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CVE-2020-2101

MEDIUMCVSS 5.3/10EPSS 1.37%

Last modified

CVE-2020-2101 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Jenkins 2.218 and earlier, LTS 2.204.1 and earlier did not use a constant-time comparison function for validating connection secrets, which could potentially allow an attacker to use a timing attack to obtain this secret.. EPSS estimates a 1.37% chance of exploitation in the next 30 days.

Description

Jenkins 2.218 and earlier, LTS 2.204.1 and earlier did not use a constant-time comparison function for validating connection secrets, which could potentially allow an attacker to use a timing attack to obtain this secret.

Metrics

CVSS 3.1
5.3/10

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

EPSS Probability
1.37%

68.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
JenkinsJenkins<= 2.204.1
JenkinsJenkins<= 2.218

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-2101?
Jenkins 2.218 and earlier, LTS 2.204.1 and earlier did not use a constant-time comparison function for validating connection secrets, which could potentially allow an attacker to use a timing attack to obtain this secret.
How severe is CVE-2020-2101?
CVE-2020-2101 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.37% probability of exploitation in the next 30 days.
How do I fix CVE-2020-2101?
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-2020-2101?

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

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Source: NVD / NIST