Medium severity · published Sep 30, 2020
CVE-2020-5132
SonicWall SSL-VPN products and SonicWall firewall SSL-VPN feature misconfiguration leads to possible DNS flaw known as domain name collision vulnerability
5.3
CVSS
1%
EPSS
No
On KEV
Description
SonicWall SSL-VPN products and SonicWall firewall SSL-VPN feature misconfiguration leads to possible DNS flaw known as domain name collision vulnerability. When the users publicly display their organization’s internal domain names in the SSL-VPN authentication page, an attacker with knowledge of internal domain names can potentially take advantage of this vulnerability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SF
Sma100 Firmware · Sonicwall
10.2.0.2-20sv; 12.4.0-2223 · source: NVD
SO
Sonicos · Sonicwall
6.5.4.6-79n · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-5132
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-5132
Vendor Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2020-0006
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