fkie_cve-2021-20038
Vulnerability from fkie_nvd
Published
2021-12-08 10:15
Modified
2025-10-31 17:13
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
| URL | Tags | ||
|---|---|---|---|
| PSIRT@sonicwall.com | https://github.com/jbaines-r7/badblood | Exploit, Third Party Advisory | |
| PSIRT@sonicwall.com | https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026 | Vendor Advisory | |
| PSIRT@sonicwall.com | https://www.rapid7.com/blog/post/2022/01/11/cve-2021-20038-42-sonicwall-sma-100-multiple-vulnerabilities-fixed-2/ | Exploit, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://github.com/jbaines-r7/badblood | Exploit, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026 | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.rapid7.com/blog/post/2022/01/11/cve-2021-20038-42-sonicwall-sma-100-multiple-vulnerabilities-fixed-2/ | Exploit, Third Party Advisory | |
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20038 | US Government Resource |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| 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 | - | |
| 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 | - | |
| 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 | - | |
| 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 | - | |
| 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 | - |
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"cisaExploitAdd": "2022-01-28",
"cisaRequiredAction": "Apply updates per vendor instructions.",
"cisaVulnerabilityName": "SonicWall SMA 100 Appliances Stack-Based Buffer Overflow Vulnerability",
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A Stack-based buffer overflow vulnerability in SMA100 Apache httpd server\u0027s mod_cgi module environment variables allows a remote unauthenticated attacker to potentially execute code as a \u0027nobody\u0027 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."
},
{
"lang": "es",
"value": "Una vulnerabilidad de desbordamiento de b\u00fafer en la regi\u00f3n Stack de la memoria en las variables de entorno del m\u00f3dulo mod_cgi del servidor httpd de SMA100 permite a un atacante remoto no autenticado ejecutar potencialmente c\u00f3digo como usuario \"nobody\" en el dispositivo. Esta vulnerabilidad afecta a los dispositivos SMA 200, 210, 400, 410 y 500v con firmware versiones 10.2.0.8-37sv, 10.2.1.1-19sv, 10.2.1.2-24sv y versiones anteriores"
}
],
"id": "CVE-2021-20038",
"lastModified": "2025-10-31T17:13:16.787",
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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