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CVE-2015-6409

5.9 · MEDIUM

Cisco Jabber 10.6.x, 11.0.x, and 11.1.x on Windows allows man-in-the-middle attackers to conduct STARTTLS downgrade attacks and trigger cleartext XMPP sessions via unspecified vectors, aka Bug ID C…

Published Dec 26, 2015ciscoCWE-200EPSS 1.34%

Overview

CVE-2015-6409 is a medium-severity vulnerability affecting cisco jabber. It was published on December 26, 2015 and has a CVSS 3.0 base score of 5.9 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Cisco Jabber 10.6.x, 11.0.x, and 11.1.x on Windows allows man-in-the-middle attackers to conduct STARTTLS downgrade attacks and trigger cleartext XMPP sessions via unspecified vectors, aka Bug ID CSCuw87419.

Remediation

Check the references section for vendor advisories and patches from cisco. Update jabber 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

Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151224-jabRefwww.securityfocus.com/bid/79678Refwww.securitytracker.com/id/1034540Refwww.synacktiv.com/ressources/cisco_jabber_starttls_downgrade.pdfReftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151224-jabRefwww.securityfocus.com/bid/79678Refwww.securitytracker.com/id/1034540Refwww.synacktiv.com/ressources/cisco_jabber_starttls_downgrade.pdf

How CyberStrike helps

Frequently asked questions

What is CVE-2015-6409?

CVE-2015-6409 is a medium-severity vulnerability affecting cisco jabber. It was published on December 26, 2015 and has a CVSS 3.0 base score of 5.9 (MEDIUM).

How severe is CVE-2015-6409?

This vulnerability has a CVSS 3.0 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2015-6409?

Check the references section for vendor advisories and patches from cisco. Update jabber 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-2015-6409?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-6409 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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