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CVE-2015-2851

6.8 · MEDIUM

client_chown in the sync client in Synology Cloud Station 1.1-2291 through 3.1-3320 on OS X allows local users to change the ownership of arbitrary files, and consequently obtain root access, by sp…

Published May 30, 2015synologyCWE-264EPSS 0.75%

Overview

CVE-2015-2851 is a medium-severity vulnerability affecting synology cloud_station. It was published on May 30, 2015 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

client_chown in the sync client in Synology Cloud Station 1.1-2291 through 3.1-3320 on OS X allows local users to change the ownership of arbitrary files, and consequently obtain root access, by specifying a filename.

Remediation

Check the references section for vendor advisories and patches from synology. Update cloud_station to the latest patched version. 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.

Affected products

VendorProductVersionsStatus

References

Refwww.kb.cert.org/vuls/id/551972Refwww.kb.cert.org/vuls/id/BLUU-9VBU45Refwww.securityfocus.com/bid/74826Refwww.kb.cert.org/vuls/id/551972Refwww.kb.cert.org/vuls/id/BLUU-9VBU45Refwww.securityfocus.com/bid/74826

How CyberStrike helps

Frequently asked questions

What is CVE-2015-2851?

CVE-2015-2851 is a medium-severity vulnerability affecting synology cloud_station. It was published on May 30, 2015 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

How severe is CVE-2015-2851?

This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2015-2851?

Check the references section for vendor advisories and patches from synology. Update cloud_station to the latest patched version. 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-2015-2851?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-2851 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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