Path Traversal in Sonicwall Sma_200
CVE-2021-20040
A relative path traversal vulnerability in the SMA100 upload funtion allows a remote unauthenticated attacker to upload crafted web pages or files as a 'nobody' user. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.
EPSS: 0.258 (97.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Sonicwall Sma_200
- Sonicwall Sma_200_firmware — versions 10.2.0.8-37sv, 10.2.1.1-19sv
- Sonicwall Sma_210
- Sonicwall Sma_210_firmware — versions 10.2.0.8-37sv, 10.2.1.1-19sv
- Sonicwall Sma_400
- Sonicwall Sma_400_firmware — versions 10.2.0.8-37sv, 10.2.1.1-19sv
- Sonicwall Sma_410
- Sonicwall Sma_410_firmware — versions 10.2.0.8-37sv, 10.2.1.1-19sv
- Sonicwall Sma_500v
- Sonicwall Sma_500v_firmware — versions 10.2.0.8-37sv, 10.2.1.1-19sv
Weakness classification (CWE)
References
- PSIRT@sonicwall.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-20040?
- CVE-2021-20040 is a high-severity vulnerability in Sonicwall Sma_200, classified under Relative Path Traversal. CVSS score: 7.5/10. Published 2021-12-08.
- How severe is CVE-2021-20040?
- High severity. CVSS v3 base score is 7.5 out of 10.