CVE-2021-20034
CRITICALCVSS 9.1/10EPSS 80.70%
Last modified
CVE-2021-20034 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path traversal checks and delete an arbitrary file potentially resulting in a reboot to factory default settings.. EPSS estimates a 80.70% chance of exploitation in the next 30 days.
Description
An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path traversal checks and delete an arbitrary file potentially resulting in a reboot to factory default settings.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Sonicwall | Sma 200 Firmware | <= 9.0.0.10-28sv |
| Sonicwall | Sma 200 Firmware | >= 10.2.0.0, <= 10.2.0.7-34sv |
| Sonicwall | Sma 200 Firmware | >= 10.2.1.0, <= 10.2.1.0-17sv |
| Sonicwall | Sma 210 Firmware | <= 9.0.0.10-28sv |
| Sonicwall | Sma 210 Firmware | >= 10.2.0.0, <= 10.2.0.7-34sv |
| Sonicwall | Sma 210 Firmware | >= 10.2.1.0, <= 10.2.1.0-17sv |
| Sonicwall | Sma 400 Firmware | <= 9.0.0.10-28sv |
| Sonicwall | Sma 400 Firmware | >= 10.2.0.0, <= 10.2.0.7-34sv |
| Sonicwall | Sma 400 Firmware | >= 10.2.1.0, <= 10.2.1.0-17sv |
| Sonicwall | Sma 410 Firmware | <= 9.0.0.10-28sv |
| Sonicwall | Sma 410 Firmware | >= 10.2.0.0, <= 10.2.0.7-34sv |
| Sonicwall | Sma 410 Firmware | >= 10.2.1.0, <= 10.2.1.0-17sv |
| Sonicwall | Sma 500v | <= 9.0.0.10-28sv |
| Sonicwall | Sma 500v | >= 10.2.0.0, <= 10.2.0.7-34sv |
| Sonicwall | Sma 500v | >= 10.2.1.0, <= 10.2.1.0-17sv |
References
- http://packetstormsecurity.com/files/164564/SonicWall-SMA-10.2.1.0-17sv-Password-Reset.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/164564/SonicWall-SMA-10.2.1.0-17sv-Password-Reset.htmlExploit, Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-20034?
An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path traversal checks and delete an arbitrary file potentially resulting in a reboot to factory default settings.
How severe is CVE-2021-20034?
CVE-2021-20034 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 80.70% probability of exploitation in the next 30 days.
How do I fix CVE-2021-20034?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-20027A buffer overflow vulnerability in SonicOS allows a remote a…7.5
- CVE-2021-20028Improper neutralization of a SQL Command leading to SQL Inje…9.8
- CVE-2021-2003Vulnerability in the Business Intelligence Enterprise Editio…5.4
- CVE-2021-20030SonicWall GMS is vulnerable to file path manipulation result…7.5
- CVE-2021-20031A Host Header Redirection vulnerability in SonicOS potential…6.1
- CVE-2021-20032SonicWall Analytics 2.5 On-Prem is vulnerable to Java Debug …9.8
- CVE-2021-20035Improper neutralization of special elements in the SMA100 ma…6.5
- CVE-2021-20037SonicWall Global VPN Client 4.10.5 installer (32-bit and 64-…7.8
- CVE-2021-20038A Stack-based buffer overflow vulnerability in SMA100 Apache…9.8
- CVE-2021-20039Improper neutralization of special elements in the SMA100 ma…8.8
- CVE-2021-2004Vulnerability in the Siebel Core - Server BizLogic Script pr…4.3
- CVE-2021-20040A relative path traversal vulnerability in the SMA100 upload…7.5
Are you affected by CVE-2021-20034?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST