CVE-2021-20038
critical · 9.8Actively exploitedOn the CISA Known Exploited Vulnerabilities catalog
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Added 2022-01-28Remediation due 2022-02-11
A public exploit / detection template exists
Weaponised detection is publicly available, which meaningfully raises real-world risk regardless of CVSS. nuclei-templates →
A Stack-based buffer overflow vulnerability in SMA100 Apache httpd server's mod_cgi module environment variables allows a remote unauthenticated attacker to potentially execute code as a 'nobody' user in the appliance. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances firmware 10.2.0.8-37sv, 10.2.1.1-19sv, 10.2.1.2-24sv and earlier versions.
9.8
CVSS
99.9%
EPSS (exploit prob.)
100th
EPSS percentile
2021-12-08
Published
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-121CWE-787
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| sonicwall | sma_200_firmware | 10.2.0.8-37sv |
| sonicwall | sma_200_firmware | 10.2.1.1-19sv |
| sonicwall | sma_200_firmware | 10.2.1.2-24sv |
| sonicwall | sma_200 | all versions |
| sonicwall | sma_210_firmware | 10.2.0.8-37sv |
| sonicwall | sma_210_firmware | 10.2.1.1-19sv |
| sonicwall | sma_210_firmware | 10.2.1.2-24sv |
| sonicwall | sma_210 | all versions |
| sonicwall | sma_410_firmware | 10.2.0.8-37sv |
| sonicwall | sma_410_firmware | 10.2.1.1-19sv |
| sonicwall | sma_410_firmware | 10.2.1.2-24sv |
| sonicwall | sma_410 | all versions |
| sonicwall | sma_400_firmware | 10.2.0.8-37sv |
| sonicwall | sma_400_firmware | 10.2.1.1-19sv |
| sonicwall | sma_400_firmware | 10.2.1.2-24sv |
| sonicwall | sma_400 | all versions |
| sonicwall | sma_500v_firmware | 10.2.0.8-37sv |
| sonicwall | sma_500v_firmware | 10.2.1.1-19sv |
| sonicwall | sma_500v_firmware | 10.2.1.2-24sv |
| sonicwall | sma_500v | all versions |
Check a specific version with /api/v1/cve/match.
References
- https://github.com/jbaines-r7/badblood
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026
- https://www.rapid7.com/blog/post/2022/01/11/cve-2021-20038-42-sonicwall-sma-100-multiple-vulnerabilities-fixed-2/
- https://github.com/jbaines-r7/badblood
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026
- https://www.rapid7.com/blog/post/2022/01/11/cve-2021-20038-42-sonicwall-sma-100-multiple-vulnerabilities-fixed-2/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20038
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2021-20038