Sma 200 Firmware
CVE-2021-20042
CRITICAL
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
An unauthenticated remote attacker can use SMA 100 as an unintended proxy or intermediary undetectable proxy to bypass firewall rules. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.
AnalysisAI
An unauthenticated remote attacker can use SMA 100 as an unintended proxy or intermediary undetectable proxy to bypass firewall rules. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified under CWE-441. An unauthenticated remote attacker can use SMA 100 as an unintended proxy or intermediary undetectable proxy to bypass firewall rules. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances. Affected products include: Sonicwall Sma 200 Firmware, Sonicwall Sma 210 Firmware, Sonicwall Sma 410 Firmware, Sonicwall Sma 400 Firmware, Sonicwall Sma 500V Firmware.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
More in Sma 200 Firmware
View allImproper neutralization of special elements in the SMA100 management interface '/cgi-bin/viewcert' POST http method allo
A Stack-based buffer overflow vulnerability in SMA100 Apache httpd server's mod_cgi module environment variables allows
An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path traversal
A vulnerability in SMA100 allows a remote authenticated attacker with SSLVPN user privileges to bypass the path traversa
Improper neutralization of Special Elements leading to OS Command Injection vulnerability impacting end-of-life Secure R
A buffer overflow vulnerability in SMA100 sonicfiles RAC_COPY_TO (RacNumber 36) method allows a remote unauthenticated a
A SQL-Injection vulnerability in the SonicWall SSLVPN SMA100 product allows a remote unauthenticated attacker to perform
A vulnerability in SMA100 allows a remote authenticated attacker with SSLVPN user privileges can inject a path traversal
Improper authentication in the SMA100 SSL-VPN virtual office portal allows a remote authenticated attacker to create an
A Heap-based Buffer Overflow vulnerability in the SonicWall SMA100 appliance allows a remote authenticated attacker to c
A post-authentication remote command injection vulnerability in SonicWall SMA100 allows a remote authenticated attacker
A Heap-based buffer overflow vulnerability in SonicWall SMA100 getBookmarks method allows a remote authenticated attacke
Same technique Authentication Bypass
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External POC / Exploit Code
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