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CVE-2017-16858

6.8 · MEDIUM

The 'crowd-application' plugin module (notably used by the Google Apps plugin) in Atlassian Crowd from version 1.5.0 before version 3.1.2 allowed an attacker to impersonate a Crowd user in REST req…

Published Jan 31, 2018CWE-863EPSS 0.57%

Overview

CVE-2017-16858 is a medium-severity vulnerability. It was published on January 31, 2018 and has a CVSS 3.0 base score of 6.8 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

The 'crowd-application' plugin module (notably used by the Google Apps plugin) in Atlassian Crowd from version 1.5.0 before version 3.1.2 allowed an attacker to impersonate a Crowd user in REST requests by being able to authenticate to a directory bound to an application using the feature. Given the following situation: the Crowd application is bound to directory 1 and has a user called admin and the Google Apps application is bound to directory 2, which also has a user called admin, it was possible to authenticate REST requests using the credentials of the user coming from directory 2 and impersonate the user from directory 1.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refjira.atlassian.com/browse/CWD-5009Refjira.atlassian.com/browse/CWD-5009

How CyberStrike helps

Frequently asked questions

What is CVE-2017-16858?

CVE-2017-16858 is a medium-severity vulnerability. It was published on January 31, 2018 and has a CVSS 3.0 base score of 6.8 (MEDIUM).

How severe is CVE-2017-16858?

This vulnerability has a CVSS 3.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2017-16858?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-16858?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-16858 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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