VulnerabilityAnalyzed
CVE-2021-20016
SonicWall SSLVPN SMA100 SQL Injection Vulnerability
KEVCRITICAL 9.8EPSS 40.0%
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 17 November 2021). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 40.04% probability · 99th percentile
- CISA KEV
- Listed 3 November 2021 · due 17 November 2021 · used in ransomware campaigns
- Weakness
- CWE-89
- Affected
- sonicwall/sma 100 firmware · sonicwall/sma 200 firmware · sonicwall/sma 210 firmware · sonicwall/sma 400 firmware · sonicwall/sma 410 firmware · sonicwall/sma 500v
- Source
- PSIRT@sonicwall.com
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2021-20016
References
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001Mitigation, Vendor Advisory
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001Mitigation, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20016US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.