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CVE-2017-2773

UnknownEPSS 2.13%

Last modified

CVE-2017-2773 is a vulnerability of currently unknown severity. An issue was discovered in Pivotal PCF Elastic Runtime 1.6.x versions prior to 1.6.60, 1.7.x versions prior to 1.7.41, 1.8.x versions prior to 1.8.23, and 1.9.x versions prior to 1.9.1. Incomplete validation logic in JSON Web Token (JWT) libraries can allow unprivileged attackers to impersonate other users in multiple components included in PCF Elastic Runtime, aka an "Unauthenticated JWT signing algorithm in multiple components" issue.. EPSS estimates a 2.13% chance of exploitation in the next 30 days.

Description

An issue was discovered in Pivotal PCF Elastic Runtime 1.6.x versions prior to 1.6.60, 1.7.x versions prior to 1.7.41, 1.8.x versions prior to 1.8.23, and 1.9.x versions prior to 1.9.1. Incomplete validation logic in JSON Web Token (JWT) libraries can allow unprivileged attackers to impersonate other users in multiple components included in PCF Elastic Runtime, aka an "Unauthenticated JWT signing algorithm in multiple components" issue.

Metrics

EPSS Probability
2.13%

79.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.0
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.1
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.2
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.3
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.4
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.5
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.6
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.7
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.8
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.9
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.10
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.11
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.12
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.13
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.14
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.15
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.16
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.17
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.18
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.19
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.20
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.21
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.22
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.23
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.24
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.25
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.26
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.27
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.28
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.29
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.30
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.31
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.32
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.33
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.34
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.35
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.36
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.37
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.38
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.39
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.40
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.41
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.42
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.43
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.44
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.45
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.46
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.47
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.48
Pivotal SoftwareCloud Foundry Elastic Runtime1.6.49

Showing 50 of 123 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-2773?
An issue was discovered in Pivotal PCF Elastic Runtime 1.6.x versions prior to 1.6.60, 1.7.x versions prior to 1.7.41, 1.8.x versions prior to 1.8.23, and 1.9.x versions prior to 1.9.1. Incomplete validation logic in JSON Web Token (JWT) libraries can allow unprivileged attackers to impersonate other users in multiple components included in PCF Elastic Runtime, aka an "Unauthenticated JWT signing algorithm in multiple components" issue.
How severe is CVE-2017-2773?
Severity scoring for CVE-2017-2773 is pending analysis. The EPSS model estimates a 2.13% probability of exploitation in the next 30 days.
How do I fix CVE-2017-2773?
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-2017-2773?

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

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Source: NVD / NIST