SQL injection in SonicWall SMA100

1) SQL injection

EUVDB-ID: #VU49936

Risk: Critical

CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2021-20016

CWE-ID: CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote non-authenticated attacker can send a specially crafted HTTP request to the SSL-VPN appliance and execute arbitrary SQL commands within the application database.

Successful exploitation of this vulnerability may allow a remote attacker to access usernames, passwords and other session related information.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Vulnerable software versions

SMA 100: - - 10.2.0.3-24sv

NetExtender for Linux: 10.2.816 - 10.2.817

NetExtender for Windows: 10.2.0.300 - 10.2.302

CPE2.3

• cpe:2.3:h:sonicwall:sma_100:10.2.0.2-20sv:*:*:*:*:*:*:
• cpe:2.3:h:sonicwall:sma_100:10.2.0.3-24sv:*:*:*:*:*:*:
• cpe:2.3:a:sonicwall:netextender_for_linux:10.2.816:*:*:*:*:*:*:
• cpe:2.3:a:sonicwall:netextender_for_linux:10.2.817:*:*:*:*:*:*:
• cpe:2.3:a:sonicwall:netextender_for_windows:10.2.0.300:*:*:*:*:*:*:
• cpe:2.3:a:sonicwall:netextender_for_windows:10.2.302:*:*:*:*:*:*:

External links

http://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001
http://www.sonicwall.com/support/product-notification/urgent-patch-available-for-sma-100-series-10-x-firmware-zero-day-vulnerability-updated-feb-3-2-p-m-cst/210122173415410/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.