Attacker Value
Unknown
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CVE-2021-20042
0
CVE ID
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CVE-2021-20042
(Last updated February 23, 2025) ▾
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Description
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.
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
9.8 Critical
Impact Score:
5.9
Exploitability Score:
3.9
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
General Information
Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
SonicWall SMA100 9.0.0.11-31sv and earlier
SonicWall SMA100 10.2.0.8-37sv and earlier
SonicWall SMA100 10.2.1.1-19sv and earlier
SonicWall SMA100 10.2.1.2-24sv and earlier
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Vendors
Products
- sma 200 firmware 10.2.0.8-37sv,
- sma 200 firmware 10.2.1.1-19sv,
- sma 200 firmware 9.0.0.11-31sv,
- sma 210 firmware 10.2.0.8-37sv,
- sma 210 firmware 10.2.1.1-19sv,
- sma 210 firmware 9.0.0.11-31sv,
- sma 400 firmware 10.2.0.8-37sv,
- sma 400 firmware 10.2.1.1-19sv,
- sma 400 firmware 9.0.0.11-31sv,
- sma 410 firmware 10.2.0.8-37sv,
- sma 410 firmware 10.2.1.1-19sv,
- sma 410 firmware 9.0.0.11-31sv,
- sma 500v firmware 10.2.0.8-37sv,
- sma 500v firmware 10.2.1.1-19sv,
- sma 500v firmware 9.0.0.11-31sv
Weaknesses
References
Additional Info
Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Rapid7
Technical Analysis
Report as Emergent Threat Response
Report as Zero-day Exploit
Report as Exploited in the Wild
CVE ID
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