CVE-2020-5143

MEDIUMCVSS 5.3/10EPSS 1.57%

Last modified

CVE-2020-5143 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. SonicOS SSLVPN login page allows a remote unauthenticated attacker to perform firewall management administrator username enumeration based on the server responses. This vulnerability affected SonicOS Gen 5 version 5.9.1.7, 5.9.1.13, Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version SonicOS 7.0.0.0.. EPSS estimates a 1.57% chance of exploitation in the next 30 days.

Description

SonicOS SSLVPN login page allows a remote unauthenticated attacker to perform firewall management administrator username enumeration based on the server responses. This vulnerability affected SonicOS Gen 5 version 5.9.1.7, 5.9.1.13, Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version SonicOS 7.0.0.0.

Metrics

CVSS 3.1
5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability
1.57%

72.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
SonicwallSonicos<= 5.9.1.13
SonicwallSonicos>= 6.0.0.0, <= 6.0.5.3
SonicwallSonicos>= 6.5.0.0, <= 6.5.1.11
SonicwallSonicos>= 6.5.4.0, <= 6.5.4.7
SonicwallSonicos7.0.0.0
SonicwallSonicosv<= 6.5.4.4

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-5143?
SonicOS SSLVPN login page allows a remote unauthenticated attacker to perform firewall management administrator username enumeration based on the server responses. This vulnerability affected SonicOS Gen 5 version 5.9.1.7, 5.9.1.13, Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version SonicOS 7.0.0.0.
How severe is CVE-2020-5143?
CVE-2020-5143 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.57% probability of exploitation in the next 30 days.
How do I fix CVE-2020-5143?
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.

Are you affected by CVE-2020-5143?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST