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CVE-2020-1759

MEDIUMCVSS 6.8/10EPSS 1.37%

Last modified

CVE-2020-1759 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. A vulnerability was found in Red Hat Ceph Storage 4 and Red Hat Openshift Container Storage 4.2 where, A nonce reuse vulnerability was discovered in the secure mode of the messenger v2 protocol, which can allow an attacker to forge auth tags and potentially manipulate the data by leveraging the reuse of a nonce in a session. Messages encrypted using a reused nonce value are susceptible to serious confidentiality and integrity attacks.. EPSS estimates a 1.37% chance of exploitation in the next 30 days.

Description

A vulnerability was found in Red Hat Ceph Storage 4 and Red Hat Openshift Container Storage 4.2 where, A nonce reuse vulnerability was discovered in the secure mode of the messenger v2 protocol, which can allow an attacker to forge auth tags and potentially manipulate the data by leveraging the reuse of a nonce in a session. Messages encrypted using a reused nonce value are susceptible to serious confidentiality and integrity attacks.

Metrics

CVSS 3.1
6.8/10

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

EPSS Probability
1.37%

68.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RedhatCeph Storage4.0
RedhatOpenshift4.2
RedhatOpenstack15
LinuxfoundationCeph< 14.2.21
FedoraprojectFedora31

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-1759?
A vulnerability was found in Red Hat Ceph Storage 4 and Red Hat Openshift Container Storage 4.2 where, A nonce reuse vulnerability was discovered in the secure mode of the messenger v2 protocol, which can allow an attacker to forge auth tags and potentially manipulate the data by leveraging the reuse of a nonce in a session. Messages encrypted using a reused nonce value are susceptible to serious confidentiality and integrity attacks.
How severe is CVE-2020-1759?
CVE-2020-1759 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 1.37% probability of exploitation in the next 30 days.
How do I fix CVE-2020-1759?
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.

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Source: NVD / NIST