Multiple vulnerabilities in SonicWall SMA 100



Published: 2021-12-21
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-20049
CVE-2021-20050
CWE-ID CWE-204
CWE-284
Exploitation vector Network
Public exploit N/A
Vulnerable software
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SMA 100
Hardware solutions / Security hardware applicances

Vendor SonicWall

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Observable Response Discrepancy

EUVDB-ID: #VU59079

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-20049

CWE-ID: CWE-204 - Observable Response Discrepancy

Exploit availability: No

Description

The vulnerability allows a remote attacker to enumerate user logins.

The vulnerability exists in the SonicWall SMA100 password change API due to different responses sent for exiting and non-existing users. A remote attacker can enumerate usernames.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SMA 100: 10.2.0.2-20sv - 10.2.1.2-24sv


CPE2.3 External links

http://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0030

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?

No. We are not aware of malware exploiting this vulnerability.

2) Improper access control

EUVDB-ID: #VU59078

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-20050

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions to multiple management APIs. A remote non-authenticated attacker can obtain configuration meta-data.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SMA 100: 10.2.0.2-20sv - 10.2.1.2-24sv


CPE2.3 External links

http://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0031

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?

No. We are not aware of malware exploiting this vulnerability.



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