by Kastro
Paper/Archive/CVE-2021-20038

CVE-2021-20038

SonicWall SonicWall SMA100 — SonicWall SMA 100 Appliances Stack-Based Buffer Overflow Vulnerability

KEV · due 11 Febransomware useEPSS 100%public exploitSSVC actCVSS 9.8
critical.is priorityof 100
99
CVSS 9.8 (ADP)9.8 / 10 × 3029.4In CISA KEV+3030.0EPSS percentile 100.01.000 × 2020.0Exploit: SSVC active+1010.0SSVC exploitation: active+1010.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
SonicWall SMA10010.2.0.8-37sv and earlier–CNA
SonicWall SMA10010.2.1.1-19sv and earlier–CNA
SonicWall SMA10010.2.1.2-24sv and earlier–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: active · Automatable: yes · Technical impact: total

References

refpsirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026refgithub.com/jbaines-r7/badbloodrefrapid7.com/blog/post/2022/01/11/cve-2021-20038-42-sonicwall-sma-100-multiple-vulnerabilities-fixed-2refcisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20038kevcisa.gov/known-exploited-vulnerabilities-catalog