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CVE-2020-15787

CRITICALCVSS 9.8/10EPSS 1.48%

Last modified

CVE-2020-15787 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A vulnerability has been identified in SIMATIC HMI Unified Comfort Panels (All versions <= V16). Affected devices insufficiently validate authentication attempts as the information given can be truncated to match only a set number of characters versus the whole provided string. EPSS estimates a 1.48% chance of exploitation in the next 30 days.

Description

A vulnerability has been identified in SIMATIC HMI Unified Comfort Panels (All versions <= V16). Affected devices insufficiently validate authentication attempts as the information given can be truncated to match only a set number of characters versus the whole provided string. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack.

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
1.48%

70.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
SiemensSimatic Hmi United Comfort Panels FirmwareAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-15787?
A vulnerability has been identified in SIMATIC HMI Unified Comfort Panels (All versions <= V16). Affected devices insufficiently validate authentication attempts as the information given can be truncated to match only a set number of characters versus the whole provided string. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack.
How severe is CVE-2020-15787?
CVE-2020-15787 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.48% probability of exploitation in the next 30 days.
How do I fix CVE-2020-15787?
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-2020-15787?

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

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Source: NVD / NIST