Multiple vulnerabilities in SonicWall SMA 100



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
 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

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

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

https://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

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

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

https://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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