version 10.x\"}]}, \"product_name\": \"SonicWall SMA100\"}]}, \"vendor_name\": \"SonicWall\"}]}}, \"data_type\": \"CVE\", \"references\": {\"reference_data\": [{\"url\": \"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001\", \"name\": \"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001\", \"refsource\": \"CONFIRM\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"A SQL-Injection vulnerability in the SonicWall SSLVPN SMA100 product allows a remote unauthenticated attacker to perform SQL query to access username password and other session related information. This vulnerability impacts SMA100 build version 10.x.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"CWE-89: Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)\"}]}]}, \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-2021-20016\", \"STATE\": \"PUBLIC\", \"ASSIGNER\": \"PSIRT@sonicwall.com\"}}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-20016\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T19:54:12.691Z\", \"dateReserved\": \"2020-12-17T00:00:00.000Z\", \"assignerOrgId\": \"44b2ff79-1416-4492-88bb-ed0da00c7315\", \"datePublished\": \"2021-02-03T20:35:14.000Z\", \"assignerShortName\": \"sonicwall\"}",
      "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.