Attacker Value
Unknown
0
CVE-2021-20041
0
CVE ID
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CVE-2021-20041
(Last updated October 07, 2023) ▾
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Command and Control
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Credential Access
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Defense Evasion
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Execution
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Exfiltration
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Description
An unauthenticated and remote adversary can consume all of the device’s CPU due to crafted HTTP requests sent to SMA100 /fileshare/sonicfiles/sonicfiles resulting in a loop with unreachable exit condition. 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:
7.5 High
Impact Score:
3.6
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):
None
Integrity (I):
None
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
- sonicwall
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
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 Exploited in the Wild
CVE ID
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